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Shkiper50 [21]
3 years ago
5

Need Help with this. 4(v+4)-7v

Mathematics
2 answers:
Zolol [24]3 years ago
8 0

Answer:16-3v

Step-by-step explanation:

Take off the brackets by multiplying the terms inside the bracket by 4,

4v+16-7v

Simplify

16-3v

Juliette [100K]3 years ago
7 0

Answer:

16-11v

Step-by-step explanation:

4(v+4)-7v    - Question

4v+16-7v     - Distribute the 4 with the digits inside the parenthesis

        -4v      - Subtract 4 from both sides

   16 -11v      - Answer

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Julia can finish a 20-mile bike ride in 1.2 hours. Katie can finish the same bike ride in 1.6 hours. To the nearest tenth of a m
Brums [2.3K]

Answer:

Step-by-step explanation:

julia : 20 miles in 1.2 hrs = (20/1.2) = 16.67 miles per hr

katie : 20 miles in 1.6 hrs = (20 / 1.6) = 12.5 miles per hr

how much faster does julia ride then katie...

16.67 - 12.5 = 4.17 rounds to 4.2 miles per hr faster <==

4 0
3 years ago
The number of people in a car that crosses a certain bridge is represented by the random variable X, which has a mean value μX =
Alona [7]

Let Y be the total amount of money paid by any given set of passengers. If there are X passengers in a car, then the driver must pay a toll of Y=0.5X+3.

Then Y has first moment (equal to the mean)

E[Y]=E[0.5X+3]=0.5E[X]+3E[1]=0.5\mu_X+3=\boxed{4.35}

and second moment

E[Y^2]=E[0.25X^2+3X+9]=0.25E[X^2]+3E[X]+9E[1]=0.25E[X^2]+3\mu_X+9

Recall that the variance is the difference between the first two moments:

\mathrm{Var}[X]=E[X^2]-E[X]^2\implies E[X^2]={\sigma^2}_X+{\mu_X}^2

\implies E[Y^2]=0.25({\sigma^2}_X+{\mu_X}^2)+3\mu_X+9\approx19.22

\implies\mathrm{Var}[Y]=E[Y^2]-E[Y]^2=\boxed{0.3}

3 0
3 years ago
Julianne and Benjamin are financing $113,500 to purchase a house. They obtained a 15/5 balloon mortgage at 4.95%. What will thei
andrew-mc [135]

Answer:Balloon payment:$84,646.62

Step-by-step explaination:

Monthly payment

Monthly principal and interest payment (PI). The monthly payment is calculated using a term up to 15 years.

Total interest paid:$22,374.55

Total regular payments:$51,227.93

Balloon payment:$84,646.62

5 0
3 years ago
Please help me with this
My name is Ann [436]

Just do 72 - 9 = 63

Hope this helps

4 0
3 years ago
Read 2 more answers
Someone please help
Julli [10]

Step-by-step explanation:

Blue : red

4:6

800:1200

C should replace the star

4 0
3 years ago
Read 2 more answers
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