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Hunter-Best [27]
2 years ago
13

Sarah runs at a rate of 8 miles per hour what is her speed at feet per second

Mathematics
1 answer:
LekaFEV [45]2 years ago
4 0

Answer:

i worked some of it out

Step-by-step explanation:

1 mile = 5,280ft

1 hour = 8 miles

30 min = 4 miles

15min = 2 miles

7.5 (7min and 30 sec) = 1 mile

3.75(225 sec) =1/2 mile = 2,640ft

0.25(quarter of a mile) = 1,320ft

i just completely lost myself but if this helps then great! sorry if i wasted your time

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Demarcus' workout playlist consists of classic rock songs and rap songs.
Irina18 [472]
It is (13 + 34), (43 + 4). Hope this helps!!! It couldn’t be the other ones because they don’t include all of the numerals.
7 0
2 years ago
Cody's new car cost $15,200. With a sales tax of 7%, determine the total price of the car.
Paul [167]

Answer:

$16,264

Step-by-step explanation:

.07(15200)=1064

1064+15200(original price)=16264

4 0
2 years ago
Read 2 more answers
The ratio of Dina's bathing suit to yana is 4:1, if Dina has 24 more bathing suits than yana, how many bathing suits does yana h
Thepotemich [5.8K]
I'd say Yana has 6...

30\ 6 is 5

the ratio range is a group inside 5..

so Dina has 30 swim suits...which is 5 times 6 of yana.

so since Dina has 24 "more" than yana... Dina is 4 : Yana is 1....4:1

5 0
2 years ago
Scores on a biology final exam are normally distributed with a mean of 220 and a standard deviation of 16. Determine the percent
IrinaK [193]

Answer:

86.64%

Step-by-step explanation:

Mean (μ) = 220

σ= 16

n= 4

mean score(X) = 220 -12

= 208

Using central limit theorem which says that for a sample of size (n), the standard error is

standard deviation /√n

= 16/√4

= 16/2

= 8

Standard error = 8

Using Z score

Z = (μ - x) / standard error

Z= (220 -208)/8

Z= 12/8

Z= 1.5

From the table, Z = 1.5 = 0.4332

Since the normal distribution curve is symmetrical, we have

0.4332*2

= 0.8664

Percentage = 0.8664*100

= 86.64%

6 0
2 years ago
It cost Jayden $4.80 to send 96 text messages. How much would it cost to send 155 text messages?
TEA [102]
96 messages .... $4.80
155 messages .... x

x= (155x4.80):96=7.75
3 0
2 years ago
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