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Travka [436]
3 years ago
12

How do I write each sum as a product of the gcf of 75 +90

Mathematics
2 answers:
vladimir1956 [14]3 years ago
8 0

Answer:

15(5+6)

Step-by-step explanation:

gcf of 75 +90

To find GCF lets break the numbers one by one

75 can be written as 5 times 5 times 3

90 can be written as 5 times 2 times 3 times 3

Now we look at the greatest common factor

Both numbers have 5 and 3 in common

So  GCF is 15

we take out 15 that is in common

15(5+6)

schepotkina [342]3 years ago
3 0
75=5*3*5
90=5*3*6

75+90=5*3(5+6)=5*3*11
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Ella has 0.5 lb of sugar. how much water should she add to make the following concentrations? Tell Ella how much syrup she will
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Answer:

For 50% syrup, add 0.5 lb of water for 1 lb of syrup; for 5% syrup, add 9.5 lb of water for 10 lb of syrup; for 75% syrup, add 0.17 lb of water for 0.67 lb of syrup; for 1.5% syrup, add 32.8 lb of water for 33.3 lb of syrup.

Step-by-step explanation:

Let x represent the amount of water added.  This means the total mass of the syrup is represented by 0.5+x.

To find percentages, we divide the part by the whole.  For a 50% syrup, we need the part (sugar) compared to the whole (sugar + water) to equal 50%, or 0.50:

Multiply both sides by 0.5+x:

Using the distributive property, we have

0.5 = 0.5(0.5)+0.5(x)

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Divide both sides by 0.5:

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Multiply both sides by 0.5+x:

Using the distributive property,

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Divide both sides by 0.75:

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