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k0ka [10]
3 years ago
5

Tina bought some nail polish and lip gloss at the store. The nail polish cost $4.50 per bottle and lipgloss cost $7 per tube. Ti

na bought 9 items and spent
$50.50 how many of each item did she buy?
Mathematics
1 answer:
miskamm [114]3 years ago
5 0
Assume all items are Lipgloss
Total Cost -> $7 x 9 = $63
difference-> $63-$50.50= $12.50
Assume that all were Lipgloss except for one item
Total Cost-> ($7x8)+$4.50= $60.50
diff-> $63-$60.50=$2.50
Number of Nail Polishes-> $12.50 diveded by $2.50 = 5
Number of Lipglosses-> 9-5=4
ANSWER:
Lipglosses:4
Nail Polishes :5
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Elenna [48]
Sean reads his book by what speed
This answer is quite unorthodox
LIke a speed question. We will find the amount of pages Sean read per hour or minutes if u want to convert

So speed of reading = amount of pages read/ time
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So time taken to complete his book at the same pace he is reading 
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3 years ago
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balandron [24]
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3 years ago
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You want to surround the perimeter of a garden with 35 stones. You need to place a certain number of large and small stones, and
murzikaleks [220]

Answer: A) x + 4x = 35;  7 large stones and 28 small stones

======================================================

Explanation:

x = number of large stones

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x+4x = 35 is the equation to solve

-----------

Let's isolate x

x+4x = 35

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x = 35/5

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4x = 4*7 = 28 small stones are needed

8 0
3 years ago
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3 years ago
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