Why do you have to multiply or divide both the numerator and denominator of a fraction to find an equivalent fraction

X + 5.1 = 19.2 - 5.1. - 5.1

If a function, f (x) is shifted to the left 4 unit (s), what function represents the transformation? a. f (x+4) b. f (x-4) c. f (x) - 4 d. f (x) + 4

Victor estimates that he will spend $175 on new video games he actually spent $225. what is the percent error? round to the nearest whole percent

If the starting time is 3:10am and the finishing time is 4:20am what is the elapsed time minutes

X-2.8=9.5 What does x equal?

A sphere has a volume of 32/3pi cubic units. What is the radius of the sphere?

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