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2 years ago

The measure of an angle is two times the measure of a supplementary angle. what is the measure of each angle

1 answer:

5 0

Let the angles be x and (180-x).

Let 2x = 180-x.

Then 3x = 180, and x = 60. One angle is 60 degrees and the other is 180-60, or 120, degrees.

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Step-by-step explanation:

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2 years ago

Jess has 60 ounces of an alloy that is 40% gold. How many ounces of pure gold must be added to this alloy to create a new alloy

tia_tia [17]

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84 ounces of pure gold

Step-by-step explanation:

Jess has 60 ounces of an alloy that is 40% gold. How many ounces of pure gold must be added to this alloy to create a new alloy that is 75% gold?

Pure gold = 100% gold

Let the number of ounces of pure gold = x

Hence, we have the equation

40% × 60 ounces + 100%× x ounces = 75%(60 + x)ounces

= 0.4 × 60 + 1x = 0.75(60 + x)

= 24 + x = 45 + 0.75x

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2 years ago

Solve y=x²+7 for x for apexvs homeschool 2019

Molodets [167]

Hello!

To solve for x means to isolate x:

y = x^2 + 7

y - 7 = x^2

sqrt(y - 7) = x

Answer:

x = sqrt(y - 7)

Hope this helps if it did please make brainliest!

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3 years ago