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3 years ago

Which equation has a constant of proportionality equal to 4

Mathematics

1 answer:

Oksana_A [137]3 years ago

6 0

D

3y=12x
y=4x
the constant is 4 which answers your question

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At south side middle school 20% of the students play an instrument . There are 305 students . How many students play an instrume

bulgar [2K]

That's 20% of 305.
You could set up the problem as a ratio.
20 x
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100 305

100x = 6100
x = 61

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4 years ago

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Samuel orders four DVDs from an online music store. Each DVD costs $10.00. He has a 20% discount code, and sale tax is 6.75%. Wh

Mars2501 [29]

Answer:

$34.40

Step-by-step explanation:

this equation has 3 steps

1. to find out how much the dvds cost without any discount or tax: $40

2. the price of the dvds with the 20% discount, which can be found with cross-multiplication making the price after discount $32

3. the final price of the dvds with sales tax can be found also with cross-multiplication and the final answer would be 34.4

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3 years ago

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Maya reads 1/8 of a newspaper in 1/28 of a minute.how many minutes does she need to read an entire paper

zepelin [54]

8/20 of a minute or 2/5 of a minute

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3 years ago

A store owner uses a selling price of 125% of the cost of an item. If a pair of jeans has a sales price of $52.50, what cost doe

IgorC [24]

Answer:

The cost store owner pay for the pair of jeans is $42.

Step-by-step explanation:

Given:

A store owner uses a selling price of 125% of the cost of an item.

If a pair of jeans has a sales price of $52.50.

Now, to find the cost price of the store owner pay for the pair of jeans.

Let the cost price of jeans be $x.$

Sell price of jeans = $\$52.50.$

Now, to get the cost price of store owner pay for the pair of jeans:

As given the store owner uses a selling price of 125% of the cost of an item.

According to question:

$125\%\ of\ x=52.50$

$\frac{125}{100} \times x=52.50$

$1.25x=52.50$

Dividing both sides by 1.25 we get:

$x=42.$

The cost price of jeans = $42.

Therefore, the cost store owner pay for the pair of jeans is $42.

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3 years ago

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you literally just need to add a single letter. You need to place the letters “t” and “r” to the word “shore”. After you do that, the word becomes “shorter”. Another possible answer is the word “Sorte”.

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3 years ago

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