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Svetradugi [14.3K]
3 years ago
14

Mike paid $13 for three books Diego bought 12 books price at the same rate how much did Diego pay for 12 bucks explain your reas

oning
Mathematics
2 answers:
dsp733 years ago
6 0

Answer:

<u>Diego paid $52 for 12 books.</u>

Step-by-step explanation:

If Mike bought 3 books for $13 that means that a book cost him $ 4.33

$ 13/3 = $ 4.33

And if Diego bought 12 books for the same price, how much did it cost?

An equation called "<em>Rule of 3</em>" is used:

1 book = $ 4.33

12 books = X

The X of the equation is cleared:

X = (12 books * $ 4.33) / 1

<u> X = $ 52 for the 12 books Diego bought.</u>

tensa zangetsu [6.8K]3 years ago
4 0
Well 13 /3 = 4.3333, that sure the cost for one book and the rate. so if he bought 12 books at the same rate, then its 12*4.33333. which equals 52 dollars
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3 years ago
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Answer:

Please specify what the three expressions are.

Step-by-step explanation:

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Then, by evaluating it, you would get:

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2 years ago
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Quadratic Equation Word Problem
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------------------------------------------------------
Define x :
------------------------------------------------------
Let the width be x.

------------------------------------------------------
Find Area of the walkway :
------------------------------------------------------
Area = 30x + 30x + 20x + 20x + 4x²       
Area = 100x + 4x²

------------------------------------------------------
Find cost of the walkway in term of x:
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1m² = $10
100x + 4x² = 10(4x² + 100x)
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Find Width of the walkway :
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The budget is $6000

40x² + 1000x = 6000
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x = 5 or x = -30 (Rejected, width cannot be negative)

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Answer: The width can be 5m wide.
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