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3 years ago

A skateboard was reduced in price from $50 to $40

1 answer:

5 0

I don’t know what you are looking for but if it is the percentage of how much it was reduced by or the discount percentage it is 20 percent off

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Please answer the question from the attachment.

ddd [48]

$\left\{\begin{array}{ccc}x-4y=27\\3x+y=24&|multiply\ both\ sides\ by\ 4\end{array}\right\\\\\underline{+\left\{\begin{array}{ccc}x-4y=27\\12x+4y=96\end{array}\right}\\.\ \ \ 13x=123\ \ \ |divide\ both\ sides\ by\ 13\\.\ \ \ \ \ x=\dfrac{123}{13}\\\\subtitute\ to\ 3x+y=24\\\\3\cdot\dfrac{123}{13}+y=24\\\\\dfrac{369}{13}+y=\dfrac{24\cdot13}{13}\ \ \ \ |subtract\ \dfrac{369}{13}\ from\ both\ sides\\\\y=\dfrac{312}{13}-\dfrac{369}{13}\\\\y=-\dfrac{57}{13}$

$\left\{\begin{array}{ccc}x=\dfrac{123}{13}\\\\y=-\dfrac{57}{13}\end{array}\right$

5 0

4 years ago

The mean of a population is 50 and the median is 40. which histogram is most likely for samples from this population?

I am Lyosha [343]

Since the mean is greater than the median, I'd expect the distribution curve to be skewed in the positive direction. In other words, there a few large outliers but fewer small outliers. It would be helpful if the answer choices were provided though.

5 0

3 years ago

Solve for x.<br> 5x - 3 = 12<br> x = 9/5<br> X=-9/5<br> x=3<br> O<br> x=-3

alex41 [277]

Answer:

$x=3$

Step-by-step explanation:

Given Equation:

$5x - 3 = 12$

Taking the terms of 'x' to one side and the constants terms to other side.

$5x=12+3$

$5x=15$

$x=\frac{15}{5}$

$x=3$

On solving the equation the value of 'x' is 3

5 0

3 years ago

8) Jennifer has a collection of 1,600 coins. Of the coins, 40% are dated

Kitty [74]

<h3>Answer: 400 (choice A)</h3>

==============================================

Explanation:

40% + 35% = 75% of the coins were either made before 1940, or made from 1940 to 1980. In other words, 75% of the coins were minted before 1980. This leaves 100% - 75% = 25% of the coins to being minted after 1980.

25% of 1600 = 0.25*1600 = 400 coins were made after 1980

4 0

3 years ago

Please help me and show <br> Work <br> Thank you

Luda [366]

Answer:

120

Step-by-step explanation:

7 0

4 years ago

A skateboard was reduced in price from $50 to $40​

A skateboard was reduced in price from $50 to $40