+194 You have 500 sheets of notebook paper. After 1 week, you have 72% of the sheets left. You use the same number of sheets each week. Write an equation in slope-intercept form that represents the number y of pages remaining after x weeks.
y=??
+23247 You start with 500 sheets of notebook paper.
After 1 week, you have 72% of the sheets left.
-- Since 72% of 500 = 0.72 x 500 = 360, you have 360 sheets left.
You use the same number of sheets each week.
-- Since you started with 500 sheets and you have 360 sheets left after one week, you have used 500 - 360 = 140 sheets the first week.
You use the same number of sheets each week, so you use 140 sheets each week.
Write an equation that represents the number of sheets remaining (y) after x weeks.
y = 500 - 140x
In slope-intercept form, this becomes: y = -140x + 500.
+23247 You start with 500 sheets of notebook paper.
After 1 week, you have 72% of the sheets left.
-- Since 72% of 500 = 0.72 x 500 = 360, you have 360 sheets left.
You use the same number of sheets each week.
-- Since you started with 500 sheets and you have 360 sheets left after one week, you have used 500 - 360 = 140 sheets the first week.
You use the same number of sheets each week, so you use 140 sheets each week.
Write an equation that represents the number of sheets remaining (y) after x weeks.
y = 500 - 140x
In slope-intercept form, this becomes: y = -140x + 500.
