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slavikrds [6]
3 years ago
6

A company makes wax candles shaped like rectangular prisms. Each candle is 4 cm long, 3 cm wide, and 10 cm tall. If the company

used 4080 cm of wax, how many candles did they make?
Mathematics
1 answer:
MatroZZZ [7]3 years ago
6 0

Answer:

34

Step-by-step explanation:

You can solve this problem by finding the volume of the candle first. The formula for rectangular prism is multiplying all three of its dimension. In this case, you would multiply 3, 10, and 4 together to get 120 cm^3. Assuming the question meant "the company used 4080 cm^3 of wax", divide 4080 by 120 to see the number of candles the company made, which is 34.

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The current in a stream moves at a rate of 7 mph. If a boat travels 98 miles downstream in the same time that it takes to travel
JulijaS [17]

If the current in a stream moves at a rate of 7 mph. If a boat travels 98 miles downstream in the same time that it takes to travel 49 miles upstream then the speed of the boat in still water is 21 miles per hour.

<h3>What is speed?</h3>

Speed is the distance covered by an object in a certain time period. It is also known as velocity. The formula of speed is as follows:

Speed=Distance/ Time.

<h3>How to calculate speed?</h3>

We have been given that the speed of stream is 7miles per hour.

Let v be the speed of the boat, and t the time to travel

98=t*(7+v) (1)

49=t(v-7) (2)

(1)+(2) => 2tv=147

7t+(49+7t)=98

14t+49=98

14t=49

t=49/14

t=7/2

Put the value of t in equation 1 to get the value of v:

98=t(7+v)

98=7/2(7+v)

196/7=7+v

28=7+v

v=28-7

v=21

Hence if the current in a stream moves at a rate of 7 mph. If a boat travels 98 miles downstream in the same time that it takes to travel 49 miles upstream then the speed of the boat in still water is 21 miles per hour.

Learn more about speed at brainly.com/question/4931057

#SPJ2

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Simplify the Ratio<br><br> 250: 550
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Find the value of this expression if x = 4.<br> X^2-8 / x-6
Misha Larkins [42]

Answer:

the answer is -4

Step-by-step explanation:

x^2 is 16

16-8=8 for the numerator

4-6= -2 for the denominator

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What is 65.2 minus 47.3
Shalnov [3]
The answer for that question is 17.9.
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What is wrong with the set listed below?<br><br> D = { m , a , t , h , e , m , a , t }
seropon [69]

Answer:

You cannot write same elements in a set.

Step-by-step explanation:

In Set Theory, you cannot write same elements in a set.

<u>E</u><u>x</u><u>a</u><u>m</u><u>p</u><u>l</u><u>e</u><u>s</u>

A = {1,1} is not correct; the correct is A = {1}

B = {a,a,b,b,c,c} is not correct; the correct is B = {a,b,c}

———

See for D = {m,a,t,h,e,m,a,t}

There are same m's, a's and t's.

The correct should be D = {m,a,t,h,e}

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