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Archy [21]
3 years ago
10

Can someone please explain how to find x and y I don’t understand this at all

Mathematics
1 answer:
Sloan [31]3 years ago
4 0

3y is the supplement of 141 so that means 3y+140=180 so y is 13.33. Since they give you 68, 68+13.33+x=180. So 81.33+x=180 and x=98.66.

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one-third of a number x is equal to 22 less than the number. Write and solve an equation to find the number.
Debora [2.8K]

1  \div 3x = 22 - x
3 0
3 years ago
The area of an artist's square canvas can hold 113 square inches of paint. What is the approximate length of one side of the can
xeze [42]
The area of any rectangle is:

A=xy, and a square is just a special rectangle where the two dimensions are equal.  x=y=s, where s is the side length so the area of a square is:

A=s^2  we want to solve for s so

s^2=A

s=√A, and we are told that the area is 113 in^2

s=√113 in

s≈10.63 in (to nearest hundredth of an inch)
5 0
3 years ago
Solve using substitution. <br> 7x-4y=-12<br> 9x-4y=-20
MrRissso [65]

Answer:y= -4

Step-by-step explanation:

1 Solve for xx in 7x-4y=-127x−4y=−12.

x=\frac{4(y-3)}{7}

x=

7

4(y−3)

​

2 Substitute x=\frac{4(y-3)}{7}x=

7

4(y−3)

​

 into 9x-4y=-209x−4y=−20.

\frac{36(y-3)}{7}-4y=-20

7

36(y−3)

​

−4y=−20

3 Solve for yy in \frac{36(y-3)}{7}-4y=-20

7

36(y−3)

​

−4y=−20.

y=-4

y=−4

4 Substitute y=-4y=−4 into x=\frac{4(y-3)}{7}x=

7

4(y−3)

​

.

x=-4

x=−4

5 Therefore,

\begin{aligned}&x=-4\\&y=-4\end{aligned}

​

 

x=−4

y=−4

​

3 0
3 years ago
What is 16,700,000,000,000,000 estimated as the product of a single digit and a power of 10?
True [87]
For short you call this scientific notation. 
FIRST
Count how many time you need to move the decimal over to make your single digit more then 1 and less then 10. So we will erase the 0's as we go along.
167000,000,000,000
So in this case we want to make the single digit 1.67 so it can be greater then 1 and less then 10
So now we see how many times we need to move the decimal and when you cant see the decimal just imagine it at the very end of the problem
167000,000,000,000
(For the mods out there I copied and pasted the bold number so i didn't have to take a while to retype the whole number. Thanks.)
SO NOW I get 14 because that's how many spots the decimal moved over.
Now since we need to right it in SN we need to write out this
X*10^X
The exponent X stands for how many times we moved the decimal over. I got 14 so we have that exponent
X*10^14
NOW We need to fiqure out X.... X was just the number we made greater then one and less then 0.
So thats 1.67
So we get
1.67*10^14

Did this help? <3
4 0
3 years ago
This is taking forever to find out
frosja888 [35]

Answer:

What is

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
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