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saul85 [17]
3 years ago
12

Joey Chestnut can eat 3 hotdogs in 25 seconds. How many can he eat in a minute? How many can he eat in 10 minutes?

Mathematics
1 answer:
statuscvo [17]3 years ago
3 0
First divide 60 by 25. 
60/25 = 2.4
Then multiple 2.4 and 3 to find how many hotdogs Joey can eat in a minute (60 seconds).
2.4*3 = 7.2
The answer must be rounded down as he hasn't completed his 8th hotdog yet, so Joey can eat 7 full hotdogs in a minute. 
To find how many he can eat in 10 minutes, multiply 7.2 by 10. 
10*7.2 = 72
Therefore, Joey can eat 72 hotdogs in 10 minutes. 
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Answer:

D

Step-by-step explanation:

For simplify the work we can start to factorise all the possibles expressions:

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8 is multiple of 2, so it can became

2(x+4)

x^2 - 16 this is a difference of two squares, so it can be rewritten as:

(x+4)(x-4)

x^2 + 8x + 16

we have to find two numbers whose sum is 8 and whose product is 16

the two number are 4 and 4

it becames:

(x+4)(x+4)

x+ 4 can‘t be simplified

if we look at the expression, we can find that x-4 appears at the numerator so

x^2 - 16 must be at numerator

but the second factor (x+4) doesn’t appear, so has been simplified. This situation can be possible only in the D option

in fact

(x+4)(x-4)/2(x+4) * (x+4)/(x+4)(x+4)

it became

(x+4)(x-4)/2 * 1/(x+4)(x+4)

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4 0
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Answer:

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Step-by-step explanation:

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gavmur [86]

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Step-by-step explanation:

8 0
2 years ago
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julsineya [31]

Answer:

x = 8,

Step-by-step explanation:

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Multiply both sides by one over the coefficient of x:

\displaystyle \frac{1}{5} \times 40 = \frac{1}{5}\times 5\; x.

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8 0
3 years ago
Read 2 more answers
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