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4 years ago

Let n = 5. What is the value of 4n − 3?

Mathematics

2 answers:

Sphinxa [80]4 years ago

5 0

4×5= 20
20-3=17
so the answer is 17

Alex73 [517]4 years ago

3 0

4n − 3
4 × 5 -3 = 17

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film processing costs $4.95, plus $0.35 for each picture printed. Milan paid $11.95 for processing and printing. How many pictur

xenn [34]

Answer:

20 pictures.

Step-by-step explanation:

In this question, we need to find out how many pictures Milan printed.

We know that the film processing costed $4.95 and each picture that was printed costed $0.35.

Lets turn this into an equation with x representing the amount of pictures:

y = 0.35x+ 4.95

Now we need to solve the equation. We can do this by plugging in our known cost, 11.95, into "y".

Solve:

11.95 = 0.35x + 4.95

Subtract 4.95 from both sides.

7 = 0.35x

Divide both sides by 0.35

20 = x

Milan printed 20 pictures.

7 0

3 years ago

You know that the average college student eats 0.75 pounds of food at lunch. If the standard deviation is 0.2 pounds of food, th

Fynjy0 [20]

Answer: $53.95

Step-by-step explanation:

Given: $\mu=0.75$ pounds

$\sigma= 0.2$ pounds

n= 50

Two tailed critical z-value for 90% confidence level = 1.645

Let x be the total amount of food that a cafeteria should have on hand to be 90 percent confident that it will not run out of food .

z-score = $\dfrac{x-\mu}{\sigma}$ $=\dfrac{x-0.75}{0.2}$

Then, $\dfrac{x-0.75}{0.2}=1.645$

$x-0.75=1.645\times0.2\\\\\Riightarrow\ x-0.75=0.329\\\\\Rightarrow\ x= 0.329+0.75\\\\\Rightarrow\ x= 1.079$

Foe 50 students, total amount of food = 1.079 x 50 = $53.95

hence, the cafeteria should have food of amount $53.95 so that it is be 90 percent confident that it will not run out of food.

7 0

4 years ago

Factor 12y^2 + 5y - 2 completely.

guapka [62]

So the right answer is of option C.

HOPE THIS WILL HELP U...=)

6 0

3 years ago

Read 2 more answers

4) What is the present value of $4000 received at the

Bingel [31]

Answer:

$11040

Step-by-step explanation:

first of all the question says that $4000 were earned in a year and asks for what the new vale would be after the next 3 years with a discount rate of 8%.

If 1 year=$4000,then 3 years=$12000

100%-8%=92% (this happens because there is still a remaining amount that still has a cost to it),so 12000*92%=$11040

8 0

3 years ago

Read 2 more answers

Evaluate: [(21 + 6) − 32] ÷ 9.2 A) 4. B) 4.6. C) 1. D) 52.

Dima020 [189]

[(21 + 6) - 32] : 9.2 = (27 - 32) : 9.2 = -5 : 9.2 = -46

5 0

3 years ago