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vagabundo [1.1K]
3 years ago
10

2(k+ 4) = 3(k-2) HELP PLEASE

Mathematics
2 answers:
natima [27]3 years ago
8 0

Answer:

<h2>k=14</h2>

I'm pretty sure this is the correct answer hope it helps :)

dybincka [34]3 years ago
6 0

Answer:

k = 14

Step-by-step explanation:

k = 14 because if you isolatethe variable by dividing each side by factor that dosent contain the variable

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a paintball Court charges an initial entrance fee plus a fixed price for ball pease represents the total price n dollars as func
Evgen [1.6K]

The complete question is;

A paintball court charges an initial entrance fee plus a fixed price per ball.

P represents the total price (in dollars) as a function of the number of balls used n.

P = 0.80n + 5.50

How much do 10 balls cost?

Answer:

Cost of 10 balls = 8 dollars

Step-by-step explanation:

We are told that;

total price in dollars is given as a function of the number of balls

p = 0.8n + 5.5

Where n is number of balls.

We are told that the price above is price of number of balls plus entrance fee.

Thus, 5.5 dollars is the entrance fee while 0.8n dollars is the price for n number of balls.

Thus,for 10 balls,

Price of 10 balls will be 0.8 x 10 = 8 dollars

8 0
3 years ago
If a freight train travels at a speed of 20 miles per hour for 6 hours, how far will it travel? A 120 miles B 80 miles C 26 mile
kaheart [24]

Answer: The answer is A

Step-by-step explanation: Because 6*20= 120

7 0
3 years ago
The rates of return on the investments in a large portfolio had mound shapeddistribution, with a mean of 20% and a standard devi
Scilla [17]

Answer:

a) 68% of the investments had a return of between 10% and 30%.

b) 32% of investments had a return that was either less than 10% or morethan 30%.

Step-by-step explanation:

We can use the Empirical Rule to solve this question:

The Empirical Rule states that, for a normally distributed random variable:

68% of the measures are within 1 standard deviation of the mean. This also means that 32% of the measures are more than 1 standard deviation from the mean.

95% of the measures are within 2 standard deviation of the mean. This also means that 5% of the measures are more than 2 standard deviations from the mean.

99.7% of the measures are within 3 standard deviations of the mean. This also means that 0.3% of the measures are more than 3 standard deviations from the mean.

In this problem, we have that:

Mean = 20%.

Standard deviation = 10%.

a. What proportion of the investments had a return of between 10% and 30%?

10 is the mean subtracted by 1 one standard deviation

30 is one standard deviation added to the mean.

So 10 and 30 are within 1 standard deviation of the mean. So 68% of the investments had a return of between 10% and 30%.

b. What proportion of investments had a return that was either less than 10% or morethan 30%?

This is the proportion of investments that were farther than one standard deviation of the mean.

By the Empirical Rule, 32% of investments had a return that was either less than 10% or morethan 30%.

6 0
3 years ago
Can someone help me fill out this chart
kotegsom [21]

Answer:

is there a y part of this equation?

Step-by-step explanation:

6 0
3 years ago
Write the missing value above the variable. M-9=7
tia_tia [17]
M=16
16-9=7
hope this helped:)
3 0
3 years ago
Read 2 more answers
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