1.5x + 7 = 20.5
First subtract 7 from both sides
1.5x = 13.5
Then divide both sides by 1.5
x = 9
Let me know in comments if you have questions
Answer:
it takes 11,600
Step-by-step explanation:
because a mile is 5,280 feet and both of you feet are moving the wheels and that should be multiplied by 2.
The correct answer is b lave flows from a volcano and piles up
Notice the picture below, see the length "l"?
well

solve for "w", to find the width,
what's the length? well, l = 11/4 w
Xy=30
x=6/11
6/11y=30
Divide by 6/11 on both sides
y=55