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Natalka [10]
3 years ago
9

a company sold 3,000 computers in one month, but 12 were returned. if 3,500 were sold the next month, the company would expect 1

4 to be returned. what is a valid proportion to represent the problem?
Mathematics
2 answers:
valentinak56 [21]3 years ago
8 0

Answer:


Step-by-step explanation:

Well for every 250 computers sold, 1 was returned. So if you multiply 12x250 you'd get 3,000. So 14x250 is 3,500. Or you could do 3,000 divided by 12 and you'd get 250. Same thing if you do 3,500 divided by 14.


frez [133]3 years ago
4 0

Answer:

On edginuity it's D

Step-by-step explanation:

Just took the test <3

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What are the variables for question 5, problem a, I don't quite understand.
valentinak56 [21]
One variable is the amount of time it takes her to make a plate. The other variable is the amount of time it takes her to make a cup.
8 0
3 years ago
Theresa earned scores of 88 points, 84 points, 88 points, and 91 points on four tests. What is the lowest score she can get on t
Yanka [14]
So u will do 88+84=172+88=260+91=351 and that is all four tests added up now u have to divide the answer by 4 because it was four tests averages
351/4=87.75 wich is aproxamately 88 
so with all four of them added wich is 351 u will add the answer choices so 351+96=447/5=89.4 wich is aproxamately 89
351+97=448/5=89.6 wich is aproxamately 90
351+98=449/5=89.8 wich is aproxamately 90
351+99=450/5=90
so i would say that 99 points is the one she needs to score because it isnt asking for aproxamately 
so it is 99 points
6 0
2 years ago
Read 2 more answers
Help!!!!!!!!!!!!!!!!!!!
Furkat [3]
Here, (7 * 9) = (7 * 10) - (7 * x)

Here, Take 7 as a common factor according to distributive property:

= 7(10 - x)

Now, 10-x = 9
x = 10-9 = 1

In short, Your Answer would be 1

Hope this helps!
3 0
3 years ago
Find the formula for the area A and the perimeter P of the shape shown find the area and perimeter when R is 5 cm find R when A
Ghella [55]

Answer:

1)Area; A = ¼πr²

Perimeter; P = πr/2 + 2r

2)A = 19.63 cm²

P = 17.85 cm

3) r = 8.885 cm

4) r = 14 cm

Step-by-step explanation:

This is a quadrant of a circle. Thus;

Area of a circle is πr². A quadrant is a quarter of a circle. Thus;

Formula for Quadrant Area is; A = ¼πr²

A) Perimeter of a circle is 2πr. Thus, perimeter of a quadrant is a quarter of the full circle perimeter.

Formula for the quadrant perimeter in the image given is;

P = 2πr/4 + 2r

P = πr/2 + 2r

B) When r is 5 cm;

A = ¼π(5)²

A = 19.63 cm²

P = π(5)/2 + 2(5)

P = 17.85 cm

C) when A is 100cm²:

¼πr² = 100

r² = 100 × 4/π

r² = 78.9358

r = √78.9358

r = 8.885 cm

D) when P = 50 cm.

50 = πr/2 + 2r

50 = (½π + 2)r

r = 50/(½π + 2)

r = 14 cm

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2 years ago
Find the area of a circle with a diameter of 4.
Oliga [24]

area of circle =22/7×4=12.56

6 0
2 years ago
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