Answer:
The original price of the book was $12.50
Step-by-step explanation:
3x - 0.2(3x) + 10 = 40
30x - 2(3x) + 100 = 400
30x - 6x + 100 = 400
24x + 100 = 400
24x = 300
x = 12.50
Using proportions, it is found that the family would spend $36.75 on clothing.
<h3>What is a proportion?</h3>
A proportion is a fraction of a total amount, and the measures are related using a rule of three.
The family has a budget of $525, and spends 7% of it in clothing, hence the amount is given by:
A = 0.07 x 525 = $36.75.
More can be learned about proportions at brainly.com/question/24372153
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Answer:
$9.6
Step-by-step explanation:
The computation of the price of the mixture is shown below:
The price of candy is
= 3 lbs × $1.7 per pound
= $5.1
And for other the price is
= 5 × 0.90
= $4.5
So, the total price of the mixture be
= $5.1 + $4.5
= $9.6
