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WARRIOR [948]
2 years ago
10

This expression represents the average cost per game, in dollars, at a bowling alley, where n represents the number of games: .

What is the average cost per game if James bowls 4 games?
Mathematics
1 answer:
koban [17]2 years ago
4 0

Answer:

$4.75

Step-by-step explanation:

The expression given for then average cost is :

(3n + 7 / n)

If the number of games, n = 4

The average cost becomes :

(3n + 7) / n

Put n = 4 in the equation

(3(4) + 7) / 4

(12 + 7) / 4

19 / 4

= 4 3/4

= $4.75

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If you can buy 2/3 of a box of chocolate for five dollars how much can you purchase for 4 dollars
Lisa [10]

Hi,

First calculate how much chocolate for 1 dollar.

\frac{2}{3} = 0.67 \\ 0.67 \div 5 = 0.134

Then multiply by four to get amount of chocolate for four dollars.

0.134 \times 4 = 0.536

Answer: 0.536

Hope this helps.

6 0
3 years ago
Read 2 more answers
The height of a triangle is 4 ft less than the base x. The area is 126 ft2. Find the dimensions of the triangle.
valina [46]

Answer:

Base = x = 18ft

Height = x - 4 = 14ft

Step-by-step explanation:

The formula for the area of A the triangle is given by the following equation:

1) A = (base * heigth)/(2)

From this problem, we know that

base = x and that the height is 4ft less than the base, so height = base - 4 = x - 4.

We also know that the area is 126ft², so A = 126 ft². Now we can replace these informations in equation 1).

126 = (x(x-4))/2

x² - 4x = 252

x² -4x - 252 = 0

The roots of this equation are x = 18 or x = -14. But we know that a triangle cannot have negative dimensions, so we use x = 18.

The base is x, so base = 18ft.

Height is 4ft less than the base, so height equals 18-4 = 14ft

7 0
3 years ago
Need help ASAP:)))))))))))))<br>Pls show ur work!<br>1.2x + 7 - 5x <br><br>2.2c - 3 = 2(6 - c) + 7c
USPshnik [31]

Answer:

c = -75/14 OR c = -5.357143

Step-by-step explanation:

Simplify both equations:

1.2x + 7 - 5x =

-3.8x + 7

2.2c - 3 = 2(6 - c) + 7c =

c = −5.357143

OR

c = -75/14

The question wasn't quite clear, if this wasn't correct, please elaborate on what needed to be solved, and I'll fix my answer.

Hope this helped!

5 0
2 years ago
Read 2 more answers
Given the figure below, find the values of x and z. 80° 0 (15x + 40)​
Marat540 [252]
There’s no photo there
5 0
3 years ago
Hypotheses: p=.5 vs p NE .5 ; Sample data: p=28/40= .70 with n=40 Round the p-value to three decimal places.
jeka57 [31]

Answer:

hahahahahaha yes hnjoo

7 0
2 years ago
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