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3 years ago

Paul is purchasing a dehumidifier for $162.75, including tax. He gives the

Mathematics

1 answer:

kow [346]3 years ago

4 0

Answer:

2.25$ or 2 singles & a quarter

Step-by-step explanation:

50+20+20+20+20+5+5+5+5+5+5+5=165

162.75-165=2.25

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Integer (-1) c (+5) =

LenKa [72]

-13.5914091423 is what I got from a calculator.

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If you borrow $100 for 3 years with an annual interest rate of 9% how much will you pay altogether.

arsen [322]

$100(1.09)^3=129.5029$ or $129.50

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For which scatterplot is the correlation strongest ?

PtichkaEL [24]

the second one? Step-by-step explanation:

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3 years ago

Solve 3v−8v+7v=24. I need help on this question in math

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Answer:

v=12

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3v-8v+7v=24

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3 years ago

Tickets to a concert cost $2 for children, $3 for teenagers and $5 for adults. When 570 people attended the concert, the total t

-Dominant- [34]

Let

x--------> the number of children

y------> the number of teenagers

z------> the number of adults

we know that

$2x+3y+5z=1,950$ ------> equation A

$x+y+z=570$ -----> equation B

$y=\frac{3}{4}x$

$x=\frac{4}{3}y$ -------> equation C

Substitute equation C in equation A and equation B

$2[\frac{4}{3}y]+3y+5z=1,950$

$\frac{17}{3}y+5z=1,950$ --------> equation D

$[\frac{4}{3}y]+y+z=570$

$\frac{7}{3}y+z=570$ --------> equation E

Multiply equation E by $-5$

$-\frac{35}{3}y-5z=-2,850$ --------> equation F

Adds equation D and equation F

$\frac{17}{3}y+5z=1,950\\\\-\frac{35}{3}y-5z=-2,850\\\\---------\\\\-\frac{18}{3}y=-900\\\\y=3*900/18\\\\y=150\ teenagers$

therefore

<u>the answer is the option</u>

$150\ teenagers$

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3 years ago

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