MATHEMATICS MIDDLE SCHOOL

Evaluate.



2 • {[5 • (60 – 14 ÷ 7)] + 25} • 5

Answers

Answer 1
Answer: The answer is 3150 :)
BODMAS
brackets, division, multiplication, addition, subtraction

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3/4, 7/8, 3/5 least to greatest order

PLEASSEEEEE HELPPPPP ASAPPPP I WILL GIVE BRAINLIEST FOR CORRECT ANSWERS ONLY PLEASE


Question 1(Multiple Choice Worth 5 points)
(03.01 LC)

Zak and Ryan earn $60 per week for delivering pizzas. Zak worked for x weeks and earned an additional total bonus of $25. Ryan worked for y weeks. Which expression shows the total money, in dollars, that Zak and Ryan earned for delivering pizzas?

85x + 60y
60x − 25 + 60y
60x + 85y
60x + 25 + 60y
Question 2(Multiple Choice Worth 5 points)
(03.02 MC)

Nadia surveyed 80 students at her school and found that 0.55 of the students she surveyed said their favorite class is math. Another 15% of the students she surveyed reported that their favorite class is science. How many more students in the survey prefer math over science?

12
32
44
48
Question 3(Multiple Choice Worth 5 points)
(03.01 LC)

A theater company charges $7.50 per ticket for people of all age groups. If c represents the total number of children who bought tickets and a represents the total number of adults who bought tickets, which expression best represents the total money earned by the company from the sale of tickets?

7.5c + a
c + 7.5a
15(c + a)
7.5(c + a)
Question 4(Multiple Choice Worth 5 points)
(03.02 MC)

Bella, Lydia, Camila, and Trinity together stacked a total of 60 pizzas in a pan. Bella stacked 0.25 of the pizzas, Lydia stacked 12 of the 60 pizzas, Camila stacked 35% of the pizzas, and Trinity stacked the remaining pizzas. Who stacked the most pizzas?

Bella
Lydia
Camila
Trinity
Question 5(Multiple Choice Worth 5 points)
(03.01 LC)

Which expression is equivalent to 12a + 8?

4(3a + 2)
4(3a + 8)
6(6a + 2)
6(6a + 8)
Question 6(Multiple Choice Worth 5 points)
(03.05 MC)

Lena needs $50 to buy some notebooks. She had saved $2 and plans to work as a babysitter to earn $8 per hour. Which inequality shows the minimum number of hours, n, that Lena should work as a babysitter to earn enough to buy the notebooks?

2 + 8n ≤ 50, so n ≤ 6
8n ≤ 50 + 2, so n ≤ 6.5
8n ≥ 50 + 2, so n ≥ 6.5
2 + 8n ≥ 50, so n ≥ 6

Answers

1.60x + 25 + 60y

2.32

3.d

4.Camila

5.4(3a + 2)

6.2 + 8n ≥ 50, so n ≥ 6

Question 1: 60x + 25 + 60y

Solve the system of equations by graphing.

X+y=-2
Y=2x-8

Choose:

Answers

Answer:

Step-by-step explanation:

hello :

one solution (-5 ; -1)

A group consisted of 2 girls for every boy. 24 more girls joined in the class. There are now 5 girls for every boy. How many are in the class?

Answers

in\ the\ class\ are\ n\ boys\ \ \ \Rightarrow\ \ 2n+24=5n\ \ \Rightarrow\ \ 3n=24\ \ \Rightarrow\ \ n=8\n\nn=8\ \ \Rightarrow\ \ 5n=5\cdot 8=40\ (girls)\n\n40+8=48\n\nAns.\ in\ the\ class\ are\ 48\ students.
Situation 1:

(g)/(b)=2\rightarrow g=2b

Situation 2:

(g+24)/(b)=5\n \n g+24=5b

Replacing g in the second equation:

2b+24=5b\n \n 3b=24\n \n b=8\n \n g=2b\n \n g=16

In the Situation 1 there was 16 girls and 8 boys = 24 persons
In the Situation 2 there are 40 girs + 8 boys = 48 persons

the price of a tv was originally 374.99 and reduced to 299.50. what was the percent decrease of the price of the tv round your answer to the nearest tenth

Answers

first you should say: 
374.99 - 299.50 = 75.49
so now you should say:
75.49/374.99 = ?/100
so ? is the percent:
? = (75.49*100)/374.99 = 20.131 % :)))
i hope this is helpful
have a nice day 

Answer: 20.13% decrease

Step-by-step explanation:

First, you should do: 374.99 - 299.50 = 75.49  

After that, you should divided 75.49 by 374.99 =

(75.49 x 100)/374.99 = 20.131%

Given that (4p-5q)/(6p+q) = 1/4 , find the value of 2p : 7q in its lowest term.

Answers

Start from

\cfrac{4p-5q}{6p+q} = \cfrac{1}{4}

and cross multiply the denominators (i.e. multiply both sides by 4(6p+q)

The result is

4(4p-5q) = 6p+q

Expand the left hand side:

16p-20q = 6p+q

Bring all terms involving p to the left, and all terms involving q to the right:

16p-6p = 20q+q \implies 10p=21q

Divide both sides by 21q:

\cfrac{10p}{21q} = 1

Now we have a ratio between multiples of p and q. It's not exactly the one we want, though. Nevertheless, we can keep multiplying both sides by approriate constants in order to get the ratio we want:

Divide both sides by 5:

\cfrac{2p}{21q} = \cfrac{1}{5}

Multiply both sides by 3:

\cfrac{2p}{7q} = \cfrac{3}{5}

A stockbroker earns a commission by a flat fee for each transaction as well as a fee per share. On a particular transaction, the stockbroker sold 5,000 shares to a client at a rate of $0.01 per share. The cost of the transaction totaled $57.50. Which of the following equations describes the cost of this transaction in terms of shares sold?A.y = 0.01x
B.y = 0.01x + 7.5
C.y = 0.01x + 4,999.425
D.y = 0.01x + 5,000

Answers

Answer:

Option B. y = .01x + 7.5

Step-by-step explanation:

If a stock broker earns a commission by a flat fee for each transaction as well as a fee per share.

Let the commission on each share charged by the stock broker is x.

Selling price of 5000 shares + total fees of broker = Cost of the transaction

5000×.01 + Fees = 57.50

Fees = 57.50 - 50 = $7.50

Now we can form the equation which represents the cost of this transaction  as

y = .01x + 7.5

Therefore option B is the correct answer.
Clearly, alternative B

y = 0.01x + 7.5
y = (0.01)*5000 + 7,5
y = 50 + 7.5
y = 57.50
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