Answer: -5/2
Step-by-step explanation:
(-9-1)/(4-0) = -10/4 = -5/2
9 x − 3 1/2 PLSS HELP I DO NOT UNDERSTAND
Step-by-step explanation:
9 times - 31 = - 279
-279 /2 = - 139.5
HELPPPPPP IN NEED
The temperature was less than 20 degrees Fahrenheit on the morning of the
test what is the inequality to represent the situation
Answer:
>20 degrees
Step-by-step explanation:
Whiskers the cat weighs 2 2/3 kg. Piglio weighs 4 kg. For each question, write a multiplication and a division equation, decide whether the answer is greater or less than 1, and then answer the question.
How many times as heavy as Piglio is Whiskers?
[ Select ]
How many times as heavy as Whiskers is Piglio?
[ Select ]
Answer:
a. 1/2
b. 2
Step-by-step explanation:
Whiskers' weight is 2 and Piglio's weight is 4. For getting the first question we need to see what percentage of Piglio's weight is Whiskers' weight. Lets say that Piglio's is 100%, so the following ratio must be true:
2/4 = x/100
The ratio between 2 and 4, the weights, must be equal to the ratio between the relative percentages. So, x is, multiplying both sides by 100:
200/4 = x
50 = x
So, x, that is the relative weight of Whiskers relative to Piglio is 50, this is, Whiskers is 50%, or 1/2, times as heavy as Piglio.
With it we get the answer for the second, that is easier. How many times as heavy as Whiskers is Piglio? Well, we can do the same that before:
4/2 = y/100
Now we use Whiskers weight as reference as we want to campare Piglio to Whiskers. So y is the weight of Piglio, and its ratio to Whiskers must fit the relation 4/2. Multiplying both sides by 100:
200 = y
So, Pilgio is 200%, or 2 times, as heavy as whiskers.
i hoped this helped.
Answer:
Step-by-step explanation: Piglio = p Whiskers = w
P = x times W (multiplication equation) W = P/x (division equation)
4 = x times 2 2/3
4 = x times 8/3 answer greater than 1
4 = x* 8/3
find for x
x = 4 divided by 8/3
= 12/8
= 1 1/2
answer Piglio is 1 1/2 times heavier than Whiskers
Whiskers is x times P answer will be less than 1
W= x times P Multiplication equation
2 2/3 = x times 4
8/3 = 4x (divide both sides by 4 to isolate the variable)
8/3 divided by 4 = 8/12
answer Whiskers is 8/12 or 2/3 as big a Piglio
Twelve books cost $59.88 and 21 books cost $104.79. Is there is a constant of proportionality between these purchases?
the answer to your question is $4.99
PLEASE HELP
The recipe for 2 dozen blueberry muffins calls
for 3 cups of sugar. The number of muffins
varies directly with the amount of sugar you
use. Estimate how many cups of sugar are
needed to make 6 dozen muffins
Answer:
9 cups of sugar
Step-by-step explanation:
Since 2*3=6 (dozens of muffins), 3*3=9 (cups of sugar)will be the answer
Answer:
Step-by-step explanation:
2/3=6/×
Cross multiply
2x=18
Divide both sides by 2
X=9
9 cups of sugar is needed
1) Which is NOT a solution to the equation:
3y + x = 25
(1,8)
(10,5)
(2,7)
(13,4)
URGENT!!
There is approximately .62 miles in 1.0 kilometers.if you were traveling 70 km per hour,about how fast would you be traveling in miles per hour
Answer:
70km=43.5mph
Step-by-step explanation:
Please gives me Brainlest, hope it help!
A model car is constructed with a scale of 1 : 15. If the actual car is 12 feet long, which proportion represents the lenght x of the model car?
Answer:
0.8 feet
Step-by-step explanation:
1:15
x:12
So to find 1 unit,
x= 12÷15
=0.8
December + 724.37
January + 3,912.26
February - 1,051.51
March - 4,023.02
What is the overall profit or loss for the first four months the deli was open?
Answer:
They lost a total of $5.074.53
Step-by-step explanation:
I believe the question is asking how much money the company lost in these four months, so you would just add 1051.51 and 4023.02
Hope this helps! I apologize if I'm incorrect
Alex had 5/12 of a pound of blueberries. His friend Lucia eats
2/5 of the blueberries. How many pounds of blueberries did
Lucia eat?
Simplify your answer and write it as a proper fraction or as a
whole or mixed number.
___ pounds
Answer:
Lucia ate 24/60 pounds which is simplified to 2/5
Step-by-step explanation:
so in order to find out how much she ate you have to find the common denominator between the two fraction and that was 60.So when you changed 2/5 you got 24/60 which is 2/5 simplified.
Lucie eats 1/6 pound of blueberries.
What is Unitary Method?The unitary technique involves first determining the value of a single unit, followed by the value of the necessary number of units.
For example, Let's say Ram spends 36 Rs. for a dozen (12) bananas.
12 bananas will set you back 36 Rs. 1 banana costs 36 x 12 = 3 Rupees.
As a result, one banana costs three rupees. Let's say we need to calculate the price of 15 bananas.
This may be done as follows: 15 bananas cost 3 rupees each; 15 units cost 45 rupees.
Given:
Alex had 5/12 of a pound of blueberries.
His friend Lucia eats 2/5 of the blueberries.
So, Lucie eats
= 2/5 of 5/12
= 2/5 x 5/12
= 2/12
= 1/6 pound
Hence, Lucie eats 1/6 pound.
Learn more about Unitary Method here:
https://brainly.com/question/22056199
#SPJ2
If a = -3, find the value of
a) 2a
b) a2
c) 3a2
Answer:
A) -6
B) -6
C) -18
Step-by-step explanation:
Answer:
a) 2(-3)=-6
b) -3(2)= -6
c) 3(-3)2= -18
Step-by-step explanation:
PLEASE HELP ME ASAP?!?Classify the following triangle. Check all that apply.
Answer:
B and c I think lolll
Answer:
isoceles right triangle
Step-by-step explanation:
1. it has a right angle
2. it has to equivalent sides
Russell built a walking bridge with two
planks. One of the planks was 22 feet
wide and the other was 3 feet wide.
What is the combined width of the planks?
Answer:
50
Step-by-step explanation:
22 for the long sides
22+22=44
3 for the short sides
3+3=6
44+6=50
GCSE maths question about the turning point of the graph.
please help!
Answer:
The coordinates of the turning point are (2, -9)
Step-by-step explanation:
The coordinates of the turning points of the quadratic equation
y = ax² + bx + c, are (h, k), where
h = [tex]\frac{-b}{2a}[/tex] k is the value of y at x = h∵ The equation of the curve is y = x² + bx + c
→ By comparing it with the form above
∴ a = 1
∵ The point (0, -5) lies on the curve
→ Substitute x by 0 and y by -5 in the equation to find the value f c
∵ -5 = (0)² + b(0) + c
∴ -5 = 0 + 0 + c
∴ -5 = c
→ Substitute it in the equatin
∴ y = x² + bx - 5
∵ The point (5, 0) lies on the curve
→ Substitute x by 5 and y by 0 in the equation to find the value f c
∵ 0 = (5)² + b(5) - 5
∴ 0 = 25 + 5b - 5
→ Add the like terms in the right side
∴ 0 = 20 + 5b
→ Subtract 5b from bth sides
∵ 0 - 5b = 20 + 5b - 5b
∴ -5b = 20
→ Divide both sides by -5 to find b
∴ b = -4
→ Substitute it in the equatin
∴ y = x² - 4x - 5
∵ a = 1 and b = -4
→ Substitute them in the rule of h above t find it
∵ h = [tex]\frac{-(-4)}{2(1)}[/tex] = [tex]\frac{4}{2}[/tex]
∴ h = 2
→ To find k, substitute x by 2 and y by k
∵ k = (2)² - 4(2) - 5
∴ k = 4 - 8 - 5
∴ k = -9
∴ The cordinates of the turning point are (2, -9)
How would you solve this problem? Type below:
Answer:about maybe 6 hours
Step-by-step explanation:
because movies are almost 1 to 2 hours and for all of those it would be 6 hours
Answer:
5.25 hours of movie-marathon-watching
Step-by-step explanation:
To solve this problem, you should multiply 3 times 1.75. (.75 is equal to 3/4.)
Please mark me Brainliest, I need it to move onto the next level. <3
Can you please give a step by step answer with the reasons?
Answer:
I'm uploading a picture. Hope this helps.
Step-by-step explanation:
The figure is made up of 2 cones and a cylinder. The cones and cylinder have a 4 cm diameter. What is the exact volume of this figure? 5πcm³ 12πcm³ 20πcm³ 36πcm³ A 3 centimeter high cylinder with two 3 centimeter high cones on each end that have 4 centimeter diameters
Answer:
the answer is 20 pi which is the third one
Which one is correct? Please hurry <3
Answer:
1500
Step-by-step explanation:
I did the math and got it right
What are factored forms of the following expressions
Can somebody plz help s with this math question this is my last question !
Answer: x=30 degrees
Step-by-step explanation:
Reason: Triangle Congruency
ΔABC ≅ ΔDEC --> this means that ∠A≅∠D, ∠B≅∠E, ∠C≅∠C --> definition of congruent triangles55°+65°+2x= 180° --> CPCTC (Corresponding parts of congruent triangles are congruent) and sum of angles in trianglex= 30 degrees--> AlgebraA password contains 6 digits such as 174668 how many different passwords can be formed
Answer:
there are 1 million possible passwords
Answer: One million possible combinations
Solve for m y-y=m(x-x)
Answer:
m = y/x
Step-by-step explanation:
y-y = m(x-x)
simplify:
-2y = m(-2x)
simplify again
-2y = -2mx
divide to get rid of -2 and x
-2y = -2mx
----------------
-2x
y
- = m
x
????????????????????????????
Answer:
Step two was incorrect
Step-by-step explanation:
when he solved
e/4 *4= 2.5*4
He said that 2.5*4=8 which is incorrect
It equals 10 so the actual answer is-
e=10
is this table a function? explain how you know
simplify 4√72 please.
Answer:
1/18?
Step-by-step explanation:
Answer:
The exact form would be: 12√3
In decimal form it would be: 20.78460969
HELP I ONLY HAVE 5 MIN TO TURN THIS IN !!!!!!!!!!!!!!!!!!!!!
Answer:
1.3d-2d =-17-8
1d=25
d=25/1
d=25
2.2n-5n=-10+7
-3n=-3
N= -3/-3
N=1
3.p+6p=13+15
7p=28
p=28/7
p=4
4. 3(y+7)
3y+21
2y+3=3y+21
2y-3y=21-3
-1y=18
y=18/-1
y=-18
A membership costs for $40 for each month.
The cost of the membership for 12 months will be $
Select the correct answer.
Lucian and Blake are taking their bikes out to a nature trail in the woods. They want to be out for no more than 6 hours, and they want to travel at
least 40 miles between walking and biking. On average, they walk at a rate of 3 miles/hour and bike at a rate of 12 miles/hour.
Which graph represents the number of hours Lucian and Blake can spend either walking or biking to meet their goals?
Answer:
here's the pictures to the question, just comment the answer don't mind the c bubble being filled.
Step-by-step explanation:
A system of inequality is the system in which the set of more than two in inequalities in one or more variables.
The graph which represents the number of hours Lucian and Blake can spend either walking or biking to meet their goals is attached below.
What is system of inequality?A system of inequality is the system in which the set of more than two in inequalities in one or more variables.
Given information-
Total distance they want to travel is equal to or more than 40 miles.
Total hours spend by the Lucian and Blake is not more than the 6 hours.
On average, they walk at a rate of 3 miles/hour and bike at a rate of 12 miles/hour.
Suppose they walk [tex]x[/tex] hours and bike [tex]y[/tex] hours.
As total distance they want to travel is equal to or more than 40 miles and they walk at a rate of 3 miles/hour and bike at the rate of 12 miles/hours.. Thus,
[tex]3x+12y\geq 40[/tex]
Total hours spend by the Lucian and Blake is not more than the 6 hours. Thus,
[tex]x+y\leq 6[/tex]
The graph plotted using the inequality equation obtained is attached below.
Hence, The graph which represents the number of hours Lucian and Blake can spend either walking or biking to meet their goals is attached below.
Learn more about the system of inequality here;
https://brainly.com/question/9774970
Each month, Ellie spends 6 hours in tap class at her dance studio. If each month she spends 30% of her class time in tap class, what is the total number of hours she spends in dance classes each month? Show your work or explain how you found your answer in complete sentences.
Answer:
high so I think your answer might be so says each month at least $26 and tap class at her dance studio if each when she spends 30 of her class time in tap class how is the total number of hours spent it in dance class each month show your work or explain how he found your answer in a sentence so basically divide 30 by 6 and then you get your answer which is 5
A rocket is shot off from a launcher. The accompanying table represents the height of the rocket at given times, where x is time, in seconds, and y is height, in feet. Write a quadratic regression equation for this set of data, rounding all coefficients . Using this equation, find the height, , at a time of 12.1 seconds.
Time in Seconds (x) Height in Feet (y)
0.5 121
1.4 321
2.2 467
2.8 573
3.3 649
Answer:
The height at time of 12.1 seconds is approximately 729.2562 feet
Step-by-step explanation:
The general form of the quadratic regression equation is y = A + Bx + Cx²
The quadratic regression formula is given as follows;
[tex]B = \dfrac{S_{xy}S_{x'x'}-S_{x'y}S_{xx'}}{S_{xx}S_{x'x'} -(S_{xx'})^2}[/tex]
[tex]C = \dfrac{S_{x'y}S_{xx}-S_{xy}S_{xx'}}{S_{xx}S_{x'x'} -(S_{xx'})^2}[/tex]
[tex]A = \bar y - B \bar x - C \bar {x^2}[/tex]
[tex]S_{xx} = \Sigma (x_i - \bar x)^2[/tex]
[tex]S_{xy} = \Sigma (x_i - \bar x)(y_i - \bar y)[/tex]
[tex]S_{xx'} = \Sigma (x_i - \bar x)(x^2_i - \bar {x^2})[/tex]
[tex]S_{x'x'} = \Sigma (x^2_i - \bar {x^2})^2[/tex]
[tex]S_{x'y} = \Sigma (x^2_i - \bar {x^2})(y_i - \bar {y})[/tex]
Solving using an online quadratic regression calculator, gives;
A = 2.5643259
B = 246.6374865
C = -15.41986006
Substituting gives;
y = 2.5643259 + 246.6374865·x -15.41986006·x²
When time, x = 12.1, we have;
y = 2.5643259 + 246.6374865×12.1 -15.41986006×12.1²≈ 729.2562 feet
The height at time of 12.1 seconds ≈ 729.2562 feet.
