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Rom4ik [11]
3 years ago
13

What is 30x + 40 factored

Mathematics
1 answer:
amm18123 years ago
8 0

Answer:

1 0 ( 3 + 4 )

Step-by-step explanation:

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a chef buys 5.46 pounds of ground turkey to make some casseroles. Each casserole requires 0.13 pound of turkey. How many cassero
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Simplify: 8^2 + 9(12 / 3*2) -7
Naily [24]

Answer:

357 / 2

Step-by-step explanation:

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A package of 25 wristbands cost $5.25. At this rate, what is the cost of 1 wristband in dollars and cents?
azamat

Answer:

$0.21

Step-by-step explanation:

We can set up a proportion. Say x is the cost of 1 wristband:

\frac{5.25}{25} =\frac{x}{1}

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Solving for x, we see that x = 0.21.

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3 years ago
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If y=15 when x=5, find y when x=7, given that y varies directly with x.
Oxana [17]

Answer:

when x = 7, y = 21

Step-by-step explanation:

This is about direct variation. If y varies directly with x, then there is a constant  factor of variation, k. The constant of variation can be found by ʸ⁄ₓ

k = ʸ⁄ₓ

k = ¹⁵⁄₅ = 3

Now that we have found k, we simply multiply x by it to find y (this is because y is directly proportional to x). We plug in our x = 7 to find y at this point.

y = 3x

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3 years ago
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