Answer:
8 weeks
Step-by-step explanation:
Given data
Matteo
Amount= $400
Spending per week= $10
Hence his balance after x weeks is given as
y=400-10x-------------1
Luca
Amount= $200
Spending per week= $15
Hence his balance after x weeks is given as
y=200+15x-------------2
Equate 1 and 2
400-10x=200+15x
collect like terms
400-200=15x+10x
200=25x
x= 200/25
x= 8 weeks
Hence it will take 8 weeks
Answer:
Step-by-step explanation:
how the prices at Payless compared to the prices
at Famous Footwear. At each store, they randomly
selected 30 pairs of shoes and recorded the price of
each pair. The table shows summary statistics for
the two samples of shoes.28
Store
Mean
SD
Famous Footwear
$45.66
$16.54
Payless
$21.39 $7.47
Do these data provide convincing evidence at the
0.05 significance level that shoes cost less
, on
average, at Payless than at Famous Footwear?
a =
Answer:
12,600
Step-by-step explanation:
