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Paha777 [63]
3 years ago
15

To make a quilt, a quilter is buying fabric in two colors, blue and green.

Mathematics
1 answer:
egoroff_w [7]3 years ago
3 0

Answer:

<h2>3.375yards of  blue fabric </h2><h2>6.125yards of  green fabric</h2>

Step-by-step explanation:

step one:

given data

blue fabric costs $9 a yard.

green fabric costs $13 a yard.

Let x represent the number of blue yards of fabric purchased and

let y represent the number of green yards of fabric purchased.

Step two:

The quilter needs at least 9.5 yards of fabric in total.

x+y>=9.5--------1

The quilter can spend up to $110 on fabric.

9x+13y<=110----2

from equation

x+y>=9.5

x=9.5-y

put x=9.5-y in equation 2 we have

9(9.5-y)+13y<=110----2

85.5-9y+13y=110

4y=110-85.5

4y=24.5

y=24.5/4

y=6.125

put y=6.125 in x=9.5-y to find x

x=9.5-6.125

x=3.375

Hence the quilt can purchase

3.375yards of  blue fabric

6.125yards of  green fabric

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Answer:

B

Step-by-step explanation:

All you have to basically do on this one is go backwards.

The beginning equation is 4x+4=12, so to first revesre the adding we are going to use 12, the product, and subtract 4 from it (since that is what was added).

12-4=8

Now you need to reverse the times 4, so to do that just divide instead because that is the invese of multiplication.

8/4=2

Now you have 2, which is the variable, x. To make sure this is right you can just put it into the equation and see if 4x2+4 is 12

Hope this helped!

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Viktor [21]

Just completed this question as of right now it’s was : “ a common ratio between 0 and 1


5 0
3 years ago
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5.The ratio of the age of a mother and her son is 5:2. If the
Andreyy89

Answer:

The age of mother is:

40 years

Step-by-step explanation:

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5 0
3 years ago
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icang [17]

Answer:

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Step-by-step explanation:

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vesna_86 [32]

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(√10-√2)²

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2 years ago
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