Question

There are 15 plates in a kitchen cabinet. The diameter of each plate is either 7 inches or 12 inches. The diameter of all 15 plates combined is 140 inches. Which system of equations can be can be used to find the number of 7-inch plates, x, and the number of 12-inch plates, y, that are in the cabinet? A. x + y = 140 12x + 7y = 15 B. 7x + 12y = 140 7x + 12y = 15 C. x + y = 15 7x + 12y= 140 D. x + y = 15 12x + 7y= 140

whats the answers​

Answer 1

37 There are 15 plates in a kitchen cabinet. The diameter of each plate is either 7 inches or

Explanation:

12 inches. The diameter of all 15 plates combined is 140 inches.

Which system of equations can be used to find the number of 7-inch plates, x, and the

number of 12-inch plates, y, that are in the cabinet?

A

x + y = 140

12x + 7y = 15

B

7x +12y = 140

7x + 12y = 15

cx + y = 15

7x + 12y = 140

D

x + y = 15

12x + 7y = 140