Answer:
Step-by-step explanation:
m= slope
c= y intercept
therefore,
m=-35
c=-2
It means 3 multiplied by 4
This is a trial problem where you have to guess and check.
An easy way is to split 321 the closest to a half which can be 161 or 160
If we add 5 to one one (166) is it 5 more than the other? (321 - 166 = 155) So, no.
Let's make the number 163. Is it 5 more than the other? (321 - 163 = 158)
They are 5 away from each other which means we can use 163 for the amount of girls
There are 163 girls
Divide 430 by 75 to get 1% of the price.
430 / 75 = 5.733333...
Multiply that answer by 100 to get the original price.
5.73333... x 100 = 573.3333...
That will be your answer.
To double check your work, you can multiply 573.333... by 75 to see if the number in the problem (which was 75% of the original price) matches.
573.3333... x 75 = 430.
Hope that helped! :)