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4 years ago

A 50 lb bag of flour costs $27. How much does 8 lbs of flour cost? Use a proportion to solve.

Mathematics

2 answers:

liubo4ka [24]4 years ago

8 0

Answer:

$4.32

Step-by-step explanation:

Make a proportion using this setup:

pounds/cost=pounds/cost

A 50 pound bag costs $27, and a 8 pound bag costs $x

50 lb/$27=8 lb/$x

50/27=8/x

Cross multiply

50*x=27*8

50x=216

We want to find what a 8 pound bag, will cost (x). To do this, we need to get x by itself.

Since x and 50 are being multiplied, divide both sides by 50

50x/50=216/50

x=216/50

x=4.32

A 8 pound bag of flour will cost $4.32

nataly862011 [7]4 years ago

6 0

Answer:

$4.32

Step-by-step explanation:

We want to write a proportion to solve

50 lbs 8 lbs

----------- = --------- -----

27 dollars x dollars

Using cross products

50x = 8*27

50x=216

Divide each side by 50

50x/50 = 216/50

x=4.32

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Step-by-step explanation:

To find the inverse, switch x and y, then solve for y

y=2^3-5x

x=2^3-5y

x-2^3=-5y

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6 0

3 years ago

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Burka [1]

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To make sure you got the right answer, you can check your work by plugging the result back into the question and seeing if both sides become equal. If both sides are equal, then the result is correct.
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4 0

3 years ago

Type the correct answer in each box. Use sigma notation to represent the following series for the first 10 terms. 3 + (-6) + 12

klemol [59]

Answer:

Kindly check attached picture

Step-by-step explanation:

Given the following :

First term (a) = 3

Second term = - 6

third term = 12

Fourth term = - 24