2c : 3c = 60
5c = 60
c = 12
Fred will need 24 cups of peaches to make 60 cups of fruit salad.
Answer:
The answer is x = 3
Step-by-step explanation:
5x + 9 = 24
5x +9 -9 = 24 - 9
5x = 15
x = 15/5 = 3
Therefore, x = 3
Kelly multiplied 5 to each side when she solved for x, which is incorrect.
When solving two step equations you must solve one part of the equation so that you can solve the second part.
In one step equations you can just solve the equation as is.
To know how much money per gallon for part 1), just divide the amount by
the gallons, say 23.79/7.1 and check which one came out the cheapest
My teacher always told me: use the percent change formula!!!
Here it is: new value-old value/ old value * 100%
This strategy will ALWAYS work for percent increase AND decrease: let's try it on this problem!
56700-42000/42000 * 100%
14,700/42000 = 100(x)
100* 14700 = 1470000
1470000/42000= 35
35/100 = 35%
Therfore, our percent increase is 35%!