Question

Hallie used s birthday money check after her mother gave her to start a savings account. She plans to save $25 per month as well. After nine months hallie has $300 write and solve a linear

Answer 1

Let the money she got be X

thus,

X+9(25)=300(equation)

thus,X+225=300

thus,X+225-300=0

thus,X-75=0

thus,X=75

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Answer 2

Hallie mother gave her $75 on her birthday.

Step-by-step explanation:

Given:

Money Hallie has = 's'

Each month savings = $25

Total Saving after 9 months = $300

Number of months = 9

We need to write and solve the linear equation for amount of money Hallie's mother gave to start savings account.

Solution:

We Know that;

Total Saving is equal to sum of Money she had and Each month savings multiplied by number of months.

Framing in equation form we get;

$s+25\times9 = 300$

Hence The Linear equation is $s+25\times9 = 300$.

On solving the equation we get;

$s+225 =300$

Subtracting both side by 225 using Subtraction Property of equality we get;

$s+225-225 =300-225\\\\s =\ 75$

Hence Hallie mother gave her $75 on her birthday.