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3 years ago

How to solve using fraction 0.75×2.1

Mathematics

1 answer:

torisob [31]3 years ago

3 0

1.575 = 0.75 • 2.1
1.575 as a fraction is 63/40 or 1 23/40

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A chef plans to mix 100% vinegar with Italian dressing. The Italian dressing contains 12%

Hitman42 [59]

Answer:

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Amount of Italian dressing: 140 milliliters

Step-by-step explanation:

Let's call A the amount of vinegar. 100%

Let's call B the amount of Italian dressing . 12% vinegar

The resulting mixture should have 23% vinegar, and 160 milliliters.

Then we know that the total amount of mixture will be:

$A + B = 160$

Then the total amount of pure antifreeze in the mixture will be:

$A + 0.12B = 0.23 * 160$

$A + 0.12B = 36.8$

Then we have two equations and two unknowns so we solve the system of equations. Multiply the first equation by -1 and add it to the second equation:

$-A -B = -160$

$A + 0.12B = 36.8$

--------------------------------------

$-0.88B = -123.2$

$B = \frac{-123.2}{-0.88}$

$B = 140\ milliliters$

We substitute the value of B into one of the two equations and solve for A.

$A + 140 = 160$

$A = 20\ milliliters$

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3 years ago

The following system has no solutions: y=4x+5 and y=2x+3 True False

Hitman42 [59]

False, both lines are oblique (diagonal) so they meet at some point on a graph. They can only have no solutions if the lines are parallel/have the same slope.

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3 years ago

A. 140° B. 300° C. 220° D. 180° E. 320°

kvasek [131]

Answer:

140

Step-by-step explanation:

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2 years ago

What is the answer to (3 × 144) × 199

vlada-n [284]

Answer:

The answer will be 85,968

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Milo is a running back on his middle school football team. On his first running play he netted -8 yards, and on his second runni

lidiya [134]

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Hope this helps!

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3 years ago