Why people made up ratios?

Is it more difficult to run up a ramp with a slope of 15 or a ramp with a slope of 5? Explain.

A turtle is 30 5/6 inches below the surface of a pond. It dives to a depth of 32 1/4 inches. How far did it dive

You borrowed $25 from your friend. You paid him back in full after 6 months. He charged $2 for interest. What was the annual simple interest rate that he charged you?

What is the domain restriction that will allow you to find an inverse of the function f (x) = 3 (x - 9) 2 + 4?

Billy had 24 trading cards. he gave 7 of his cards to miko and 9 of his cards to teri. what fraction of his original cards does billy have left. write two equivalent fractions for that amount.

1 1/3 - 3 3/4 1.3 1/4 2.3 4/9 3.5 1/4 4.5

Amount sugar in a candy bar decreased by 6.7% to 3.2 grams how much sugar wascin the candy before the decrease?

Two mechanics worked on a car. The first mechanic charged $85 per hour, andthe second mechanic charged $70 per hour. The mechanics worked for a combinedtotal of 20 hours, and together they charged a total of $1625. How long did each mechanic work?

Which fraction is bigger 1 1/6 or 1 4/12

Five random numbers for mean, median, mode, and range