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dexar [7]
3 years ago
12

Ms. jada wants to save money for her spring break trip. She already has $400 saved in her account. She needs $1600 for the entir

e trip. If she saves $300 every month, how many months does she need to save up her money?
Mathematics
2 answers:
PilotLPTM [1.2K]3 years ago
5 0

Answer:

1600-400

=1200

1200/300

=4 months

Step-by-step explanation:

Hope this helped have an amazing day!

valkas [14]3 years ago
3 0

Answer:

1600-400

=1200

1200/300

=4 months

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Can anyone help me please?
Grace [21]

Answer: 17

Step-by-step explanation:

We can tell that for every 2 changes in X there is 8 points lost in y

meaning that if we do 8 /2 we get 4

Every 1 change in x there is 4 points of change in Y

so if (3,5) Then (0,17)

17 - 5 = 12 And 3-0 = 3 So for 3 points of change for Xthere were 12 points of change for Y so this is right

3 0
2 years ago
Read 2 more answers
Suppose the heights of 18-year-old men are approximately normally distributed, with mean 65 inches and standard deviation 4 inch
Serhud [2]

Answer:

Step-by-step explanation:

<u>a)</u>

  • Given that ; X ~ N ( µ = 65 , σ = 4 )
  • P ( 64 < X < 66 )

From application of normal distribution ;

  • Z = ( X - µ ) / σ, Z = ( 64 - 65 ) / 4,  Z = -0.25
  • Z = ( 66 - 65 ) / 4,  Z = 0.25

Hence, P ( -0.25 < Z < 0.25 ) = P ( 64 < X < 66 ) = P ( Z < 0.25 ) - P ( Z < -0.25 ) P ( 64 < X < 66 ) = 0.5987 - 0.4013

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b) X ~ N ( µ = 65 , σ = 4 )

  • P ( 64 < X < 66 )

From normal distribution application ;

  • Z = ( X - µ ) / ( σ / √(n)), plugging in the values,
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  • Z = ( 66 - 65 ) / ( 4 / √(12)) = Z = 0.866

P ( -0.87 < Z < 0.87 )

  • P ( 64 < X < 66 ) = P ( Z < 0.87 ) - P ( Z < -0.87 )
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c) From the values gotten for (a) and (b), it is indicative that the probability in part (b) is much higher because the standard deviation is smaller for the x distribution.

4 0
3 years ago
i require assistance on this mathematics homework. I would gladly appreciate any sort of help. n o b o t s
shutvik [7]
I have no idea about the ancwer
4 0
2 years ago
Read 2 more answers
The freshman class has 160 students. Each freshman must write three reports from a list of 12 novels that the teacher has assign
puteri [66]

Answer:

220

Step-by-step explanation:

Given that the freshman class has 160 students.

Each freshman must write three reports from a list of 12 novels that the teacher has assigned them to read

Here order does not matter.  Hence combinations can be used.

No of available options  = 12

No to be selected =3

Possible number of ways = ways of selecting 3 from 12 where order does not matter

= 12C3\\=\frac{12(11)(10)}{6} \\=220

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4 0
3 years ago
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sveticcg [70]
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