Answer:
77
Step-by-step explanation:
If you have any questions about the way I solved,don't hesitate to ask
Answer:
1 1/4 yards of fabric
Step-by-step explanation:
2 1/2+ 1 3/4=4 1/4
4 1/4 - 3 = 1 1/4
Answer:
Step-by-step explanation:
We want to find 
. 
can be written as 
, so we can now write our original equation as: 
.
We can combine like terms: 
Hope this helps!
500 songs in his music player: + 500
every week he adds 10 songs: 10n (n is how many weeks)
equation: s = 10n + 500 (s is the total amount of songs)
after 20 weeks? : plug it in
s = (10 x 20) + 500
s = 200 + 500
s = 700
he will have 700 songs in his music player after 20 weeks
Answer:
We conclude that he used a paired two-sample t-test.
Step-by-step explanation:
We know that the student measuring how gasoline prices change records the cost of gas at 10 randomly selected stations in her hometown. One week later, she records the price again at the same 10 stations.
We conclude that he used a paired two-sample t-test.
Because at each gas station, the student measured the price of gas twice.
