$2\dfrac{1}{4}x=8\dfrac{1}{2}\qquad\text{convert the mixed numbers to the improper fractions}\\\\\dfrac{2\cdot4+1}{4}x=\dfrac{8\cdot2+1}{2}\\\\\dfrac{9}{4}x=\dfrac{17}{2}\qquad\text{multiply both sides by 4}\\\\4\!\!\!\!\diagup^1\cdot\dfrac{9}{4\!\!\!\!\diagup_1}x=4\!\!\!\!\diagup^2\cdot\dfrac{17}{2\!\!\!\!\diagup_1}\\\\9x=(2)(17)\\\\9x=34\qquad\text{divide both sides by 9}\\\\x=\dfrac{34}{9}\\\\x=3\dfrac{7}{9}$

6 0

3 years ago

Two trains leave stations 252 miles apart at the same time and travel toward each other. One train travels at 60 miles per hour

DiKsa [7]

Just under 2 hours, or 140 miles in the first hour hope it helps.

5 0

3 years ago

Please help me on my composition of functions homework

OlgaM077 [116]

Hey! This seems kinda hard. I really wish i could help but i cant understand it. I would ask my sister who is a math teacher to help u out! Just give me a like and a thumbs up so i can earn points please!?

7 0

2 years ago