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2 years ago

PLEASE HELP!!!! Solve 2/3x -1/5 > 1 x > ____

Mathematics

1 answer:

Brums [2.3K]2 years ago

4 0

Answer:

$x>\frac{9}{5}$

Step-by-step explanation:

$\frac{2}{3} x-\frac{1}{5} >1\\\\\frac{2}{3} x>\frac{6}{5} \\\\x>\frac{18}{10} \\\\x>\frac{9}{5}$

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Likurg_2 [28]

We have 55% and 80% antifreeze. We need 90 gallons of 75%.

F - 55% and E - 80%

A) F + E = 90

B) .55 F + .80 E = 67.50 (which is .75 * 90) Multiplying A) by -.55

A) -.55 F -.55 E = -49.50 (which is -.55 * 90) then adding A) & B)

.25 E = 18

E = 72 gallons of 80% and

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********* DOUBLE CHECK ******************

72 * .80 = 57.60 and 18 * .55 = 9.90

57.60 + 9.90 = 67.50 gallons of antifreeze and we have 90 total gallons

(67.50 / 90) * 100 = 75% correct!

Source: 1728.com/mixture.htm

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3 years ago

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Answer:

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Step-by-step explanation:

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Step-by-step explanation:

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Answer:

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