Hello!
2(x + 9) = 4(x + 7) + 2
Distribute the 2
2x + 18 = 4(x + 7) + 2
Distribute the 4
2x + 18 = 4x + 28 + 2
Combine like terms
2x + 18 = 4x + 30
Subtract 18 from both sides
2x = 4x + 12
Subtract 4x from both sides
-2x = 12
Divide both sides by -2
x = -6
Where she did something different than me is her mistake
Hope this helps!
Answer:
x=9
Step-by-step explanation:
To solve for x, you can set up a proportion between the 2 triangles we see.
The small triangle can be written as
, and the large triangle can be written as
.
Set both proportions equal to each other.
![\frac{16}{20}=\frac{28}{2x+17}](https://tex.z-dn.net/?f=%5Cfrac%7B16%7D%7B20%7D%3D%5Cfrac%7B28%7D%7B2x%2B17%7D)
Cross multiply and solve for x.
![16(2x+17)=(28)(20)](https://tex.z-dn.net/?f=16%282x%2B17%29%3D%2828%29%2820%29)
32x+272=560
32x=288
x=9
The answer is 37 because you range the two numbers they give you by the 90 degree angle
350 words per page.
70 words per minute
It will take her 5 minutes to type 350 words. 70 x 5 = 350.
She has to write 15 pages.
350 words x 15 pages = 5250 words in total.
5250 words total ÷ 70 words per minute = 75 minutes.
Since 60 minutes is in 1 hour we're left with 15 extra minutes.
Therefore, it'll take her 1 hour and 15 minutes to type her research paper.
Answer:
4.2
Step-by-step explanation:
Hope it helps!!!!!!!