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Alisiya [41]
2 years ago
7

Pls help if you only know the answer thanks! :)

Mathematics
2 answers:
Ksju [112]2 years ago
8 0

Answer:

C-0.1

Step-by-step explanation:

0.1 is between -3.8 and 0.

Hope can help you.

zhenek [66]2 years ago
7 0
The correct answer is C
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Gina is a certain age (g). Gina's older sister is twice Gina's age. Gina's brother is half Gina's age. The sum of their ages is
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Answer:

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Step-by-step explanation:

First,  we will have to write these statements mathematically and then solve.

Let Gina's age be x, let Gina's brother's age be y and let Gina's sister's age be z.

The second statement"Gina's older sister is twice Gina's age" can be mathematically written as: z =2 x ---------------------------(1)

The next statement "Gina's brother is half Gina's age" can be mathematically written as y = \frac{x}{2} ---------------------------------------(2)

Then the next statement "the sum of their ages is 42" can be mathematically written as: x + y + z = 42 ----------------------------(3)

We can now proceed to solve;

Substitute equation (1) and equation(2) into equation (3)

x + y + z = 42

x +  \frac{x}{2} + 2x = 42

Multiply through by 2

2x + x + 4x = 84

7x = 84

Divide both-side of the equation by 7

\frac{7x}{7} = \frac{84}{7}

x = 12

Therefore, Gina is 12 years old

7 0
3 years ago
"Express the difference in the measures of center as a multiple of each measure of variation. Round your answers to the nearest
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Step-by-step explanation:

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2 years ago
Pretty ez ngl but need help extra points
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Answer:

Concept: Algebraic Manipulation

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3 years ago
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