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shepuryov [24]
3 years ago
15

14 POINTS 7x - 3 = 18

Mathematics
2 answers:
Sunny_sXe [5.5K]3 years ago
8 0
First is for you to try to leave X alone on the left side to find its value.
Step 1: -3 is moved to the right side as a addition so the equation now should be 7x=21.
Step 2: We need to leave X alone so we also move 7 to the right side as a division. Your equation should look like this x=21/7, divide it and the result is x=3
Hope This Helps You
Svetlanka [38]3 years ago
5 0
Subtract 3 first so it would be 7x=15
then divide by 7 so x would be approximately 2.14
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Answer:

1) The linear equation in point and slope form is y - 67 = -4 × (x - 14)

2) The variables are;

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The number of candies Jennifer eats everyday = 4 pieces

The number of days for which Jennifer eats the daily 4 candies = 14

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1) We note that the rate of decrease in the number of candies = 4 candies/day

Therefore, the slope of the linear equation is m = -4

The y-intercept = The initial amount of candies Jennifer has = c = 67 + 14× 4 = 123 candies

The linear equation in point and slope form is given as follows;

y - 67 = -4 × (x - 14)

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a) The y-value represents the number of candies available on a specific day

b) The x value represents the number of days Jennifer eats the candies'

c) The slope = The rate of decrease in the number of candies per day = -4

3) The number of candies Jennifer receives on Halloween is given by the y-intercept of the straight line equation as follows;

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y - 67 = -4·x + 56

y = -4·x + 56 + 67 = -4·x + 123

y = -4·x + 123

Comparing the above equation, with the general form of the straight line equation, y = m·x + c, where, the constant term, c = The y-intercept, we have;

The y-intercept of the equation y = -4·x + 123 = 123 = The initial amount of candies Jennifer received on Halloween.

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