You start by figuring out how fast a lap is so you do
4.5 (4 1/2 miles)/3
=1.5 minutes
Which means it takes her 1.5 minutes to do 1/4 mile so you times that by four to get how long it takes her to run a mile
4x1.5
=6
This means it takes her 6 minutes to run a mile
To get this into miles per hour you divide 60 (because there’s 60 minutes in an hour) by 6 (her mile time)
60/6
=10
Therefore she is running 10 miles per hour
Answer:
x=4
Step-by-step explanation:
5x-x=15+1
4x÷4=16÷4
x=4
Answer: ![\bold{8\sqrt[5]{8} }](https://tex.z-dn.net/?f=%5Cbold%7B8%5Csqrt%5B5%5D%7B8%7D%20%7D)
<u>Step-by-step explanation:</u>
![64^{\frac{3}{5}}\\\\=2^{6(\frac{3}{5})}\\\\=2^{\frac{18}{5}}\\\\=2^{\frac{15}{5}}\cdot 2^{\frac{3}{5}}\\\\=2^3\cdot \sqrt[5]{2^3} \\\\=\boxed{8\sqrt[5]{8} }](https://tex.z-dn.net/?f=64%5E%7B%5Cfrac%7B3%7D%7B5%7D%7D%5C%5C%5C%5C%3D2%5E%7B6%28%5Cfrac%7B3%7D%7B5%7D%29%7D%5C%5C%5C%5C%3D2%5E%7B%5Cfrac%7B18%7D%7B5%7D%7D%5C%5C%5C%5C%3D2%5E%7B%5Cfrac%7B15%7D%7B5%7D%7D%5Ccdot%202%5E%7B%5Cfrac%7B3%7D%7B5%7D%7D%5C%5C%5C%5C%3D2%5E3%5Ccdot%20%5Csqrt%5B5%5D%7B2%5E3%7D%20%5C%5C%5C%5C%3D%5Cboxed%7B8%5Csqrt%5B5%5D%7B8%7D%20%7D)
Answer:
The correct answer is B. 3 ft, 6 ft, 5 ft
Step-by-step explanation:
A right triangle has side lengths that equal 90 degrees
3 x 6 x 5 = 90 ft.
Y = -7
x = -19
Steps:
Add the two equations together:
y - x + y + x = -14
2y = -14
y = -7
-7 + x = -26
x = -19
