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xxMikexx [17]
3 years ago
8

Seraphina is driving two hours to visit her family. For the first hour, she traveled at a speed of 62 miles per hour. Then, in t

he second hour, she traveled at a speed of 69 miles per hour. What is the percentage increase of Seraphina's speed? If necessary, round to the nearest tenth of a percent.
Mathematics
1 answer:
Murljashka [212]3 years ago
6 0

Answer:

11.3%

Step-by-step explanation:

\%\ increase=\frac{final-initial}{initial} \times 100\%\\\%\ increase=\frac{69-62}{62} \times 100\%\\\%\ increase=\frac{7}{62} \times 100\%\\\%\ increase=11.3\%

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Colin put a pie in the oven at 1:35 p. M. He took the pie out at 2:17 p. M. How long was the pie in the oven?
bulgar [2K]

Answer:

42 minutes

Step-by-step explanation:

there are 60 minutes in one hour.

from 12 pm, 1 hour and 35 minutes have passed to get to 1:35 pm

from 12 pm, 2 hours and 17 minutes have passed to get to 2:17 pm

we are trying to figure out the start to end time, or the difference between the times

2 hours and 17 minutes - 1 hour and 35 minutes

1 hour = 60 minutes

if we convert everything to minutes we can get a definitive time in one single unit

2 hours = 1 hour * 2 = 60 minutes * 2 = 120 minutes

1 hour = 60 minutes

plug these in

(120 + 17) minutes - (60 + 35) minutes

= 137 minutes - 95 minutes

= 42 minutes as our answer

3 0
2 years ago
91/2 gallons =? quarts
jenyasd209 [6]
 the answer is 3648 quarts
5 0
3 years ago
Last week, there were 450 student absences at Johnson High. The circle graph below summarizes them by the day of the week on whi
Rus_ich [418]

Answer:

Percentage of absentees on Tuesday = 16%

Step-by-step explanation:

Sum of all central angles representing days = 360°

Central angle of the sector representing Tuesday = 57.6°

Therefore, percentage absentees on Tuesday

= \frac{\text{Measure of central angle for Tuesday}}{\text{Sum of all central angles}}\times 100

= \frac{57.6}{360}\times 100

= 16%

Percentage of absentees on Tuesday = 16%

7 0
3 years ago
Hopefully y'all can understand the picture
Lena [83]
The formula for finding the area of a circle can be written in many ways. If the radius is given, the formula is A=πr², where A=area, π=22/7 or 3.14, and r is the  radius.
If the diameter is given, then the formula is A=1/4πd², where A is the area, π is 22/7 or 3.14 and d is the diameter
Given that the diameter is 46 inches and π=22/7 or approximately 3.14, the formula we can use is A=1/4πd² where A=area, π is 22/7 and d is 46
A=1/4*22/7*46*46
A=16662.57 inches² (It is rounded to nearest hundredth)
5 0
3 years ago
Help! I have to get this done by tomorrow morning!!!!!
Oksanka [162]

\frac{1}{5} +\frac{1}{5}+\frac{1}{5}+\frac{1}{5}=\frac{4}{5}

6 0
3 years ago
Read 2 more answers
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