Question

♥♥Please Help♥♥
Teddy and Dani are tying bows on gift baskets. Teddy ties the bows at a rate of 76 bows per hour, and Dani ties the bows at a rate of 67 bows per hour. Which of the following equations can be used to find b, the total number of bows Teddy and Dani will tie on gift baskets in 4 hours?







A.

b = (76 + 67)4

B.

b = 76(4) + 67

C.

b = (76 + 67) ÷ 4

D.

b = 76(4) - 67(4)

Answer 1

It asks you the >total< number of bows tied in an hour from both of them. So will you add or subtract?

Answer 2

I think we will add

Answer 3

Correct

Answer 4

So which choice can we eliminate?

Answer 5

d

Answer 6

Good

Answer 7

Will we need to divide or multiply at the end?

Answer 8

Note that this problem involves time rates of change (76 bows per hour is a rate).
Example: John drives his car at 45 mph for 2.5 hours. How far does he drive during that period? Multiply the rate (45 mi/hr) by the number of hours (2.5 hr) to obtain the total distance he has driven. Now apply this same principle to your stated problem. How many bows can be tied in 4 hours at the rate of 76 bows/hr?

Answer 9

How many in 4 hours at the rate of 67 bows/hr?

Answer 10

I think the answer is a

Answer 11

You're correct. :)

Answer 12

Because you add their rates first, then you multiply that to 4 hours.

Answer 13

yay thank you and mathmale

Answer 14

np