I need the process of the following problem: The area of each of two rectangles is 72 square cm. The lenghts and[..]

y varies jointly as x and z. y=32 when x=2 and z=8. Find y when x=3 and z=6.

If y varies inversely as x, and y=19 when x=3, find y when x=9

If y varies directly as x, and y=5 when x=3, find y when x=18

A rectangular painting measures 13 inches by 17 inches and contains a frame of uniform width around the four edges.[..]

The length of a new rectangular playing field is 7 yards longer than double the width. If the perimeter of the[..]

You invested $11,000 in two accounts paying 2% and 8% annual interest, respectively. If the total interest earned[..]

After a 75% reduction, you purchase a new soft drink machine on sale for $200. What was the original price of the[..]

Jesse invested $2000 more in stocks than in bonds. The bonds paid 7.2% interest and the stocks paid 6%. The income[..]

Bruce invested in stock paying a 10.5% dividend. Maya invested $4,000 more than Bruce in tax-free bonds paying 7.5%[..]