2 years ago

Can someone pleaseee heelp mee:(

Mathematics

1 answer:

Valentin [98]2 years ago

3 0

Please mark as brainiest

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A store is having a sale in which all items are discounted 20%. Including tax , Jennifer paid $21 for a picture. if the sales ta

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Original price is $25. Hope this helps :D

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3 years ago

A store pays $22 for a duffel bag. The store marks up the price by

fredd [130]

Marks UP the price by 30%.

There's two ways:
30% of $22, plus $22.
OR
130% of $22.

To save time, 130% of 22.

130/100 x 22
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=13/5 x 11
=143/5
= 28.6

$28.6

Hope this helps!

7 0

2 years ago

A mother invests $7000 in a bank account at the time of her daughter's birth. The interest is 18) compounded quarterly at a rate

Alex

well, from birth to your twentieth birthday that'll just be 20 years, so

$~~~~~~ \textit{Compound Interest Earned Amount} \\\\ A=P\left(1+\frac{r}{n}\right)^{nt} \quad \begin{cases} A=\textit{accumulated amount}\\ P=\textit{original amount deposited}\dotfill &\$7000\\ r=rate\to 8\%\to \frac{8}{100}\dotfill &0.08\\ n= \begin{array}{llll} \textit{times it compounds per year}\\ \textit{quarterly, thus four} \end{array}\dotfill &4\\ t=years\dotfill &20 \end{cases} \\\\\\ A=7000\left(1+\frac{0.08}{4}\right)^{4\cdot 20}\implies A=7000(1.02)^{80}\implies A\approx 34128.07$

5 0

1 year ago

Can someone please help me with this

vovangra [49]

Answer:

y = 5

z = 55

Step-by-step explanation:

90 - 35 = 55

z = 55

7y = 35

$\frac{7y}{7} = \frac{35}{7}$

y= 5

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3 years ago

Write the equation y=-1/2x+3 in standard form. how do I do this?

Lapatulllka [165]

Standard form is ax + by = c. Begin our transformation by multiplying both sides by 2 to get rid of the fraction. Notice that ax + by = c does not allow for fractions. Doing that multiplication gives us 2y=-x + 3. Now move the x over by the y by addition. x + 2y = 3. And there you go!

7 0

3 years ago

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