Sherrys family is going to a beach resort. sherry bought 7 beach towels that cost $13 each to take to the resort. to find the total cost, she added products of 7x10 and 7x3, for a total of $91. what property did sherry use?

7 × 13 = 7 × (10 + 3) = 7 × 10 + 7 × 3 {By distributive property}

Step-by-step explanation:

Sherry bought 7 beach towels that cost $13 each to take to the beach resort.

So, the total cost can be obtained by multiplying 7 with 13 which equals to $91.

But she obtained the total cost differently. She added products of 7 × 10 and 7 × 3 and got the same answer $91.

Basically she had used the distributive property of multiplication that made the result equal.

Because, 7 × 13 = 7 × (10 + 3) = 7 × 10 + 7 × 3 {By distributive property}. (Answer)

x=-2

step-by-step explanation:

i began by flipping the problem to give me x= on the left (keeps it clearer for me).   so my problem simply became 10x-3=4x-6.  

1)   subtract 4x from the right side, which equals 0.   you do the same to the left of the equal as the right; therefore, subtract 4x from 10x, leaving 6x on the left.

              10x-3=4x-6   :   4x-4x on the right leaves only the -6        

2)             6x-3= 0-6 :    

                6x+3=   -6

3) divide