6 hours: 1 book
A unit rate is expressed as a quantity of one and shows how much is achieved in 1. In this case you get 6 hours from 1 book.
Hope this helps
Answer:
∠ BOC = 40°
Step-by-step explanation:
∠ AOC = 90° , then
5x + 2x + 20 = 90
7x + 20 = 90 ( subtract 20 from both sides )
7x = 70 ( divide both sides by 7 )
x = 10
Then
∠ BOC = 2x + 20 = 2(10) + 20 = 20 + 20 = 40°
Answer:
B.
D.
E.
Step-by-step explanation:
Answer:
Acetone
Step-by-step explanation:
An absolute value means that that value of whatever number you are trying to find the absolute value of will always be positive. For example, if you are trying to find the absolute value of acetone, you turn the negative into a positive, therefore the number would be 94, and you can see that 94 is a greater number than any of the other numbers in the table.
:)
Answer:
40 students
Step-by-step explanation:
We need a system of equations to find x or the students in advance:
2x + 4y = 800
x + y = 220
We can use substitution and isolate y in the second equation, which gives us y = 220 - x.
When we plug this into the first equation, we get 2x + 4(220 - x) = 800 and solving for x gives us x = 40.
