Question

The question is.. "The expression 5(3r - 10) means the product of 5 and the difference of three times r minus 10. If r = 4, the value of the expression is [?] This is 6th grade math and im kinda stuck here

Answer 1

10

Explanation:

5(3r-10)

5(3(4)-10)

so forget the 5 and solve inside first

3*4= 12

12-10= 2

now bring the 5 back and multiply

5*2= 10

Answer 2

10

Explanation:

5(3r - 10)

Let r = 4

5(3*4 - 10)

5( 12 - 10)

5 (2)

10