To get the unit to equal 1, divide both numbers by the denominator; your answer is the number you get by dividing the numerator by the denominator. Use this method to calculate unit cost, too—you're calculating how much 1 item is worth, after you're given the amount that multiple items cost.

7 0

3 years ago

A "Local" train leaves a station and runs at an average rate of 35 mph. An hour and a half later an "Express" train leaves the s

Phantasy [73]

Hello,

Let's assume x the time the express runs.

56*x=35*(1.5+x)
==>21x=52.5

==>x=2.5 h =2 h 30 min

8 0

3 years ago

Read 2 more answers

The formula for the circumference of a circle is C = 2 pi r. Determine the circumference when the radius r is 10 cm.

liq [111]

Answer:

D 100cm