Answer:
y = -1 ?
Step-by-step explanation:
y+10= 18/2
y+10=9
y=9-10
y=-1
Answer:
2y+ 20=18
⇔2y=-2
⇔y=-1
⇒1/2y=1/2(-1)
=-1/2
Step-by-step explanation:
One number is 9 times a first number. A third number is 100 more than the first number. If the sum of the three numbers is 848, find the numbers
The three numbers are needed
Answer:
[tex]first \: no \: 9x \\ second \: numberx \\ third \: no9x + 100 \\ 9x + x + 9x + 100 = 848 \\ 19x + 100 = 848 \\ 19x = 848 - 100 \\ \\ 19x = 748 \\ \\ x = 39.4[/tex]
Step-by-step explanation:
9×+×+100+9×=848
19×+100=848
19×=848-100
19×=748
×=39.4
9×=354.6
9×+100=354.6+100=454.6
Plz help I am confused
what percentage of 85 is 15
Answer:
The answer to your question is 17.65
Answer: 17.65%
Step-by-step explanation:
X/100 = 15/85 (cross multiplication)
(100*15)/85 = 17.65%
(This helps: %/100 = is/of (cross multiplication)
there are 45 students in a speech contest. Yesterday, 2/3 of them have their speeches. Today, 3/5 of the remaining students give their speeches. How many students still haven't given their speeches?
Answer:6 students remaining
Step-by-step explanation:Multiply 2/3 *45 which equals 30. If 30 students gave their speech on the first day there are 15 students remaining. Then multiply 3/5 * 15 which equals 9. If 9 of the 15 remaining students gave their speech than 15-9= 6 students remaining.
What is the product? Enter your answer as a fraction, in simplified form, in the box. 38⋅(−36)
Answer:
-1368
Step-by-step explanation:
Use algebra to write an expression for each of the following without using the multiplication sign or the division sign. 3 more than the value of x
Step-by-step explanation:
3 more than the value of x
x+3
To
Ryan's Coffee shop earned $4,500
income last week. Expenses were
$4,900. What was Ryan's profit or loss for
the week?
help
The answer is, C 400 loss.
HELPPPP PLEASE!!
b/c =a ;c
Answer:
[tex] \frac{b}{c} = a \\ \\ ac = b \\ \\ c = \frac{b}{a} [/tex]
I hope I helped you^_^
Which of the following equations has exactly one solution?
2x + 3 – 6x=-4x – 3
3x + 12 – 9x = -11x + 12 + 5x
6x +9 - 8x = 2x + 9
7x + 3 – 8= 13x + 5 – 6x
Answer:
I belive I might be c not completely sure but pretty positive
What is the probability of reaching
into the bag and picking a blue marble,
and then drawing again (without
replacing the marble you picked the
first time) and picking a red marble?
Answer:
2/7 answer C. I have to make this answer longer I guess
Can someone answer this please
Answer:
43.6 mm²
Step-by-step explanation:
2^-5/-4^3
with work please
9514 1404 393
Answer:
-1/2048
Step-by-step explanation:
The Order of Operations tells you to evaluate each of the exponential expressions first. Then you do the division.
= (1/32) / (-64)
= -1/(32·64) = -1/2048
__
You can also rewrite the expression in terms of powers of 2.
2^-5/-4^3 = -1/((2^5)(2^2)^3) = -1/(2^5×2^6) = -1/2^11
= -1/2048
_____
The applicable rules of exponents are ...
a^-b = 1/a^b
(a^b)^c = a^(bc)
(a^b)(a^c) = a^(b+c)
4 = 2^2
2^5 = 32
4^3 = 64
Pls help me with these question pls!!!!!????
Answer:
Number one is only a function
Step-by-step explanation:
A function has all different x values, but if there are two of the same x values with different y values, that is not a function. It’s okay if there are two do the same x values- they just have to have the same y values.
Number one has all different x values
Number two has an x value with two different y values, therefore it is not a function
Number 3 has two of the same x values but with different y values, so it’s not a function
Number four is not a function because of the vertical line test. You pick a point on the line and draw a vertical line all the way through the line. If that point passes through any other points, that it is not a function. Number four doesn’t pass the vertical line test, so it’s not a function.
Solve the formula s=4pi r^2 for r
Answer:
The formula to find the surface area of a sphere is to take the radius of the sphere and square it and multiply that amount by pi and then multiply that by 4. This is written algebraically as S=4πr2, where S is the surface area, r is the radius, and the value of π is 3.14.
Sarah used a calculator to check her brother's math homework. When she tried to enter 15 into the calculator she found that the 5 key was broken. Write at least 3 number sentences that show how Sarah can show 15 on the calculator without using the 5 key
Answer: 8+7=
10+2+3=
7+7+1=
6+6+3
Step-by-step explanation:
Nah because what is this-
Jake tosses a coin and rolls a six-sided die. All of the following are possible outcomes EXCEPT: ___________
a. Tails, Three
b. Heads, Seven
c. Tails, One
d. Heads, Five
The integers from -3 to +3 can be used in the blanks below. which of these integers produces a positive, even integer for the expression?
-8/2+4 () -2 =
My daughter filled the paren with a 3, but I though the question asks for a positive, even integer.
Answer:
Plugging in 3 does in fact produce a positive, even integer.
Step-by-step explanation:
-8/2 + 4(3) - 2 = ?
-4 + 12 - 2 = ?
? = 6
Find the distance between X (-3,8) and Z (-5,1). Round to the nearest tenth if necessary.
9514 1404 393
Answer:
7.3
Step-by-step explanation:
The distance formula is used for this purpose.
d = √((x2 -x1)² +(y2 -y1)²)
d = √((-5-(-3))² +(1 -8)²) = √((-2)² +(-7)²) = √(4+49) = √53
d ≈ 7.28011 ≈ 7.3 . . . units
XZ ≈ 7.3
Answer:
the correct answer is 7.3 units
Step-by-step explanation:
If x is an odd integer and y is a negative, odd integer, the product of x and y must be
Is the square root of 7 greater or less then 14/5
Answer:
less then
Step-by-step explanation:
the square root of 7 is 2.64 and 14/5 is = 2.8
One of the legs of a right triangle measures 4 cm and the other leg measures 6 cm.
Find the measure of the hypotenuse. If necessary, round to the nearest tenth.
Answer:
7.2
Step-by-step explanation:
Carly sold 18 rolls of wrapping paper. That is 2 times as many rolls as Jasmine sold. How many rolls of wrapping paper did they sell together?
Answer:27Step-by-step explanation:
Answer:
54 rolls of wrapping paper
Step-by-step explanation:
Carly = 18 rolls
Jasmine = (18×2) = 36 rolls
18 + 36 = 54 rolls
Hope it helps :D
please help me answer this question.. am giving brainliest
Step-by-step explanation:
We are going to use the following properties of logarithms to solve this problem:
[tex]\log{\dfrac{a}{b}} = \log{a} - \log{b}[/tex]
and
[tex]\log{ab} = \log{a} + \log{b}[/tex]
So we can rewrite the given equation as
[tex]\log{2x^3} - \log{x} = \log{\left(\dfrac{2x^3}{x}\right)} = \log{2x^2}[/tex]
Also,
[tex]\log{16} + \log{x} = \log{(16x)}[/tex]
So we can write
[tex]\log{2x^2} = \log{(16x)}[/tex]
or eliminating the log symbols, we get
[tex]2x^2 = 16x[/tex]
The solutions for the equation above are
[tex]x = 8\:\text{and}\: 0[/tex]
please help me out here
Answer:
x = 4, x = -4
Step-by-step explanation:
4 x 4 = 16
-4 x -4 = 16
Rewrite the following integer 169 as a base and exponent without using an exponent of 1.
Step-by-step explanation:
169 = (13)²
169 is the square of 13.
Answer:
[tex] \sf 169 = (13^2)[/tex]
A park ranger hiked 3/4 mi to a lookout, another 5/7 mi to a bird's nest, and finally 5/14 mi to a campsite. How far did the park ranger hike?
Answer:
2 miles and 88 yards.
Step-by-step explanation:
4 has 2*2 as prime factors
5 is prime
10 has 2 and 5 as prime factors
Thus, the lowest common denominator will be 2*2*5
3/4=15/20
3/5=12/20
7/10=14/20
Now that we have three fractions with the same denominator, we can add the numerators
15+12+14=41
So 41/20ths
That’s 2 and 1/20th
So the final answer is 2 miles and 88 yards! :)
Kyle bought a sheet of lumber 8.7 feet long to build fence rails. He cut the strip into 3 equal pieces. How long is each piece?
Answer:
i believe its 2.9 feet. 2 feet 10 inches 51/64 of an inch
(x/5)+(y/2)=1
im wondering what the answer to this problem is
Not giving an anwser to this, but all problems like this. Use Math-way, its free and solves euqations like this automaticly.
Trey wrote a few steps to describe how carbon circulates between the atmosphere and living organisms. Step 1. Carbon enters the atmosphere as carbon dioxide from respiration and the burning of fossil fuels. Step 2. Plants absorb carbon dioxide in the air and use it to make their own food using photosynthesis. Step 3. Plant-eating animals consume the carbon stored in plants. If step 2 is removed, which statement best describes the effects of this missing step on the carbon cycle?
Answer:
Dead animals are buried and form fossil fuels, which produce carbon dioxide when burned.
When animals and plants are fossilized and buried under sediments, the higher pressure and temperatures turns them to oil, over time, that is mined and combusted for energy by humans. This plays a significant role in the carbon cycle.
The best statement describing the effects of missing step 2 in Trey's description of the circulation of carbon between the atmosphere and living organisms is: there will be too much carbon dioxide in the atmosphere.
Carbon dioxide in the atmosphere is mostly used by plants to create their food through the well-known process of photosynthesis.
Without step 2, carbon dioxide will not be absorbed by plants through photosynthesis. Therefore, the amount of carbon dioxide present in the air will be too much for other living things and animals. The side effects include:
increase in global warming unsavory increase in ozone depletion worsening global environmental disasterslack of fossil fuel.
Thus, step 2 is an indispensable, necessary, important, and life-saving process in the carbon cycle.
Read more about the carbon cycle at https://brainly.com/question/14337456
