3 years ago

Davids's bowling score is 5 less than 3 times Aarons score. The sum of their scores is 215. Find the score of each student.

Mathematics

1 answer:

Scilla [17]3 years ago

8 0

Answer:

David's bowling score is 100 and Aarons is 115

Step-by-step explanation:

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Carl is raising money for his football team. He is selling chocolate bars for $1.50 each and cookies for $2. He sold all 20 of h

stich3 [128]

Answer:

Carl has to sell at least $8$ cookies.

$c\geq 7.5$

Step-by-step explanation:

Carl gets $\$1.50$ by selling 1 chocolate bar.

Earning from chocolate bars:

$Total\ chocolate\ bar=20\\\\Earning\ from\ one\ chocolate\ bar=\$1.50\\\\Total\ earning\ from\ chocolate\ bar=Total\ chocolate\ bar\times cost\ of\ 1\ chocolate\ bar=20\times 1.5=\$30$

Earning From cookies:

$Let\ total\ number\ of\ cookies=c\\\\Cost\ of\ 1\ cookie=\$2\\\\Earning\ from\ cookies=2\times c=2c$

$Total\ earning=Earning\ from\ cookies+Earning\ from\ cookies+Earning\ from\ chocolate\ bars\\\\Total\ earning=30+2c$

Carl wants to raise at least $\$55$

$Total\ earning\geq 55\\\\2c+30\geq 55\\\\2c\geq 55-30\\\\2c\geq 15\\\\c\geq7.5$

7 0

3 years ago

Between 2005 and 2008, the average rate of inflation was about3.4 per year. If a cart of groceries cost $140 in 2005, what did i

Elan Coil [88]

The formula is
A=p (1+r)^t
A future value?
P current value 140
R rate of inflation 0.034
T time 2008-2005=3 years
A=140×(1+0.034)^(3)
A=154.77 round your answer to get
A=155

3 0

3 years ago

Ms. Houston's fifth grade class is going to A museum the class raises $68 for the trip transportation to the museum cost $40The

damaskus [11]

68-40=28
28/4=7
therefore, 7 is your answer
(Hope it helps my friend ^_^)

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4 years ago

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if one store has 360 items and another store has 100 of the same items, express the ratio of the items

choli [55]

360:100 or 360 to 100

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3 years ago

-3+3x=-2(x+1)<br> the 2 is a negative<br> please break it down

Veronika [31]

-3+3x=-2(x+1) First: I will get rid of the bracket:

-3+3x=-2x-2

Now, all the x goes to the left side, all the numbers without x to the right side:

3x+2x=-2+3

we add up"

5x=1

divide by 5:

$x= \frac{1}{5}$

7 0

3 years ago

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