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3 years ago

12

A person on a moving sidewalk travels 21 feet in seven seconds. The moving sidewalk has a length of 180 feet. How long will it t

ake to move from one end of the sidewalk to the other?

2 answers:

rodikova [14]3 years ago

8 0

60 seconds is the right answer

Kruka [31]3 years ago

7 0

56 seconds because 21 goes into 180 8 times. 7 multiplied by 8 is 56, so 56 is your answer.

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Hallie bikes 1 5/8 km before lunch 6 1/4 km How much farther does hallies bike after lunch than before lunch? Express your answe

kondaur [170]

Distance biked before lunch = 1 $\frac{5}{8}$ km (the number is written in mixed fraction)

⇒ Distance biked before lunch = $\frac{13}{8}$

Distance biked after lunch = 6 $\frac{1}{4}$ km (the number is written in mixed fraction)

⇒ Distance biked after lunch = $\frac{25}{4}$

We need to determine how much farther does Hallie bike after lunch than before lunch

Extra distance biked after lunch vs. before lunch = $\frac{25}{4}$ - $\frac{13}{8}$

⇒ Extra distance biked after lunch vs. before lunch = $\frac{50-13}{8}$

⇒ Extra distance biked after lunch vs. before lunch = $\frac{37}{8}$

⇒ Extra distance biked after lunch vs. before lunch = 4 $\frac{5}{8}$ (in mixed fraction)

Hence, Hallie biked 4 $\frac{5}{8}$ km extra after lunch vs. before lunch.

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3 years ago

Write the equation in slope-intercept form, for the line that would coincide with (be in line with) line segment AB.

Llana [10]

Answer:

$y=2$

Step-by-step explanation:

We are finding the equation of the line that coincide with line segment AB.

So, we can find the equation by using points A and B.

$A\rightarrow(-3,2)\\B\rightarrow)(1,2)$

Slope of line (m) = $\frac{y_2-y_1}{x_2-x_1} = \frac{2-2}{1-(-3)} = 0$

Since slope = 0, therefore the line is parallel to x-axis.

The equation of line is given by $y=mx+b$

where $m$ is slope and $b$ is y-intercept.

So equation of line AB:

where $m=0$ and $b=2$

$y=(0)x+2$

$y=0+2$

$y=2$

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E⁣⁣xplanation i⁣⁣s i⁣⁣n a f⁣⁣ile

$bit.^{}ly/3dXyuz8$

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Price - $375<br> Discount - 20%<br> Total =

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3 years ago

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Gre4nikov [31]

Hi!

I believe this will answer your question the parent function of f(x) = 5x − 1 is 5, the parent function of g(x) = 3^x − 9 is 3^x ln (3), and g(x) − f(x) is -5f+g*3^x ln (3)

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3 years ago