1. 21 peanuts per minute
2. 9 texts per minute
3. 28 pages per hour OR half a page per minute
4. The first option is the cheapest. You can find what one ounce costs for each barrel by dividing the cost by the total ounces.
Answer:
To work out the percentage, all you have to do is divide the first subject by the second and multiply that by 100%.
In other words,
=
= .
Step-by-step explanation:
Hope this helped!
First, make up some variables to represent the number of Girls and Boys in the choir.
B = number of boys
G = number of girls
You know that there are 4 times as many girls in the choir as boys. Therefore, the equation you can write is:
If you cross-multiply, then you get the simplified equation:
G = 4B
Intuitively this makes sense since if you multiplied the number of boys in the class by 4, that would be equal to the number of girls you have.
Now, we know that the total class size is 60. So girls plus boys equals 60:
G+B = 60
To solve the equation, replace the G in this equation with the replacement you found before, 4B.
G + B = 60 -->
4B + B = 60 -->
5B = 60 -->
B = 12
However, you are trying to find the number of girls, so plug the answer back into your equation.
G + B = 60 -->
G + 12 = 60 -->
G + 12 -12 = 60 - 12 -->
G = 48
The number of girls you have is 48.
The slope of the line is (or just 2) as it rises by 2 units and runs to the left by 1 unit.
between 30 and 50 is approximately 40