The correct equation would be d=40h.
You can test this out by substituting the number of hours into h to find d.
Ex.
h=3 hours
d=40h
d=40(3)
d=120 (this matches up with the distance given in the table for 3 hours
Hope this helps!! :)
36/40=0.9 so the percentage would be 9%
Hope this helped!
Combine like terms:
subtract x from both sides to get
2x+5=14
subtract 5
2x=9
isolate x:
divide 2 from both sides to isolate x
x=9/2
that's your final answer. unless your teacher wants you to put it in decimal form in which all you do is divide 9÷2.
2 x 18 = 36
5 x 18 = 90
36 + 90 = 126
the coach should order 126 rolls of tape
7/8 of an hour is 52.5 minutes. 3/10 of 52.5 minutes is 15.75 minutes. They spent 15.75 minutes warming up and cooling down.