Answer:
b = 0
Step-by-step explanation:
4b + 6 = 2 - b + 4
4b + b = 2 + 4 - 6
5b = 6 - 6
5b = 0
b = 0 / 5
b = 0
Answer:
0.1 km
Step-by-step explanation:
The car travels 60 km in 1 hour.
It stops in 6 seconds.
6 seconds = 1/600 hour
60 × 1/600 = 1/10
The car travelled 0.1 kilometers.
The car travelled 0.1 kilometers in 6 seconds.
Answer:
3-1=2
Step-by-step explanation:
Answer:-20
Step-by-step explanation:
Answer:
a. 80.25
b. 104
Step-by-step explanation:
For (a), you add all the numbers together and divide by 4 because there are 4 test scores.
87 + 92 + 63 + 79 ÷ 5 = 80.25
For (b), we need to set up an equation. It is going to be a similar concept.
87 + 92 + 63 + 79 + x ÷ 5 = 85
x = 104
Hope this helps!