Answer:
400 meters
Step-by-step explanation:
We are told in the question that:
Jake runs the 100-meter dash in
track.
Erika runs a race 400% the distance of Jake's race.
Hence, the length of
Erika's race is calculated as:
400% × 100 - meter
= 4 × 100- meter
= 400 meters
Therefore, Erika's race was 400 meters long.
Answer:
1/2
Step-by-step explanation:
1 1/3+(-5/6)
1 1/3=4/3
4/3+(-5/6)
4/3-5/6
8/6-5/6
3/6
simplify
1/2
Answer:
Step-by-step explanation:
The first 9 stands for 90,000 and the second for 9 000 so the first 9 is worth
90,000 / 9,000 equals 10 times the second one.
Answer:
18 Weeks
Step-by-step explanation:
$39.50=17 + (5*x)
$39.50-17=17-17 + (5*x)
$22.5/5=(5*x)/5
It will take 4.5 months to save up. If each month has 4 weeks it will take 18 weeks
Answer:
The standard error increases and the width of the interval increases
Step-by-step explanation:
The variance is equal to the square of the standard deviation. An increase in variance will increase the standard deviation.
The width of the confidence interval can be defined as:
The width is proportional to the standard deviation, so when the variance increases, the standard deviation and also the width of the interval increases.
