Heather has a combination of dimes and quarters in her piggy bank. If Heather has a total of 43 coins and the value the piggy bank is $7.60, how many of each coin does she have? Pick two equations the could be used to solve the problem!

A. .1x + .25y = 43
B. x + y = 90
E. .1x + .25y = 7.6
F. x - y = 51
G. x + y = 43

The volume of gas a balloon can hold varies directly as the cube of its radius. imagine a balloon with a radius of 3 inches can hold 81 cubic inches of gas. how many cubic inches of gas must be released to reduce the radius down to 2 inches?

Click an item in the list or group of pictures at the bottom of the problem and, holding the button down, drag it into the correct position in the answer box. release your mouse button when the item is place. if you change your mind, drag the item to the trashcan. click the trashcan to clear all your answers. solve this quadratic equation using the quadratic formula. 2x2 - 2x=1 need asap

This size running track is usually called a 400 meter track. however if a person ran as close to the inside as possible on the track they would run less than 400 meters in one lap. how far away from the inside border would someone have to run to make one lap equal exactly 400 meters