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3 years ago

Solve and check , -0.7x+2.8=-3.14x-5.2

Mathematics

1 answer:

dlinn [17]3 years ago

6 0

solving:

$( - 0.7 + 3.14)x = - 5.2 - 2.8$

$2.44x = - 8$

$x = \frac{ - 8}{2.44}$

now checking:

$- 0.7 \times \frac{ - 8}{2.44} + 2.8 = - 3.14 \times \frac{ - 8}{2.44} - 5.2$

$\frac{5.6}{2.44} + 2.8 = \frac{25.12}{2.44} - 5.2$

$\frac{12.432}{2.44} = \frac{12.432}{2.44}$

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The answer is below

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3 years ago

A Pharmacist whishes to mix a solution that is 6% Minoxidil. She has on hand 100 ml of 4% solution and wishes to add some 8% sol

Kaylis [27]

Answer:

She would need 100 ml of the 8% solution

Step-by-step explanation:

You can always answer these questions using a proportion. The numerator will represent the amount of Minoxidil, and the denominator will represent the total amount of solution

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We can multiply both sides by 100 for simplicity

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fiasKO [112]

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makkiz [27]

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Step-by-step explanation:

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If the given parallelogram is a rectangle,

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3 years ago

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3 years ago

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