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3 years ago

I need help ASAP !!!! What is 2x-1=3/4x+10 how do you solve it ???

Mathematics

1 answer:

MaRussiya [10]3 years ago

6 0

Answer:

x = 8.8 or x = 44/5

Step-by-step explanation:

1) Multiply both sides of the equation by 4, and cancel out the 4 on the bottom of 3/4, this turns the equation into: 8x - 4 = 3x + 40

2) Move the x to the lefthand side and change the side, do the same for the constant (4), this turns the equation into: 8x - 3x = 40 + 4

3) Combine like terms, subtract 8x from 3x and add 40 to 4: 5x = 44

4) Divide both sides by 5, and your answer is 44/5 (or 8.8 when converted to a decimal)

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3 years ago

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3 years ago

Which has a greater volume; two regular cans of soup, each with a diameter of 8 cm and a height of 10 cm or one family size can

Sophie [7]

Answer:

The two regular cans of soup has a greater volume than the family size can of soup

Step-by-step explanation:

step 1

Find the volume of two regular cans of soup, each with a diameter of 8 cm and a height of 10 cm

The volume is equal to

$V=2[\pi r^{2} h]$

we have

$r=8/2=4\ cm$ ----> the radius is half the diameter

$h=10\ cm$

substitute

$V=2[\pi (4)^{2} (10)]$

$V=320\pi\ cm^{3}$

step 2

Find the volume of one family can of soup, with a diameter of 10 cm and a height of 12 cm

The volume is equal to

$V=\pi r^{2} h$

we have

$r=10/2=5\ cm$ ----> the radius is half the diameter

$h=12\ cm$

substitute

$V=\pi (5)^{2} (12)$

$V=300\pi\ cm^{3}$

therefore

Compare the volumes

$320\pi\ cm^{3} > 300\pi\ cm^{3}$

The two regular cans of soup has a greater volume than the family size can of soup

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3 years ago

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