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Marina86 [1]
3 years ago
7

Gretchen finished her first lap in the 200 m freestyle event in 28.78 seconds. She completed the second lap in 31.31 seconds. By

how much did her time increase in the second lap?
Mathematics
1 answer:
Ray Of Light [21]3 years ago
8 0

Answer:

her time increased 2.53 seconds

Step-by-step explanation:

subtract 28.78 from 31.31 to get how much her time increased.

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Zepler [3.9K]

Answer:

54  hope this helps

Step-by-step explanation:

5 0
3 years ago
Clare is paid $90 for 5 hours of work. At thos rate how many seconds does i take for her to earn 25 cents?
natka813 [3]

We are given

Clare is paid $90 for 5 hours of work

Total money paid =$90

total hours of work =5 hours

so, firstly  we will find rate of work

rate of work = ( total money paid)/( total hours of work)

now, we can plug values

and we get

The rate of work is

=\frac{90}{5}

=18 $/ hour

now, we have to find time for amount paid is 25 cents

so, amount paid =25 cents

100 cents =1$

so, amount paid =$ 0.25

Since, the rate is constant

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now, we can use formula

rate of work = ( total money paid)/( total hours of work)

now, we can plug values

18=\frac{0.25}{T}

now, we can solve for T

T=\frac{0.25}{18} hour

since, T is in hours

so, we can change into seconds

1 hour =3600seconds

so, we can plug

T=\frac{0.25}{18}\times 3600 seconds

T=50 seconds......................Answer


6 0
3 years ago
A restaurant sells burritos for $8.00 each. The cost of the meat is $1.50 and the cost of the
melisa1 [442]

the cost of making one burrito is the addition of the cost of the meat and the other ingredients:

1.00+1.50=2.50

Then the cost of the burrito is -$2.50

PLEASE MARK ME AS BRAINLIEST

8 0
3 years ago
-6(6m + 7) = 102<br> Please help
nika2105 [10]

Answer:

Heres ur answer m=-4

8 0
3 years ago
A. (2 + 4) + 5( − 1) − ( + 7)
Novay_Z [31]
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2 years ago
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