The rate of change is the change in Y over the change in X.
Rate of change = (-5 - 0) / (-2 - -3)
Rate of change = (-5 ) / (-2+3)
Rate of change = -5 /1
Rate of change = -5
Answer:
$54.25
Step-by-step explanation:
4/5 yards of lace = $5.60
Price per yard = 5.60 ÷ 4/5
= 5.60 × 5/4
= 28 /4
= $7 per yard
The class decided to buy another 7 3/4 yd
Cost of 7 3/4 yd = cost per yard × number of yards
= $7 × 7 3/4
= $7 × 31/4
= 217 / 4
= $54.26
Cost of 7 3/4 yd = $54.25
Total income is $70/week. $20 of that goes towards the cost of gas. Thus, the net earnings were $50 for the week.
$50
------------------- = $5 per hour
10 hours
