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katen-ka-za [31]
2 years ago
14

Using your own words, explain direct and inverse proportionality. (Be sure to use complete sentences.)

Mathematics
2 answers:
Lerok [7]2 years ago
7 0
The number of pencils is directly proportional to the cost. ... Two values x and y are inversely proportional to each other when their product xy is a constant (always remains the same). This means that whenx increases y will decrease, and vice versa, by an amount such that xyremains the same.
ANEK [815]2 years ago
7 0

Answer:

if y is directly proportional to x with constant of proportionality k

y=kx

if y is inversely proportional to x with constant proportionality k

y=k/x

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a kitchen is shaped like a rectangle with dimensions of 4ft by 7ft. The floor of the rooms is made up of square tiles with a sid
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Answer:

112 tiles

Step-by-step explanation:

Area = 28ft sq

Tiles are 1/4 each sqft

We are working cube square inside cube ft square = 1 sq /4 (for multiplier).

= 4 x 28 = 112

112 x 0.25 = 28 to check.

112 x 0.25 x 4 = 112 is the multiplier to check again.

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Step-by-step explanation:

8 0
3 years ago
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Mindy, a local artist, sells a piece of art at the pizza shop for $15, and the shop takes 15 percent commission. Instead of rece
Yuliya22 [10]
In this question the first thing that needs to be determined is the commission taken by the pizza shop and the amount of money that falls in the part of Mindy.
We already know that Mindy sells the piece of art for $15 and the pizza shop takes 15% commission on it.
Then
Commission taken by the pizza shop = (15/100) * 15
                                                             = 225/100
                                                             = 2.25 dollars
So the pizza shop takes a commission of $2.25 from the sales of each art piece from Mindy.
Then amount that falls in Mindy's part = (15 - 2.25) dollars
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Now Mindy is not taking the money but taking a pizza worth rupees $12 including 5% sales tax.
Initially it looks like Mindy is making a profit of $0.75 plus the pizza worth $12. So it is a fair deal for Mindy. Now coming to the part of the pizza shop owner, we find that he also gains extra $2.25 from this deal. So it is a fair deal for both the shop keeper and Mindy.
4 0
3 years ago
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Square ABCD and isosceles triangle EFG have the same perimeter. Work out the length of FG.
s344n2d4d5 [400]

Answer:

8

Step-by-step explanation:

3 0
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