Show Work! Kim puts 320 pennies into several different piles. She puts exactly 40 of the pennies into each of the piles, with no pennies left over. What is the total number of piles the pennies are put into? (A) 7 piles
(B) 8 piles
(C) 40 piles
(D) 280 piles

Jjutsclopyrsvnkiu it’s c

38+105= 143, 39+104=143, and you will find then adding the numbers on opposite sides, moving inwards yields the answer 138 every time. because of this, you’re going to multiply 138 times the number of pairs, which is 34. therefore, 34*138= 4692(i’m sorry if it’s the wrong numbers, but it’s the right concept)

The correct answer is 7