Respuesta :
112 is what it should be set less than or equal to because she needs at least this much money for the dress. So 112 should be equal to or less than the amount she earns total. 112≤? On the other side you need to put 40 because this is what she already has. You need to add 40 to 9x, x being the amount of hours she works. so your inequality is 112 ≤ 9x +40.
From there subtract 40 on both sides and then divide by 9. Your answer should be 8 hours.
From there subtract 40 on both sides and then divide by 9. Your answer should be 8 hours.
she will need to babysit to buy the dress for at least 8 hours.
What is inequality?
A statement of an order relationship—greater than, greater than or equal to, less than, or less than or equal to—between two numbers or algebraic expressions.
Matilda needs at least $112.
Let Matilda do the babysitting of x hours.
Her earnings from baby sitting will be 9x.
She saved $40.
Total amount she is having= 40+9x.
As, she need at least $112.
So, the inequality will be
112 ≤ 9x +40.
112-40 ≤ 9x
72≤ 9x
8≤ x
Hence, she will need to babysit to buy the dress for at least 8 hours.
Learn more about inequality here:
https://brainly.com/question/20383699
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