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3 years ago

What is the value of y?

Mathematics

1 answer:

prohojiy [21]3 years ago

4 0

Answer:

Step-by-step explanation:

We know: measures of angles in a triangle add up to 180°.

Therefore we have the equation:

$\gamma+\gamma+72^o=180^o$ subtract 72° from both sides

$2\gamma=108^o$ divide both sides by 2

$\gamma=54^o$

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Write 2/4 in simplest form

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Divide both sides by their LCD, 2

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3 years ago

Mother is m years old, and she is four times as old as her daughter. How much older is the mother than her daughter?

yuradex [85]

The mother is older than her daughter by $\frac{3}{4}m$ years

Step-by-step explanation:

Mother is m years old, and she is four times as old as her daughter.

we need to find how much older the mother is than her daughter

Put the age of mother equal 4 times the age of daughter
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Subtract the age of daughter from the age of mother to find how much older the mother than her daughter

∵ The mother's age = m

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∴ m = 4 × daughter's age

- Divide both sides by 4

∴ $\frac{1}{4}m$ = daughter's age

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The mother is older than her daughter by $\frac{3}{4}m$ years

Learn more:

You can learn more about the fractions in brainly.com/question/1648978

#LearnwithBrainly

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3 years ago

Malik collects rare stamps and has a total of 212 stamps. He has 34 more domestic stamps than foreign stamps. Let x represent th

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Answer:

y = 89 x = 123

Step-by-step explanation:

since they're both in standard form, its easier to do the process of elimination

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now plug in y to any one of those two equations

x - y = 34

x - 89 = 34

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to check:

x + y = 212

123 + 89 = 212

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Step-by-step explanation:

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