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2 years ago

Anyone? Please I need help!!

Mathematics

1 answer:

JulsSmile [24]2 years ago

4 0

Answer:

the correct choice is marked

Step-by-step explanation:

Let x represent the smaller number. Then the larger number is 8x, and the difference is ...

8x -x = 280

7x = 280 . . . . . simplify

x = 40 . . . . . . divide by 7

The larger number is 8x = 8(40) = 320.

_____

<em>Additional comment</em>

Effectively, we have solved for the multiplier (40) that gives the ratio with 320 on top and a difference between top and bottom of 280:

$\dfrac{8}{1}=\dfrac{8\cdot40}{1\cdot40}=\dfrac{320}{40}$

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Answer:

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Step-by-step explanation:

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3 years ago

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4 years ago

7 line tshirt company manufactures t-shirts and sells them online.The company has a model where the cost C, in dollars to make x

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Answer:

The company must sell at least 2 shirts to break even.

Step-by-step explanation:

Cost:

The cost is given by the following equation:

$C = \frac{40}{30x+20} + 20 = \frac{4x}{3} + 20$

Revenue:

The revenue is given by the following equation:

$R = 15x$

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Breakeven point is when the revenue is the same as the costs. So

$\frac{4x}{3} + 20 = 15x$

$15x - \frac{4x}{3} = 20$

$\frac{45x}{3} - \frac{4x}{3} = 20$

Multiplying everything by 3

$45x - 4x = 60$

$41x = 60$

$x = \frac{60}{41} = 1,...$

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The company must sell at least 2 shirts to break even.

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7 0

3 years ago

A blender that normally costs $130 is on sale for 12% off. What is the final cost of the blender if there is also an 8% sales ta

polet [3.4K]

Answer:

$105.25

Step-by-step explanation:

First we need to know to price of the blender after the sale, so we are going to pay the 88% of the blender's price so the final price without the sale tax is going to be

$\$130\times .88=\$ 114.4$ (1)

Knowing this price we need to calculate the 8% of the total price

$\$ 114.4 \times .08=\$ 9.152$ (2)

We substract the result (2) from (1)

$\$ 114.4 - \$ 9.152 = 105.248$

Rounding this number to nearest cent the final result is:

$105.25

8 0

3 years ago