This is because if you make the 2 miles at 6 mph to 1 mile at 3 mph then you get 1 mile at 3mph and 1 mile at 12 mph. now that you have the unit rates of these you can add them. 1 + 1 = 2 miles and 3 + 12 = 15 mph now divide this by two and you get 7.5 mph per mile.

I hope this helped, if it did could you give me a good rating? lol

8 0

2 years ago

Tan weighs 146 pounds. Minh weighs 15 pounds more than Tan. How much does Minh weigh?

dimaraw [331]

Given parameters:

Weight of Tan = 146pounds

Unknown:

Weight of Minh = ?

Following this problem step wisely, we can derive a solvable algebraic equation;

Let the weight of Minh = M

In the second sentence, we see that Minh weighs 15pounds more than Tan;

So;

M = 15 + Weight of Tan

Since we already know the weight of Tan,

Weight of Minh = 15 + 146 = 161pounds

We clearly see that Minh's weight will be 161 pounds.

3 0

3 years ago

If you own 3 traditional IRAs and you are 58 years old, your combined pre-tax contributions may be____.

amm1812

1/2 would be the answer

5 0

3 years ago