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swat32
3 years ago
15

The soccer team has to order new uniforms. Their shorts cost $10, the jersey costs $15, and their socks cost $18. If there are 2

0 players, which mathematical expression below represents the scenario of the total cost of uniforms for the team?
A. 10(20 + 15 + 8)
B. 20(10 + 15 + 8)
C. 20(10) + (15 + 8)
D. (20 - 10 - 15 - 8)
Mathematics
2 answers:
antiseptic1488 [7]3 years ago
7 0
The correct answer here is B
LenKa [72]3 years ago
4 0

Answer:

B

Step-by-step explanation:

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Jhonny has 7 apples how manuy apples does jonny haves
kicyunya [14]

Answer: 7 apples

Step-by-step explanation:

Considering it's the same person and you only had a typo?

6 0
2 years ago
Which expression can be used to find the price of a $400 telescope after a 32% markup? Select all that apply.
emmainna [20.7K]

Answer:

Expressions C and D correctly determine the markup price.

Step-by-step explanation:

A markup in mathematics is when an object's price is raised by a certain percentage. Therefore, because we are told that the telescope is originally $400 and is marked up by 32%, we can actually mathematically evaluate this.

When you markup a price, you multiply the original price by 1+x, where x is the percentage at which the object is marked up. However, x needs to be in decimal form for it to work out.

\frac{32}{100} = \small\boxed{0.32}

Therefore, with this new decimal, we can add 1 to it.

1 + 0.32=\small\boxed{1.32}

Finally, we multiply this result by the original price.

1.32 \times 400=\small\boxed{528}

Therefore, we can already confirm that Expression C is one way to find the markup price.

  • We can eliminate expression A because it did not use the formula 1+x. It only uses the decimal form of the percentage.
  • We can eliminate expression B because the division to convert from the percentage form to the decimal form is flawed (the expression divided by 10 instead of 100) and also forgot to add 1 to the determined value.

Now, we can test the math for expressions D and E to see if either of these will equal $528.

Expression D is basically saying to add 32% of 400 to the original price. This would work out because we marked up the original price by 32%. Therefore, we can confirm that Expression D is also an expression that can be used to determine the markup price.

400 + 400(0.32)\\400(0.32) = 128\\400 + 128 = \small\boxed{528}

Finally, we also need to check expression E. This expression is saying to add the already marked up price to 400. This would not be correct.

400 \times 400(1.32)\\400(1.32) = 528\\400 \times 528 = \small\boxed{\$ 211,200}

Therefore, it has been determined that Expression C & Expression D are both equations that will find a markup price.

7 0
3 years ago
-50 + 5/13p when p= -26
kaheart [24]

Answer:

-60

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
Jane, Paul and Peter can finish painting the fence in 2 hours. If Jane does the job alone she can finish it in 5 hours. If Paul
rusak2 [61]
<h3>Answer: 7.5 hours (or 7 hours 30 minutes)</h3>

==================================================

Explanation:

Jane does the job alone and she can finish it in 5 hours. Her rate is 1/5 of a job per hour. By "job", I mean painting the entire fence. Notice that multiplying 1/5 by the number of hours she works will yield the value 1 to indicate one full job is done.

Through similar reasoning, Paul's rate is 1/6 of a job per hour.

Let x be the time, in hours, it takes Peter to get the job done if he worked alone. His rate is 1/x of a job per hour.

Combining the three individual rates gives

1/5 + 1/6 + 1/x = (6x)/(30x) + (5x)/(30x) + (30)/(30x)

1/5 + 1/6 + 1/x = (6x+5x+30)/(30x)

1/5 + 1/6 + 1/x = (11x+30)/(30x)

The expression (11x+30)/(30x) is the total rate if the three people worked together. This is assuming neither worker slows another person down.

Set this equal to 1/2 as this is the combined rate (based on the fact everyone teaming up gets the job done in 2 hours). Then solve for x

(11x+30)/(30x) = 1/2

2(11x+30) = 30x*1 .... cross multiply

22x+60 = 30x

60 = 30x-22x

60 = 8x

8x = 60

x = 60/8

x = 7.5

It takes Peter 7.5 hours, or 7 hours 30 minutes, to get the job done if he worked alone.

--------------

Here's another equation to solve though its fairly the same idea as above

1/5 + 1/6 + 1/x = 1/2

30x*(1/5 + 1/6 + 1/x) = 30x*(1/2) ... multiply both sides by LCD

30x(1/5) + 30x(1/6) + 30x(1/x) = 30x(1/2)

6x + 5x + 30 = 15x

11x + 30 = 15x

30 = 15x-11x

30 = 4x

4x = 30

x = 30/4

x = 7.5

We get the same answer

5 0
3 years ago
Read 2 more answers
When Carla looked out at the school parking lot, she noticed that for every 2 vans, there were 5 trucks. If there
gtnhenbr [62]

Answer:

60 trucks

Step-by-step explanation:

2x12=24

5x12=60

60+24=84 total vehicles

60 of them are trucks.

7 0
2 years ago
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