Newborn twins fall asleep at 8:00 P. M. The first twin wakes up every 60 minutes, then goes back to sleep. The second twin wakes up every 80 minutes. How long after 8:00 P. M. do both twins wake up at the same time?

What is 6dm in a fraction

Martin and his sister started a new tutoring business. They rent an office for $760 per month and charge $120 per student per month. Write an equation to represent the monthly profit they make for tutoring x students.

Lets run 1/2 milebut i can only 3/6mile

Two workers are each going to sew buttons on 10 shirts. How many buttons will they need in total?

Anthony's math scores for the quarter are 90, 91, 72, 91, 92, 92, 92, 91, 90, 90, and 91. Which measure of central tendency best represents Anthony's grade?

Which of the following illustrates the truth value of the given statements? 5.3 = 15 or 7 + 5 = 20

18 thousands equals Renaming numbers

The length of a rectangle is 6 cm more that it's width. If the area of the rectangle is 27 cm^2, find the dimensions of the rectangle.

If f (a. b) = f (a) + f (b) and f (2) = 3, then f (32) equals how can we get 15 after this f (16) = f (8) + f (2) + f (2) ? what's the next step?

How is 9644 divided by 4