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GarryVolchara [31]

2 years ago

7

A person on a moving sidewalk travels 6 feet in 3 seconds. The moving sidewalk has a length of 80 feet. How long will it take to

move from one end to the other?

1 answer:

tekilochka [14]2 years ago

5 0

Answer:

40.5 seconds

Step-by-step explanation:

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Simply the expression 7y+4x+4-2x+8

lisabon 2012 [21]

Simplified: 2x+ 7y + 12

3 0

3 years ago

Help me please i dont understand this question..

stich3 [128]

5x6 = 30 divided in half because its a triangle
=15

2x3 = 6

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4 0

3 years ago

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What % could i make 2/5 of a hour? like 10% of a hour. like that.

yarga [219]

well, we can say that 1 hour is 100%, what is 2/5 hr off of it in percentage?

$\begin{array}{ccll} hour&\%\\ \cline{1-2} 1 & 100\\ \frac{2}{5}& x \end{array} \implies \cfrac{1}{~~ \frac{2}{5}~~}=\cfrac{100}{x}\implies \cfrac{5}{2}=\cfrac{100}{x} \\\\\\ 5x=200\implies x=\cfrac{200}{5}\implies x=40$

7 0

2 years ago

How many terms will the following expression have once it is simplified?

MA_775_DIABLO [31]

Answer:

B

Step-by-step explanation:

<em>Let's multiply this out and combine like terms:</em>

$3x(x+1)+x\\=3x^2+3x+x\\=3x^2+4x$

So there are 2 terms.

Answer choice B is right.

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3 years ago

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In a different plan for area codes, the first digit could be any number from 4 through 8, the second digit was either 3, 4, 5,

Snezhnost [94]

For the first digit, we have 5 options that are 4,5,6,7,8 . For the second digit, we have 4 options which are 3,4,5 or 6 and for the third digit, we have the options of all numbers except 2 or 5 that is 1,3,4,6,7,8,9,0 . SO we have 8 options for third digit . So to find the total number of options, we need to multiply all the possible options for each digit that is 5 times 4 times 8 = 160 . So the number of possible options are 160 .

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4 years ago