Answer:
80
Step-by-step explanation:
320 divided by 8 is 40 and 40 x 2 is 80
Answer:
total capacity of tank = 250L
Portion of tank emptied = 3/4*250= 187.5L
water in tank = 250 - 187.5 =62.5L
Step-by-step explanation:
We can create a ratio and solve.

We then isolate for x and get 9
Answer:
They came to different conclusions because if you graph n+10 and 2n+3, eventually 2n+3 will surpass n+10 (see picture for diagram). Since they both plugged in different numbers for n, they received different answers to the question.