Asked by Sarah
Pencils cost 20 cents and pens cost 50 cents. Mabel buys x pencils and y pens, spending $2.00.
Write an equation in slope-intercept form that expresses y in terms of x.
slope= -2/5 what does it represent?
y-intercept= 4 what does it represent?
Write an equation in slope-intercept form that expresses y in terms of x.
slope= -2/5 what does it represent?
y-intercept= 4 what does it represent?
Answers
Answered by
Bosnian
Correct.
20 cents =0.2 $
50 cents =0.5 $
0.2 x + 0.5 y = 2 Subtract 0.2 to both sides
0.2 x + 0.5 y - 0.2 x = 2 - 0.2 x
0. 5 y = 2 - 0.2 x multiply both sides by 2
y = 4 - 0.4 x
y = - 0.4 x + 4
20 cents =0.2 $
50 cents =0.5 $
0.2 x + 0.5 y = 2 Subtract 0.2 to both sides
0.2 x + 0.5 y - 0.2 x = 2 - 0.2 x
0. 5 y = 2 - 0.2 x multiply both sides by 2
y = 4 - 0.4 x
y = - 0.4 x + 4
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