Answer:
15.4
Step-by-step explanation:
3(9+3⋅8)−23
3(12.8)-23
38.4-23
15.4
So the answer is15.4
Step-by-step explanation:
Given

7-7 (-8+x)=-14+4×
7+56-7x=-14+4x
63-7x=-14+4x
add 7x to both sides
63=-14+11x
add 14 to both sides
77=11x
divide both sides by 11
7=x
therefore 7 is x
Answer: 122 1/2 minutes
Step-by-step explanation:
I got this answer by first subtracting 5.25-3.50=1.75 and that was how many minutes it took per mile then I multiplied 1.75x70=122.50 to get my answer.
Answer:
6+12y
Step-by-step explanation:
first, distribute the 2 to the parenthesis:
-multiply the 2 to the 3 and 6y
We get 6+12y
hope this helps :)