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sattari [20]
3 years ago
9

Anybody know the answer ?

Mathematics
2 answers:
AlladinOne [14]3 years ago
8 0
I think its idfk…maybe?!?
ki77a [65]3 years ago
7 0

Answer:

The final speed after collision of the first ball that weighs 4 kg will be 8.5 m/s.

Step-by-step explanation:

M1 = 4

M2 = 2

V1 = 8

V2 = 6

V2f = 5

V1f = ?

Rep. Situation with Momentum formula:

M1*V1+M2*V2 = M1*V1f+M2*V2f

Rearrange:

((M1*V1+M2*V2)-M2*V2f) / M1 = V1f

Calculate:

((44) - 10) / 4 = V1f

V1f = 8.5

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Sergeeva-Olga [200]

Answer:

$31.05

Step-by-step explanation:

8% of 25 is 2

25 + 2 = 27

15% of 27 is 4.05

27 + 4.05 = 31.05

$31.05 is how much she spends

8 0
3 years ago
A magazine costs 4.95 per month. If you buy a one year subscription, it's 30% cheaper. How much will you pay in one year with th
astraxan [27]

Answer:

41.48/year

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4.95 x 12 = 59.40

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59.40 - 17.82 = 41.48

6 0
3 years ago
Guerby ran 10 miles in 2 hrs, how many miles did he run in 1hr?
Strike441 [17]

Answer:

5 not including rests and what speed.

Step-by-step explanation:

plz mark me brainlyiist :)

8 0
3 years ago
PLEZ HELP ASAP
lisov135 [29]

Answer:

a median

b center

Step-by-step explanation:

The middle value of a set of numbers is the median

The mean is the average value and the range is the largest minus the smallest.

This value is  a measure of the center ( or a measure of the middle)

The range is a measure of the spread

8 0
3 years ago
Read 2 more answers
Jayne says that 0.45 is equal to 4/10. Is she correct? Explain.
yKpoI14uk [10]
No, 4/10 is equal to 0.40 and not 0.45 since 4/10 goes in tens.
4 0
3 years ago
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