Astudent thinks 1/2 + 1/8 = 2/10. draw a fraction bar for each fraction, and explain why 2/10 cannot be the answer.

5/8

Step-by-step explanation: When we have to sum fractions, we need to find the commom denominator for both fractions. In this case is 8. Then, we change the fraction, according to the new denominator, mantaining the ratio.

This way, 1/2 = 4/8. The other one we do not to change because the denominator is already 8.

So, now 4/8 + 1/8 is 5/8. The picture attached shows the bars and it is possible to see that 2/10 is smaller than 1/2 and cannot be the final answer.

18.8 cubic inches.

step-by-step explanation:

volume of a cone = πr²h

r = 1.5 inches

h = 8 inches

pi = 3.14

volume of our cone = × 3.14 × 1.5² × 8 = 18.84 square inches

or equals to 18.8 square inches rounded up to nearest tenth.

yes the total will be same because in both of them the expression.is rearranged but their sign remains the same hence it hss just been shuffled