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crimeas [40]
3 years ago
5

Frankie is practicing for a 5−kilometer race. His normal time is 31 minutes 25 seconds. Yesterday it took him only 29 minutes 38

seconds. How much faster was Frankie yesterday than his normal time?
Mathematics
1 answer:
gayaneshka [121]3 years ago
3 0
Frankie was 107 seconds faster or 1 minute and 47 seconds faster
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Persons taking a​ 30-hour review course to prepare for a standardized exam average a score of 620 on that exam. Persons taking a
mihalych1998 [28]

Answer:

y = 4.125x + 496.25

Step-by-step explanation:

Set the data up as points. Then deal with the points.

Givens

(30,620)

(70,785)

y2 = 785

y1 = 620

x2 = 70

x1 = 30

Formula

Slope = (y2 - y1) / (x2 - x1)

Solution

Slope = (785 - 620)/(70 - 30)

Slope = 165 / 40

Slope = 4.125

===================

Now you need the y intercept. Either one of the two given points will give you that.

y = 620

x = 30

m = 4.125

y = mx + b

620 = 4.125*30 + b

620 = 123.75 + b

620 - 123.75 + b

b = 496.25

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3 years ago
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Svetlanka [38]

Answer:

3/2 g.oogle if you want the explanation of your work.

4 0
2 years ago
Write the equation of the line that passes through the points (4,9) and (9,1). Put
Sonbull [250]

Answer:

y=-8/5x+77/5

Step-by-step explanation:

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7 0
3 years ago
HELP HELP HELP HELP HELPPPP.
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Answer:

letter d

................

5 0
2 years ago
Read 2 more answers
See attachment to help.
GenaCL600 [577]
B.
because {1,1,3,5,8}
{2,2,4,6,9}

you're just counting the numbers after the one that was given to you.
3 0
2 years ago
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