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shutvik [7]
2 years ago
10

The senior class purchased pizza to sell after school for $320. If they sell pizza by the slice they make $2 per slice. If they

sell a
whole pizza it's $10. Each pizza has 8 slices. Let u represent the number of slices sold and let y represent the number of whole
pizzas sold. If the class has 40 pizzas to sell, what is the greatest number of pizzas they can sell if they want to make a profit of
at least $140.
Mathematics
2 answers:
SIZIF [17.4K]2 years ago
6 0

Answer:

30

Step-by-step explanation:

Why!

let x = number of slices sold

let y= number of pizzas sold

If you need to make a profit of at least 140 then you have to make what you paid + what you want = $320+$140 = $460

x= (40-y)8 = 320-8y  : 40 is the number of pizza they bought &each pizza has 8 slices

2x + 10y  ≥ 460

2 (320-8y) + 10≥460

Just solve it

180≥6y

30≥y

Therefore the greatest number of pizzas you can sell is 30 to make at least $140                                                                          

marin [14]2 years ago
5 0

Answer:30

Step-by-step explanation:

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PLS HALP ME!!!!!! You have $6.50 to make copies. Each copy costs $0.45. Write and solve an inequality that represents the number
serious [3.7K]

Step-by-step explanation:

Variable x = number of copies

6.50 <= 0.45x

Divide both sides by 0.45

6.50 ÷ 0.45 <= 0.45x ÷ 0.45

14.4444.... <= x

No more than 14 copies

6.50 <= 0.45x

6.50 <= 0.45(14.444)

7 0
2 years ago
Victoria has a 2 pound package of flour. She uses 2/5 of the flour to make pizza. She then uses 3/10 of the remaining flour to m
timama [110]
One pound= 16 ounces 

2 x 16 = 32 ounces = 2 pounds

2/5 can also be expressed in decimal form as .4

so 32 x .4 = 12.8

and then 3/10 also is .3 

so 32 x .3 = 9.6 

add the two 12.8 + 9.6 = 22.4

7 0
2 years ago
A four-person committee is chosen from a group of eight boys and six girls.
Stolb23 [73]

Answer:

The probability is approximately 0.0699. That's \displaystyle \frac{10}{143} to be exact.

Step-by-step explanation:

How many ways to choose four out of a total of 8 + 6 = 14 boys and girls?

\displaystyle {14\choose 4} = 1001.

How many ways to choose four boys out of a total eight boys?

\displaystyle {8\choose 4} = 70.

What's the probability that all four persons chosen out of the pack of fourteen are boys? All 1001 ways of choosing four out of fourteen are equally likely. However, only 70 satisfy the conditions. In other words, the probability of choosing four boys out of this group of eight boys and six girls is equal to:

\begin{aligned}&\frac{\text{Number of ways to choose four out of eight}}{\text{Number of ways to choose four out of fourteen}} \\= &\frac{70}{1001}\\=&  \frac{10}{143}\approx 0.0699\end{aligned}.

6 0
2 years ago
Read 2 more answers
A local charity receives 1/3 of funds raised during a craft fair and a bake sale. The total amount given to charity was 137.45.
Aleonysh [2.5K]
Answer:
The bake sale raised $45.81.

Step-by-step explanation:
You take the fraction (1/3) and turn it into a decimal point (.33). Then, you multiply the total (137.45) by the decimal (.33) to get the total amount raised from the bake sale (45.81) .

Hope this helps! ;)
7 0
2 years ago
Kelly and Greta are asked to write an equation for the scenario below. “One person was able to plant 4 trees in the same amount
Oduvanchick [21]

<u>Answer:</u> Greta is correct.

<u>Explanation:</u>

Greta is correct sine you can substitute different number of people for each of the values of and y and check that each person will still plant 4 trees.

For example:

4x = 4(1) = 4 trees; and

4 x 5 = 20

but you should follow a certain pattern to increase the value of x, such that every foe every value of x, one person is able to plant 4 trees.

8 0
2 years ago
Read 2 more answers
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