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MArishka [77]
3 years ago
7

Two authors came to read to an audience. Author A read at a rate of 153 words per minute. Author B read at a rate of 184 words p

er minute. If each author read 50 pages, with 300 words per page, how much longer did Author A read than Author B?
A.) 14 minutes and 57 seconds
B.) 15 minutes and 18 seconds
C.) 16 minutes and 31 seconds
D.) 17 minutes and 29 seconds
If you could provide an explanation on how you solved it, that would be wonderful.
Mathematics
1 answer:
Pachacha [2.7K]3 years ago
4 0
 it was b i think for how long they read
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3 years ago
Whats greater 1/2 or 2/5
Alchen [17]
Get a common denominator. 

1/2 = 5/10
2/5 = 4/10

1/2 is greater 
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3 years ago
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Hurry for Brainlist =Accurate Answer
cluponka [151]

Step-by-step explanation:

the second line has to be parallel (but not identical), so that the 2 lines do not cross each other, do not have any point in common.

that means it must have the same slope but a different y-intercept.

the line in the graph goes through the origin (0, 0), which makes the y-intercept = 0 (the y value when x = 0).

and we see that the points with integer coordinates seem to be e.g. (3, -2).

so, for the slope (y difference / x difference between 2 points) we use this point and the origin.

x changes by +3 (from 0 to 3).

y changes by -2 (from 0 to -2).

so, the slope is -2/3. and it is always the factor of x.

let's look at the answer options :

2x + 3y = 0

3y = -2x

y = (-2/3)x

this is the identical line, so it is wrong !

2x + 3y = 6

3y = -2x + 6

y = (-2/3)x + 2

the same slope and different y-intercept.

this is the correct solution !

2x - 3y = 9

-3y = -2x + 9

y = (2/3)x - 3

wrong slope. so it is wrong !

y = 3x + 2

wrong slope. so it is wrong !

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3 years ago
I need help: number 19
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Answer:

y=x+2

Step-by-step explanation:

the standard form is y=mx+b where m is the slope and b is the y intercept

TO FIND THE SLOPE: we take the x and y intercepts as a fraction. in this case the line touches the y axis (vertical) at point/value 2 and the x axis at point 2 as well. This means the slope is 2/2x which can be simplified to 1x or just x.

TO FIND THE Y INTERCEPT: we find where the line touches the y axis at point 2.

the slope is plugged into the m of the equation and the y intercept is plugged into the b of the equation.

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Answer:

A

Step-by-step explanation:

6ft plus 1 3/4 is 7 3/4

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