Answer:
C
Step-by-step explanation:
Add the like terms, the a's by themselves and b's by themselves.
8a+5a=13a
6b+2b=8b
so 13a+8b
C
Area of a parallelogram(A) = base(b) * height(h)
A = b * h
294 = b * 14.7
294 = 14.7b
Divide both sides by 14.7 to make b stand alone
So, it would be:
294/14.7 = 14.7b/14.7
20 = b
b = 20
7(x+3)
= 7x+ 7*3 (distributive property)
= 7x+ 21.
The final answer is 7x+21~
Answer: It will take the Dolphin 2 hours to swim 40 miles. The penguin will take 8 hours. The swordfish will take 2/3 of an hour, that is 40 minutes, to travel 40 miles.
Step-by-step explanation: Divide the given distance by the unit rate given:
40/20=2 hours
40/5=8 hours
40÷60= 2/3 hour
This is the reverse of the process described in the question.
If the dolphin takes 2 hours to swim 40 miles, what is its unit rate? x ÷ y = R 40 miles÷2 hours= 20 mph.
40 miles ÷ 2/3 hour
3/2 × 40 = 60 mph
I hope this helps.
Penny:3
Nickel:5
Dime:2
Quarter:6
Half dollar: 11
Total:27