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Sagot :
She can buy 143 barrettes because 450-28= 422 and you take 422 and divide by 2.95 by turning it into 295/ 42200 and you get 143.05 and so on but you can't split up barrettes so you round it to 143 not 144 cause that will be going over the limit
By using PEDMAS rule, 143 barrettes can she buy without going over the limit of the card.
What is PEDMAS rule?
PEDMAS rule states that the order of operation starts with the parentheses first or the calculation which is enclosed in brackets. Then the operation is performed on exponents(degree or square roots) and later we do operations on division & multiplication and at last addition and subtraction.
According to the question
Erin has a $450 gift card from a clothing store.
She has spent a total of $28 so far.
She wants to buy barrettes for $2.95 each.
Rewriting in mathematical form
= (45 - 28) ÷ 2.95
By using PEDMAS rule, first operation is to solve the parentheses
= 422 ÷ 2.95
Next operation is to solve the division
≅ 143
Thus, 143 barrettes can she buy without going over the limit of the card.
Find out more information about PEDMAS rule here
https://brainly.com/question/24086845
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