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3 years ago

11

Given that y varies directly with x in the table below, what is the value of y if the value of x is 7?

2 answers:

Black_prince [1.1K]3 years ago

6 0

Write out the governing equation:

y = kx.

Take any point from the given table. You haven't shared the table, so I will invent a point: (2, 9).

Then find k: k = 9/2 Then the equation becomes y = (9/2)x.

Now let x = 7 and find y: y = (9/2)(7) = 63/2

Answer: y = 63/2

Nat2105 [25]3 years ago

4 0

Answer:

B. 42

Hope this helps!

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4 years ago

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explain how you can determine if a triangle is a right triangle. (make it look like a middle schooler wrote it :) )

allsm [11]

Answer:

if one of the angles is 90°

Step-by-step explanation:

when it has an angle that is 90° that means that it is a right triangle

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3 years ago

abercrombie & Fitch is having a sale. The sign posted in the store says, "everything is marked down 65%." Scott buys a jacke

nikdorinn [45]

a) We have that the discount is 65 %

Scott buys a jacket for $150

First, we will calculate the discount

$150\times\frac{65}{100}=97.5$

then we need to subtract the quantity calculated above from the original price

$150-97.5=52.5$

After the markdown Scott paid $52.5

b.

In order to know the taxes first, we need to calculate the 5% of $52.5

$52.5\times\frac{5}{100}=2.625$

then we will sum the 5% plus the price after the markdown

$52.5+2.625=55.125$

The total cost of the jacket is $55.125

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1 year ago