If you meant to write this;Nisha and Marcie Drive 20 miles from their sisters to hoodoo to go skiing. The speed limit is 55 miles per hour. It snowed all night, and the safe speed to drive is 40 miles per hour. Explain how you can determine how many more minutes it takes to drive 20 miles at 40 miles per hour in a 55 miles per hour zone.
If you drive 20 miles at 40 mile per hour, then 20 miles divided by 40 miles equals .5.5 times 60 minutes (one hour) is 30 minutesIf you drive 20 miles at 55 mile per hour, then 20 miles divided by 55 miles equals .3636.3636 time 60 minutes (one hour) is 21.8 minutes30 minutes at 40 mph minus 21.8 minutes at 55 mph is 8.2 minutes faster
Answer:
-8/5
Step-by-step explanation:
convert the expression:-4/5 *2
multiply the fractions: -4/5 *2/1 (multiply across)
the you will get -8/5
Answer:
Step-by-step explanation:
<u><em>The correct question is</em></u>
A cylinder has a base with a diameter of 10.8 centimeters and height 15 centimeters. Enter the volume of the cylinder, in cubic centimeters. Round your answer to the nearest hundredth
we know that
The volume of a cylinder is equal to
where
----> the radius is half the diameter
assume
substitute
Answer:
47 rows
Step-by-step explanation:
To find the amount of needed rows, we will use the math operation division. We will take the total and divide it by the amount in each row.
846/18=47
To seat 18 people in each row, you will need 47 rows.
