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Oduvanchick [21]
2 years ago
15

Y +3 = x 3x + 4y = 16

Mathematics
1 answer:
iragen [17]2 years ago
5 0

Step-by-step explanation:

y+3=x

or 0=x-y-3... ans

3x+4y=16

or, 3x+4y-16=0 answer.......

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Find the value of the expression 4a^4 − 2b^2 + 40 when a = 2 and b = 7
Effectus [21]

Answer:6

Step-by-step explanation:

4(2)^4 − 2(7)^2 + 40

4(16)-2(7)^2+40

64-2(49)+40

64-98+40

-34+40

6

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3 years ago
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Solve 4 | x + 7 |= 24.
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Step-by-step explanation:

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Sue buys 5 pieces of fabric.Each piece is 1 7/10 yards long.What is the total length of the fabric she buys?One yard of the fabr
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Answer:

1. 8.5 yards.

2. $42.5

Step-by-step explanation:  

We have been given that Sue buys 5 pieces of fabric. Each piece is 1\frac{7}{10} yards long.

1. To find the total length of fabric bought by Sue we will multiply length of each fabric piece by 5.

\text{Total length of the fabric}=5\times 1\frac{7}{10}\text{ yards}

\text{Total length of the fabric}=5\times \frac{17}{10}\text{ yards}

\text{Total length of the fabric}=\frac{17}{2}\text{ yards}

\text{Total length of the fabric}=8.5\text{ yards}

Therefore, Sue bought 8.5 yards of fabric.

2. 1 yard of fabric costs $5.

So 8.5 yards of fabric will cost : 5*8.5

\text{Total cost of the fabric}=5\times 8.5

\text{Total cost of the fabric}=42.5

Therefore, the cost of total fabric bought by Sue is $42.5.

8 0
3 years ago
Kermit's favorite iced tea is made with 15 tea bags in every 2 liters of water. Peggy made a 12-liter batch of iced tea with 90
AlladinOne [14]
It is just right

Tea. 15. 90.
——- = —— = ———-
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Calculate the difference. 0.9 − 0.245 *
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Here is a picture with the answer.

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2 years ago
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