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2 years ago

PLS HELPPP I WILL GIVE BRAINLYISTT!!!!!

Mathematics

1 answer:

dem82 [27]2 years ago

7 0

Answer:

a) 3/5, 60%

b) 1/15, 0.07

c) 9:1, The ratio means that Jack had spent 9 times more money on shoes than on music, 9/1

Step-by-step explanation:

a) The ratio would be 45:75, simplifying that would be 3/5. Now, 3 divided by 5 is .6, which would be 60%.

b) This ratio would be 5:75, simplifying that would be 1/15. 1 divided by 15 is 0.0666666. Rounding it to the nearest hundreth would get you 0.07

c) The ratio of shoes money and music money would be 9:1. You can find this by making the denominators of each of the fractions the same, so 3/5 multiplied by 3 gets you 9/15. Now, you can easily compare them.

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2 years ago

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Answer:

A) Slope =

$m = \frac{1}{4} x$

explanation:

Take 2 random points off the line, I used (4,1) & (8,2)

The formula to find the slope when given 2 points is

$m = \frac{rise}{run} = \frac{y2 - y1}{x2 - x1}$

so in this case x1 & y1 are assigned to (4,1)

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and x2 & y2 are assigned to (8,2)

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so substitute the numbers into the formula and solve !

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this will result in the answer I got above!!

B) yes it does show a constant rate of change cause it's increasing in 1/4x intervals

C) just because you move the placement of a line on the graph doesn't mean it's going to effect the slope as long as the numbers on the axis don't change!!

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2 years ago