Select the statements which could describe the graph of a non proportional relationship.

Mathematics

1 answer:

mote1985 [20]3 years ago

3 0

The answer to this question is A and D

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The value of y is directly proportional to the value of x. If y = 65 when x =325, what it is the value of y when x = 30?*

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Answer is a - 6 because 325 divided by 65 is 5 so then 30 divided by 5 is 6

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ollegr [7]

Answer:

Volume of prism 1: 104 cubic inches

Surface area of prism 2: 650 square inches

Step-by-step explanation:

To find the volume of prism 1, set up a proportion using the side lengths and the volume of prism 2.

The ratio of the side lengths will be your scale factor. When finding volume using scale factor, you need to cube the scale factor. The numerator in the proportion are from prism 1 and the denominator is prism 2. Prism 1 is the numerator since it is the new image and we are solving for it's volume.

$(\frac {4}{10}) ^{3} =\frac{x}{1625} \\\\\frac{64}{1000} =\frac{x}{1625} \\\\$

$1000x=104000\\\frac{1000x}{1000} =\frac{104000}{1000} \\x = 104$

To find the surface area of Prism 2, we are going to setup another proportion, but this time we are going to square the scale factor since we are finding area. Prism 2 will be the numerator and prism 1 will be the denominator.

$(\frac{10}{4} )^2 = \frac{x}{104} \\\frac{100}{16} =\frac{x}{104} \\16x=10400\\\frac{16x}{16}=\frac{10400}{16}\\ x= 650$