Answer:
Total number of cups in package are 2400.
Step-by-step explanation:
Given : An economy package of cups has 720 green cups.
And the green cups are 30% of the total package.
We have to find the number of total cups in the package.
Let the package contain x cups in total.
Given: green cups are 30% of the total package that is 30% of x,
Also , given package has 720 green cups.
Thus, 30% of x = 720
Solving for x, we have,
Thus, total number of cups in package are 2400.
<u><em>If the question is 1st image:-</em></u>
Second image contains answer.
I hope it helps.
For this case we have a system of two equations with two unknowns.
To solve, we equate both equations:
We have a quadratic equation of the form:
Where:
Its roots are given by:
We have two roots:
Thus, we look for the values of y, by substituting any of the equations:
Answer:
Option B
Answer:
First box - divide both by 2
Second box - subtract 8 by 6
last box - subtract x
He should earn $121.60 in 19 hours