Simplificando a expressão (3x^2 + 5x - 2) + (x^2 - 2x - 1) , vamos obter :
1 answer:
You might be interested in
Martin will earn $350 for 28 hours of work.
Step-by-step explanation:
Given,
Amount earned in 7 hours = $87.50
Ratio of time to amount earned = 7:87.50
Let,
x be the amount earned in 28 hours.
Ratio of time to amount earned = 28:x
Using proportion;
Ratio of time to amount earned :: Ratio of time to amount earned
Product of mean = Product of extreme
Dividing both sides by 7
Martin will earn $350 for 28 hours of work.
Keywords: ratio, proportion
Learn more about proportion at:
#LearnwithBrainly