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NISA [10]
3 years ago
7

Maggie's brother is 3 years younger than twice her age. The sum of their ages is 36. How old is Maggie? Maggie is years old.

Mathematics
1 answer:
Triss [41]3 years ago
4 0

Answer:

Maggie is 13 years old.

Step-by-step explanation:

Maggie's age is: x

Maggie's brother's age is: 2x - 3

The sum of the ages = 36

x + 2x - 3 = 36

3x - 3 = 36

3x = 39

x = 13

Answer: Maggie is 13 years old.

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labwork [276]
1. By definition, the sum of the Suplementary angles is 180° and the sum of the Complementary angles is 90°. Keeping this on mind, you have:

 90-x (The complement of the angle)
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 "x" is the angle that you want to calculate.

 2. Then, you have:

 3(90-x)+30=180-x
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6 0
3 years ago
A school has 840 pupils, if the school hall has seats 85% of the pupils, how many pupils will have no seats?​
ioda

Answer:

126

Step-by-step explanation:

So theres 840 people and 85% got a seat

We just do 840 * 85% = 714

then to find the people without the seat

840 - 714 = 126

3 0
3 years ago
Tammy is saving money in a bank that charges a fee if the account is inactive for an extended period of time. The equation y=200
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2000 is the y-intercept, it is the amount of money in the account initially.

<h3>Exponential function</h3>

An exponential function is in the form:

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Let y represent the amount in the bank after x years.

Given the function y=2000(0.64)ˣ

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a = 2000, b = 0.64

0.64 = 1 + x

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2000 is the y-intercept, it is the amount of money in the account initially.

Find out more on Exponential function at: brainly.com/question/12940982

7 0
2 years ago
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Parenthesis always comes first, then exponents, multiplication and division, adding and subtracting
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