<span>Jill has $30 and Maddie has $60. Jill saves $4 per week and Maddie saves $2 per week. How long will it be before Jill and Maddie have the same amount of money?</span>
The slope within two sets of points is calculated using the slope equation 
<h3>What is slope?</h3>
The slope of a line or points is the rate of change of the line.
This in other words means that, the vertical change per unit horizontal change
Assume that the points are given as:
(x1, y1) and (x2, y2)
The slope (m) of the points is:
Hence, the equation of two sets of points is
Read more about slopes at:
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3/5 divided by -4/9
3/5 times the reciprical -9/4
-27/20=-1 7/20
1280. 100% of students
X. 60% of student voting for Joan
X=1280•60/100
X=768
2 pounds = $3.96
4 pounds = $3.96 x 2
4 pounds = $7.92
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Answer: $7.92
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