When mary was born, she weighed 8 pounds. when she was 10 years old, she weighed 10 times as much. how much more did mary weigh when she was 10 years old than when she was born? use exercises 1–2 to answer the question.
1. drawapicture,’s weight, w, when she was 10 years old.

she is 80 pounds

Step-by-step explanation:

because 8×10 is 80

when she was 10 years old she was 80 pound

8×10=80

80-10=70

When she was 10 she weight 70 pounds more than when she was born.

the answer would be 1 1/72

step-by-step explanation:

you can rewrite the equation by separating the parts and then solving individually:

10-9=1

1/8 - 1/9=

find l c d and then combine:

1 1/72

168

step-by-step explanation:

first off, we know that he drove 3.5 hours at a rate of 48 mph.

knowing that, we want to see how many miles he drove all-together.

in this case, we can just multiply 48 by 3.5.

48 * 3.5 = 168