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3 years ago

A mother's age is three less than three times her daughter's age. The sum of their ages is 45. What is the daughter's age?

1 answer:

6 0

Given:
mother's age = 3x - 3
daughter's age = x
total of their ages = 45

Mother's age + daughter's age = 45
3x - 3 + x = 45
4x = 45 + 3
4x = 48
4x/4 = 48/4
x = 12 daughter's age. CHOICE B.

mother's age : 3x - 3 = 3(12) - 3 = 36 - 3 = 33

To check:
mother's age + daughter's age = 45
33 + 12 = 45
45 = 45

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3 years ago

A random sample of 121 automobiles traveling on an interstate showed an average speed of 73 mph. from past information, it is kn

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That's probably the answer they're looking for.

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2 years ago

Four times the sum of some number plus 3 is equal to 8 times the number minus 12

Stells [14]

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Step-by-step explanation:

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2 years ago

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Step-by-step explanation:

Given

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2 years ago

QUESTION in the diagram below the following are rectangles. ACEG ;BCDJ ; JDEF and HJFG is a square AB =AH = x ;BC=5 ; HG=3 Area

White raven [17]

The area of the rectangle ACEG is the amount of space on it, and the area of square HJFG is 9 square units

<h3>How to determine the area of the figures?</h3>

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<em>Note that the other areas cannot be calculated because the question is incomplete</em>

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