Answer:
Divide
Step-by-step explanation:
If you deposit $2500 into an account that pays 6.25% interest compounded monthly, how long will it take to have
$4000 in the account?
Answer:
about 15-16 years
Step-by-step explanation:
Answer: 9 years 7 months and 6 days.
Step-by-step explanation: May I have brainliest, please.
what is the answer to 8x - 4y = 16
Answer:4.00000
Step-by-step explanation:
Slope = 2
x-intercept = -4/2 = -2
y-intercept = 4/1 = 4.00000
find the sum of 15 and the difference between 9 and 5 step by step
Answer:
Sum of 15 and 5 is 20
Difference between 9 and 5 is 4
Step-by-step explanation:
Answer:
15 + 4 = 19 or 15 - 4 = 11
Step-by-step explanation:
Sum of 15 are: 6 and 9, 7 and 8, 8 and 7, 9 and 6
9+6 = 15
8+7 = 15
The difference between 9 and 5 is 4.
9-5 = 4
5-9 = -4
In all
15 + 4 = 19 or 15 - 4 = 11
Solve for x, given that point R is between points Q and S and QR = 6x-20 and RS = 5x-24 and QS = 55.
Answer:
x = 9
Step-by-step explanation:
QR + RS = QS
6x - 20 + 5x - 24 = 55
11x - 44 = 55
11x = 99
x = 9 <--- This is the answer
Hope this helps!
If 8 gal of gasoline costs $28.48, how much would it cost to completely fill a 20-gal tank?
Answer:
$71.20
Step-by-step explanation:
8/28.48=20/x
Cross multiply
71.2
$71.20
Answer:
Easy, $71.20
Step-by-step explanation:
1st 8/28.48=20/x
(Cross multiply)
2nd 71.2
Last $71.20
Juan Carlos graphs the functions f(x) = 8x - 2 and g(x) = -8x + 2
At what point will the graphs of these functions intersect? Write your answer as a decimal.
What is the solution to the equation f(x) = g(x)?
11
Answer:
[tex]x = 0.25[/tex]
Step-by-step explanation:
Given
[tex]f(x) = 8x - 2\\ g(x) = -8x + 2[/tex]
Required
Determine their point of intersection
To do this, we simply do:
[tex]f(x) = g(x)[/tex]
This gives:
[tex]8x - 2 = -8x + 2[/tex]
Collect Like Terms
[tex]8x + 8x = 2 + 2[/tex]
[tex]16x = 4[/tex]
Solve for x
[tex]x = 4/16[/tex]
[tex]x = 0.25[/tex]
Hence:
Their point of intersection is at [tex]x = 0.25[/tex]
ASAP JSUT NEED ANSWER NOT WORK HURRY
Answer:
B
Step-by-step explanation:
4x + 11y = 3
11y = -4x + 3
y = -4/11x + 3/11
perp. 11/4
y - 7 = 11/4(x - 2)
y - 7 = 11/4x - 11/2
y -14/2= 11/4x - 11/2
y = 11/4x + 3/2
Afire hydrant that is 2 3/4 feet tall casts a shadow that 2 feet long. Find the length of the shadow cast by a nearby 154-foot tall lighthouse.
2 3/4 = 2.75 2.75/2 = 154/x
154x2= 308
308/2.75= x 112= x. shadow casted = 112 feet
A student sales neckslaces to earn eztra money. She charged $10 per necklace for material and $2.75 per hour to make unique gifts. How much would two necklace cost together if one takes her an hour to make and the other three hoursto make?
Answer:
Final answer: $31Step-by-step explanation:
Okay, so, 2 necklaces would be $20.
One hour would be + $2.75
Three hours would be + $8.25
So all the hours together would be $11
Then, you add $20 + $11 to get $31.
Which fraction is equivalent to 38%? StartFraction 3 over 8 EndFraction StartFraction 9 over 25 EndFraction StartFraction 19 over 50 EndFraction 3 and StartFraction 4 over 5 EndFraction PLEASE HELP!!!! Will give brainliest PLEASE HELP
Answer:
19 over 50
20/50 = 40%.
40% - 2% = 38% (19/50)
Solution = 19 over 50
Hope this helps!
What is the value of z?
What is the measure of < x?
What is the measure of < y?
What is the measure of
Answer: w = 110° x = 83° y = 87° z = 97°
Step-by-step explanation:
∠(x - 13) and ∠w form a linear pair so their sum is equal to 180°
x - 13 + w = 180 → w = -x + 193
∠(x + 10) and ∠y form a linear pair so their sum is equal to 180°
x + 10 + y = 180 → y = -x + 170
∠x and ∠z form a linear pair so their sum is equal to 180°
x + z = 180 → z = 180 - x
∠x and ∠y and ∠w are the angles of a triangle so their sum equals 180°
x + y + w = 180
x + (-x + 170) + (-x + 193) = 180 Substitution
-x + 263 = 180 Add Like Terms
-x = -83 Subtracted 263 from both sides
x = 83 Divided both sides by -1
w = -x + 193 y = -x + 170 z = 180 - x
w = -83 + 193 y = -83 + 170 z = 180 - 83
w = 110 y = 87 z = 97
Answer:
z= 120, ∠x= 60°, ∠y= 50°, ∠w= 70°
Step-by-step explanation:
Please see the attached pictures for the full solution.
Write a short paragraph composes at least 10 sentences
discussing factors affecting solubility
Answer:
Step-by-step explanation:
Solubility can be defined as the ability of a solute (could be solid, liquid or gas) to dissolve in a solvent in order to produce a solution. There are several factors affecting solubility which includes (basically four) temperature, polarity, surface area of solute particles and pressure of gases. Generally, an increase in temperature leads to an increase in the solubility of a solute in a solvent. This is because an increase in temperature will increase the average kinetic energy of molecules in the solution which leads to increase interaction between the solute and solvent particles. There is a general saying of "like dissolve like" when discussing polarity. For example, organic solvents are used to dissolve organic solutes (just as petrol is used to wash grease off hands and surfaces). Hence, when the solute and solvent have the same polarity, solubility occurs easily, otherwise solubility may be difficult or may not even occur. A reduced/smaller surface area of the solute leads to an increase in solubility as this makes it easy for the solute particles to interact easily with the solvent. In gases, an increase in pressure increases the interaction between the gaseous molecules of the solute and the solvent, thus leading to an increased solubility. Pressure does not affect solubility in solids and rarely in liquids.
Here, we are required to discuss factors affecting solubility.
Solubility is a property which is characteristic of a specific solute-solvent combination.As such, different solutes have differing solubilities in the same solvent.Factors affecting solubility include:
Temperature; solubility of a solute in a solvent increases with increase in temperature and vice versa. However, the same cannot be said for a gases whose solubility decreases with increase in temperature.
Polarity is another factor that affects solubility. In which case, polar solutes dissolve in polar solvents while non-polar solutes dissolve in non-polar solvents. The phenomenon of polarity follows the "like dissolves like" principle.
However, it is important to note that pressure does not have effect on solubility. As such, the solubility of a solute-solvent combination is not affected by pressure.
The molecular size of the solutes also has an effect on the solubility. This is so because, the larger the molecular size of the solute, the more difficult it is for the solvent molecules to surround it during solubilization.
Increasing the surface area of a solute further increases the rate of solubilization and hence the solubility. Another way to enhance the solubility of a solute-solvent combination is by stirring to enhance solubility.
Read more:
https://brainly.com/question/3110135
A group of 12 students is deciding whether to go to the science center or the zoo. Science center tickets are 3 for $36.75 and zoo tickets are 4 for $51.
How much will a group of 12 students save by choosing the science center?
Enter your answer in the box.
Answer:
$154
Step-by-step explanation:
So you have 12 students, and overpriced tickets, 4 x 36.75 = 147. Check anwser by dividing 147 by 36.75, you should get 4.
Answer:
154 bucks
Step-by-step explanation:
Wendy is paid 7.20 for every 4/5 of an hour she works. what is Wendy's pay per hour
Answer:
9.00 per hourStep-by-step explanation:
Payment is
7.20 for every 4/5Divide both by 4/5 to find payment per hour
7.20 ÷ 4/5 ⇔ 4/5 ÷ 4/57.20 ÷ 0.8 ⇔ 19.00 ⇔ 19.00 unit of money per 1 hour
Answer:
$9 per hour.
Step-by-step explanation:
7.2 ÷ 4/5
7.2/1 * 5/4
36/4
9
Best of Luck!
please help i’m being timed
find the missing length, n
Answer:
n=15
Step-by-step explanation:
[tex]\frac{5}{2}=\frac{n}{6}\\\\n=6(\frac{5}{2})\\\\n=15[/tex]
Answer:
n=15
Step-by-step explanation:
6÷2=3
3×5=15
2. Solve this inequality. Show your work. 5.6+2.2.x > 65.6-1.8x
Answer: x>15
Step-by-step explanation: Rearrange the equation by subtracting what is to the right of the greater than sign from both sides of the inequality:
(56/10)+(22/10)*x-((656/10)-(18/10)*x)>0
Simplify 9/5
56 22 656 9
(——+(——•x))-(———-(—•x)) > 0
10 10 10 5
Simplify 328/5
56 22 328 9x
(——+(——•x))-(———-——) > 0
10 10 5 5
Adding fractions which have a common denominator
Combine the numerators together, put the sum or difference over the common denominator then reduce to lowest terms if possible:
328 - (9x) 328 - 9x
—————————— = ————————
5 5
56/10+22/10.x/5)) >0 (328 - 9x)
Simplify 11/5
56/10+11/5.x/5))->0 (328-9x
Simplify 28/5
28 11x (328 - 9x)
(—— + ———) - —————————— > 0
5 5 5
Adding fractions which have a common denominator
Adding fractions which have a common denominator
Combine the numerators together, put the sum or difference over the common denominator then reduce to lowest terms if possible:
28 + 11x 11x + 28
———————— = ————————
5 5
:
(11x + 28) (328 - 9x)
—————————— - —————————— > 0
5 5
Adding fractions which have a common denominator
Adding fractions which have a common denominator
Combine the numerators together, put the sum or difference over the common denominator then reduce to lowest terms if possible:
(11x+28) - ((328-9x)) 20x - 300
————————————————————— = —————————
5 5
Pull out like factors :
20x - 300 = 20 • (x - 15)
20 • (x - 15)
————————————— > 0
Multiply both sides by 5
Divide both sides by 20
Solve Basic Inequality :
Add 15 to both sides
x > 15
Answer:
.
Step-by-step explanation:
.
175 is 19% of what number?
Answer:
921.05
Step-by-step explanation:
Answer:
921.05
Step-by-step explanation:
If 19% of a number is 175, then what is 100% of that number? Setup the equation.
Solve for Y
Using cross multiplication of two fractions, we get
19Y = 175 x 100
19Y = 17500
Y = 17500
100 = 921.05
help please help Needed
Answer:
B. [tex]4^\frac{1}{2} + 4^\frac{1}{2}[/tex]
Step-by-step explanation:
Adding exponents with the same bases follows this rule: [tex]a^x+a^y=a^{x+y}[/tex].
So before Ned merges the exponents together, Ned did answer choice B.
Also, you can check to see if you get 4 by putting it in the calculator.
Daphne likes to ski at a resort that is open from December through April. According to a sign at the resort, 20, percent of the snow falls occur in December, 25, percent in January, 20, percent in February, 20, percent in March, and 15, percent in April. She wondered if the snow falls in her hometown followed this distribution, so she took a random sample of 80 days between December and April with snowfall and recorded their months. Here are her results:_______.
Month December January February March April
Days 16 11 16 18 19
She wants to use these results to carry out a x2 goodness-of-fit test to determine if the distribution of snowfalls in her hometown disagrees with the claimed percentages.
Answer:
Step-by-step explanation:
From the given information:
We can compute the null hypothesis & the alternative hypothesis as:
[tex]{H_o}:\text{Distribution of snowfalls in her hometown is similar to claimed percentage }[/tex]
[tex]{H_a}:\text{Distribution of snowfalls in her hometown is not similar to claimed percentage }[/tex]
The degree of freedom = n - 1
The degree of freedom = 5 - 1
The degree of freedom = 4
At the level of significance of 0.05 and degree of freedom 4,
the rejection region = 9.488
However, we can compute the chi-square X² goodness of fit test as:
months frequency (p) observed O Expected E Chi-square [tex]X^2= \dfrac{(O-E)^2}{E}[/tex]
Dec 0.2 16 16 [tex]\dfrac{(16-16)^2}{16} =0[/tex]
Jan 0.250 11 20 [tex]\dfrac{(11-20)^2}{20} =4.050[/tex]
Feb 0.200 16 16 [tex]\dfrac{(16-16)^2}{16} =0[/tex]
Mar 0.200 18 16 [tex]\dfrac{(18-16)^2}{16} =0.250[/tex]
Apr 0.150 19 12 [tex]\dfrac{(19-12)^2}{12} =4.083[/tex]
Total 1.000 80 80 8.3833
∴
The test statistics X² = 8.3833
Thus; we fail to reject the [tex]H_o[/tex] since test statistics X² doesn't fall in the rejection region.
Therefore; there is sufficient evidence to conclude that the distribution of snowfalls in her hometown is not similar to the claimed percentage.
Answer:
x^2 = 8.383;
0.05 < P-value < 0.10
Step-by-step explanation:
HELP ME I BEG YOU!
Brody has 2 gerbils named Yip and Yap. Yip weights 3.62 ounces and Yap weights 2.79 ounces. How much heavier is Yip than Yap?
Answer:
0.83 more ounces
Step-by-step explanation:
What we know:
// Yip is 3.62 ounces
// Yap is 2.79 ounces
What we need to find out:
How much heavier Yip is than Yap.
Solve:
3.62 - 2.79 = 0.83
- You can also use a calculator or do it out on paper.
Hope this helps!
Answer:
0.83 ounces
Step-by-step explanation:
3.62-2.79=0.83
f(x) = -22 – 9x
Find f(-2)
Answer:
f(-2)= -4
Step-by-step explanation:
plug in -2 for every x you see in the equation.
f(-2)= -22-9(-2)
= -22+18
= -4
therefore, f(-2)= -4
Answer:
[tex]\boxed {\tt f(-2)=-4}[/tex]
Step-by-step explanation:
We are given the function:
[tex]f(x)= -22-9x[/tex]
We want to find f(-2). Therefore, we must substitute -2 in for each x.
[tex]f(-2)=-22-9(-2)[/tex]
Solve according to PEMDAS: Parentheses, Exponents, Multiplication, Division, Addition, and Subtraction.
Multiply -9 and -2.
[tex]f(-2)=-22+18[/tex]
Add 18 to -22.
[tex]f(-2)=-4[/tex]
f(-2) is equal to -4 for f(x)=-22-9x
Solve the following inequality for x.
-20 + 6x < 8x
A.
x < -10
B.
x < -1.43
C.
x > -1.43
D.
x > -10
Answer: D
Step-by-step explanation:
The ratio of x to y is 1/2 . If the ratio of x + 2 to y + 1 is 2/3 , then what is the value of x?
Answer:
x =4
Step-by-step explanation:
x/y = 1/2
(x + 2) / (y + 1) = 2/3
Cross multiply the first equation
2x = y
Put that value for y into the second equation.
(x + 2) / (2x + 1) = 2/3 Cross multiply
3(x + 2) = 2(2x + 1) Remove the brackets.
3x + 6 = 4x + 2 Subtract 3x from both sides
6 = 4x - 3x + 2
6 = x + 2 Subtract 2 from both sides
6-2 = x
x = 4
A sphere has a diameter of 18 in. What is the volume of the sphere? (Use 3.14 for. Round the answer to two decimal
places.) Recall the Formula V=4/3pie r³ Show work.
Answer:
The sphere's volume with a diameter of 18 in. is 3052.08 in³.
We know that the volume of a sphere is:
[tex]V=\frac{4}{3}\pi\text{r}^{3}[/tex] --------- (i)
where V ⇒ Volume of the sphere
r ⇒ radius of the sphere
Now as per the question:
The diameter of the sphere, d = 18 in.
We know that the radius is half the diameter:
r = d/2 ---------- (ii)
Therefore, substituting the values in equation (ii),
r = 18/2
r = 9 in.
Use the value of the radius to find the Volume of the sphere:
Putting the values in equation (i),
[tex]\text{V}=\frac{4}{3} (3.14)(9)^{3}[/tex]
V = 3052.08 in³
Therefore, the volume of the sphere of diameter 18 in. rounded to two decimal places is 3052.08 in³.
Read more about the volume of spheres:
brainly.com/question/10171109
what is 111% of 800
Answer:
888
Step-by-step explanation:
c) Solve 4(k – 6) = 20
Answer:
k=11
Step-by-step explanation:
distribute
4 times k =4k
4 times -6 = -24
4k-24=20
add 24 to both sides
20 plus 24
= 44
4k=44
divide 4 from both sides
k=11
The value of k is 11
What are linear equations?Linear equations help in representing the relationship between variables such as x, y, and z, and are expressed in exponents of one degree. In these linear equations, we use algebra, starting from the basics such as the addition and subtraction of algebraic expressions.
Given here 4(k-6) = 20
k-6=5
k = 11
Hence the value of k is 11
Learn more about linear equations here:
https://brainly.com/question/29739212
#SPJ2
I NEED HELP PLEASEEEE
Answer:
x y
0 -1
1 2
2 5
3 8
4 11
5 14
Complete the table to
differentiate between the three states of matter.
Answer: I hope it helped.
Step-by-step explanation:
Arrangement of Particles:
Solid: solid are tightly packed, usually in a regular pattern.
Liquid: are close together.
Gas: gas are well separated.
Motion of Particles:
Solid: . solid vibrate but generally do not move from place to place. Liquid: liquid vibrate, move about, and slide past each other.
Gas: gas vibrate and move freely at high speeds.
Can someone please help me understand thank you
Answer:
(6): The current is 2 miles per hour
(7): 20/3 hours
For (7), if your software allows you to use mixed numbers, you can write 6 2/3 instead of 20/3 if you prefer.
Step-by-step explanation:
(6) Finding the speed of the river's current:
Step 1: Calculate the effective speed upstream
When paddling upstream, Jeanette's speed relative to the ground is reduced by the speed of the river's current. So her effective speed upstream is (5 - c) miles per hour.
Step 2: Calculate the effective speed downstream
When paddling downstream, Jeanette's speed relative to the ground is increased by the speed of the river's current. So her effective speed downstream is (5 + c) miles per hour.
Step 3: Calculate the time taken to travel 18 miles upstream
Using the formula time = distance / speed, the time taken to travel 18 miles upstream is:
Time upstream = 18 / (5 - c) hours
Step 4: Calculate the time taken to travel 42 miles downstream
Using the same formula, the time taken to travel 42 miles downstream is:
Time downstream = 42 / (5 + c) hours
Step 5: Set up the equation based on the given information
According to the problem, the time taken upstream is equal to the time taken downstream. So we can set up the equation:
Time upstream = Time downstream
Step 6: Solve the equation
Substituting the expressions for time upstream and time downstream from steps 3 and 4 respectively, we have:
18 / (5 - c) = 42 / (5 + c)
Step 7: Cross-multiply and solve for 'c'
18(5 + c) = 42(5 - c)
90 + 18c = 210 - 42c
60c = 120
c = 2
Therefore, the speed of the river's current is 2 miles per hour.
(7) Finding the time it takes for Hannah and Destiny to paint the room simultaneously:
Step 1:
Let x be the number of hours it takes for both Hannah and Destiny to paint the room together.Step 2:
In one hour, Hannah can paint 1/15 of the room, and Destiny can paint 1/12 of the room. The sum of their fractions will tell how much of the room they can paint in an hour:(1/15) + (1/12) = (4/60) + (5/60) = 9/60 = 3/20
Thus, they can paint 3/20 of the room in one hour
Step 3:
Since they can paint 3/20 of the room in one hour, 1 represents the entire room being painted (technically 20/20 which reduces to 1/1 or just 1).Thus, we can create a proportion to determine how many hours it will take for them to paint the entire room:
3/20 painted / 1 hour = 1 painted / x hours
(3/20) / 1 = 1 / x
(3/20 = 1/x) * x
(3/20x = 1) / 3/20
x = 1 * 20/3
x = 20/3
Thus, it would 20/3 hours (about 6.67 hours) for the pair to paint the room while working together.
Answer:
6. 2 mph
7. 6 2/3 hours
Step-by-step explanation:
You want the speed of a river's current if it takes a kayak paddling 5 mph the same time for 18 miles upstream as for 42 miles downstream. You want to know the "working together" time for Hannah and Destiny if they can paint a room in 15 and 12 hours, respectively, working alone.
RateThese are rate problems. The general relation involved is ...
rate = quantity / time
This equation can be rearranged to give you quantity or time, as you may need.
For the river current problem, the quantity is miles, and the time is hours. The rate (no surprise here) is miles per hour.
For the painting problem, the quantity is painted rooms, and the time is hours. The rate is given by its inverse: hours per painted room. You can only add rates expressed as quantity/time, so the given hours per room will need to be inverted to give rooms per hour.
6. CurrentThe speed upstream is 5-c, and the distance is 18 miles, so the time is ...
18/(5 -c)
The speed downstream is 5+c, and the distance is 42 miles, so the time is ...
42/(5 +c)
These times are said to be the same, so we have ...
18/(5 -c) = 42/(5 +c)
Multiplying by (5-c)(5+c)/6, we have ...
3(5 +c) = 7(5 -c)
15 +3c = 35 -7c . . . . . eliminate parentheses
10c = 20 . . . . . . . . . . . add 7c-15
c = 2 . . . . . . . . . divide by 2
The current is 2 miles per hour.
7. PaintingHannah's rate of painting rooms is ...
(1 room)/(15 hours) = 1/15 room/hour
Destiny's rate of painting rooms is ...
(1 room)/(12 hours) = 1/12 room/hour
These rates add when they work together:
(1/15 room/hour) +(1/12 room/hour) = (12 +15)/(12×15) room/hour
= 3/20 room/hour
Then the time it takes to paint 1 room is ...
time = quantity/rate
(1 room)/(3/20 room/hour) = 20/3 hour = 6 2/3 hour
Working together it take the two painters 6 2/3 hours to paint the room.
__
Additional comment
It helps to be comfortable with arithmetic using fractions and rational expressions (same thing, but with variables).
<95141404393>
Finding the solution set
Answer:
x = 16
Step-by-step explanation:
This is the answer because:
1) First, minus 4 from +4 and 20
+4 - 4 = 0
20 - 4 = 16
2) Now, you are left with x = 16
Therefore, the answer is x = 16. You can also check by adding 16 + 4 which equals to 20. This is how you solve for the variable by using addition property of equality.
Hope this helps! :D
