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Aliun [14]
3 years ago
14

Pls answer correctly brainliest and 29pts

Mathematics
2 answers:
pochemuha3 years ago
8 0

Answer:

A

Step-by-step explanation:

Distance covered by Amy in one hour = 1/3 x 15 miles = 5 miles

Distance covered by John in one hour = 1/5 x 30 miles = 6miles

As a result, John would  jog 1 mile (6-5)  farther than Amy, the answer is A

Vinvika [58]3 years ago
8 0

Answer: John goes 1 mile further than Amy

Step-by-step explanation:

Figure out how far each person can go in an hour

Amy can go 1/3 of a mile in 1/15 of an hour- Multiple by 15 to see how far she can go in 1 hour

\frac{1}{3} *15= \frac{15}{3}  = 5  so in 1 hour Amy can go 5 miles

John goes 1/5 of a mile in 1/30 of an hour- so multiple by 30 to see how far he goes in 1 hour

\frac{1}{5} * 30 = \frac{30}{5} = 6

John goes 6 miles in an hour

So John goes 1 mile further than Amy (6-5)=1

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Answer: (13.4996, 32.5004)

Step-by-step explanation:

The confidence interval for mean difference is given by :-

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Now, the confidence interval for mean difference will be :-

23\pm (2.262)\times (4.2)\\\\= 23\pm9.5004\\\\=(23-9.5004,\ 23+9.5004)\\\\=(13.4996,\ 32.5004)

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