Answer:
Step-by-step explanation:
Question 3
5 (k + 4) - 2k
Use distributive property of multiplication.
5k + 20 -2k
Combine like terms to get your answer.
3k +20
Question 4
2 (3 + d - 1)
Simplify the expression in the parenthesis.
2 (2 + d)
Use distributive property of multiplication.
4 + 2d
If you wanted it to be accepted at higher levels, switch the terms around.
2d + 4
The answer is 9.
5^2=25. 1^5=1. 2^4=16.
Hope it helps :)
Answer:
x = 409.5
Step-by-step explanation:
Answer:
- Perimeter: 7.8
- Area: 3.1
Step-by-step explanation:
- Perimeter = all sides added up together
- 2.8 + 2.8 + 1.1 + 1.1 = 7.8
- Area = L × W
- 2.8 × 1.1 = 3.08
- Round 3.08 to the nearest tenth: 3.08 → 3.1
I hope this helps!
For this case, the first thing we must do is define a variable.
We have then:
p: rate in miles per hour for the last 1.5 hours
We now write the equation that models the problem.
We have then:

Rewriting we have:

From here, we clear the value of p.
We have then:
Answer:
DeAngelo's rate for the last 1.5 hours of his run is 7 miles per hour.