s=p-0.15p represents the sale price s of an item with an original price p, after a 15% discount. Make a table to find the discou
1 answer:
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You can solve this by setting up a proportion. You can put the number of items correct over the total number. and substitute the unknown number with x.
= 
Cross-multiply
3400 = 100x Divide both sides by 100
34 = x
40 - 34 = 6
So, Jill got 6 questions wrong.
3400 = 100x Divide both sides by 100
34 = x
40 - 34 = 6
So, Jill got 6 questions wrong.
Given:
Total savings = $400
Ratio of savings of Blake and Josh = 3:1
To find:
The saving of each.
Solution:
Let the savings of Blake and Josh are 3x and x respectively.
According to the question,
Divide both sides by 4.
Now,
Savings of Blake = 3(100)=300
Savings of Josh =100
Therefore, the savings of Blake and Josh are $300 and $100 respectively.