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3 years ago

12

I bought 7 boxes of shotgun shells for $71 not counting sales tax. One type of shell costs $5 per box and the other costs $14 pe

r box. How many boxes of each did I buy?

1 answer:

IRINA_888 [86]3 years ago

7 0

Answer:

No Becky!

Step-by-step explanation:

ugh

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The cost of painting the total outside surface of a closed cylindrical tank at 60 paise per meter squae is Rs237.60. The height

valkas [14]

Answer:

$volume=509.25 dm^{3}$

Step-by-step explanation:

Curved surface area= $\frac {237.6}{0.6}=396 dm^{2}=2\pi R(R+H)$ where R is radius and H is height

Since H=6R then curved surface area= $2\pi R(R+6R)=14\pi R^{2}$

Therefore,

$396 dm^{2}=14\pi R^{2}$ and making R the subject

$R=\sqrt {\frac {396}{14\pi}}=\sqrt {(9.003622)}= 3.000604 m$

Therefore, H=6R=6*3.000604=18.00362 m

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2 years ago

We have 10 gallons of gas in the car. we use 1 5/8 gallons each hour. How many hours of gas do we have?

Andre45 [30]

So you have 10 gallons of gas
You use 1.625 or 1.63 an hour

You can either do 10/1.625 = 6 hours and 15 mins
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