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Veseljchak [2.6K]

4 years ago

6

Please help on #18! thank you!

1 answer:

Scrat [10]4 years ago

4 0

the answer for #18 is c

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A college freshman started the year with $4000 in spending money and after three months, she has $2800 left. Assume that she wil

Nady [450]

To solve this question, you need to know the rate in which the money is being spent. First, you know the y-intercept, which is 4000, or the money she owned before spending it. Next, you know, how much she had spent in the duration of 3 months. So, if you substitute those numbers into y=ax+b, it would be 2800=-3a+4000 (or 2800=4000-3a either way it is equivalent) If you solve this, you know that the college freshman is spending her money at a rate of $400 per month. Hope this helps :)

3 0

3 years ago

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A store pays a manufacturer $20 for a hat. To make a profit, the store prices the hat 60% higher than the amount they paid. Late

Molodets [167]

Answer:

The clearance price is $17.28.

The clearance price will not give the store any profit.

Step-by-step explanation:

We have been given that a store pays a manufacturer $20 for a hat. To make a profit, the store prices the hat 60% higher than the amount they paid.

The price of the hat after increasing the price by 60% will be:

$\text{Price of the hat after an increase of 60\%}=20+(\frac{60}{100}*20)$

$\text{Price of the hat after an increase of 60\%}=20+(0.60*20)$

$\text{Price of the hat after an increase of 60\%}=20+12$

$\text{Price of the hat after an increase of 60\%}=32$

So, the price of hat after the increase of 60% will be $32.

As the sale reduces the price of hat by 10%, so the price of hat after sale will be:

$\text{Price of the hat after sale of 10\%}=32-(\frac{10}{100}*32)$

$\text{Price of the hat after sale of 10\%}=32-(0.10*32)$

$\text{Price of the hat after sale of 10\%}=32-3.2$

$\text{Price of the hat after sale of 10\%}=28.8$

So the price of hat after 10% sale will be $28.8.

As the clearance sale reduces the price by 40%, so price of hat after clearance sale will be 28.8 minus 40% of 28.8.

$\text{Price of the hat after clearance sale}=28.8-(\frac{40}{100}*28.8)$

$\text{Price of the hat after clearance sale}=28.8-(0.40*28.8)$

$\text{Price of the hat after clearance sale}=28.8-11.52$

$\text{Price of the hat after clearance sale}=17.28$

Therefore, the clearance price is $17.28.

As store has purchased the hat from manufacturer for $20 and sold it $17.28, therefore, the store will not have a profit.

7 0

3 years ago

Is the following graph proportional or non proportional?<br> PLS HELP:((

alexgriva [62]

It’s proportional because it goes through the origin

6 0

3 years ago

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Which of the following equations is of a parabola with a vertex at (4, 0)? y = ( x + 4) 2 y = x2 + 4 y = ( x - 4) 2 y = x2 - 4

lord [1]

Answer:

16 ×6=6 7+6 5 y = 2 + 4 y( 4. 8)y =14

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3 years ago

Which statement is a correct interpretation of the vertical line test? If only one vertical line intersects the graph at exactly

iogann1982 [59]

ITs D

If any vertical line intersects the graph at more than one point then its NOT a function.

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3 years ago