This is the answer to your question
Price of DVD player ≥ $150
Saved = $80
Amount needed = $150 - $80 = $70
Saving per week = $10
Let x be the number of weeks needed:
80 + 10x ≥ 150
10x ≥ 150 - 80
10x ≥ 70
x ≥ 70 ÷ 10
x ≥ 7
Answer: She needs to save for for at least 7 weeks.
Answer:
$0.5
Step-by-step explanation:
Given :
Hours ___Lot A Cost ($) ___ Lot B Cost ($) 4____________19.00 _____ 20.00
8 ___________ 33.00 ______ 32.00
Using the equation :
y = mx + C
m = slope = Hourly charge
C = intercept = set park fee
m = y2 - y1 / x2 - x1
For LotA:
m1 = (33 - 19) / (8 - 4)
m1 = 14 / 4
m1 = 3.5
For LotB:
m2 = (32 - 20) / (8 - 4)
m2 = 12 / 4
m2 = 3
Since, m is the hourly cost :
Difference = m1 - m2
= 3.5 - 3
= $0. 5
let the number = x
x*80/100 = 55
x = 5500/80
x=68.75
After rounding off, it will remain 68.75
Answer:
63
Step-by-step explanation: