5*20=100, the answer would be 100 dots
It should be 54 because you half to divide 162 by 3
Answer:
7/8
Step-by-step explanation:
9/8 divide 9/7
Solution :
9/8 ÷ 9/7
= 9/8 x 7/9
= 63/72
= 7/8
Set up a ratio:
You drove 72 minutes and 100 km = 72/100
You want the number of minutes (x) to drive 150 km = x/150
Set the ratios to equal each other and solve for x:
72/100 = x/150
Cross multiply:
(72 * 150) = 100 * x)
Simplify:
10,800/100x
Divide both sides by 100:
x = 10800/100 = 108
This means it would take 108 minutes to drive 150 km.
Now subtract the time you have already driven to fin how much more you need:
180 - 72 = 36 more minutes.
