Answer:Add 44 liters blue
Step-by-step explanation:Mary has 20 liters of paint mixed white:blue in the ratio 2:3. So two fifths of that paint is white and three fifths is blue. So that's 8 liters white, 12 liters blue.
We want to add paint to get white:blue = 1:7. Clearly we need to add blue. We have our 8 liters of white, so we need a total of 7(8)=56 liters of blue. We already have 12, so we have to add 56-12=44 liters of blue paint:
Answer:
x = 
Step-by-step explanation:
I think you mean this : x = 
Answer:
X= 5
Step-by-step explanation:
The revenue generated will be $864 if 45 calculators are sold.
Step-by-step explanation:
Given,
Selling price of calculator = $19.20
Revenue generated = R = 19.2q
Where q represents the number of calculators sold.
If 45 calculators are sold, then
q = 45
Revenue generated = 
Revenue generated = $864
The revenue generated will be $864 if 45 calculators are sold.
Keywords: multiplication, revenue
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