saintsfan2004
03.04.2020 •
Mathematics
7) Brenda spent $19 on a magazine and some
erasers. If the magazine cost $4 and each
eraser cost $5, then how many erasers did
she buy?
Solved
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Ответ:
ANSWER :
she bought 3 erasers
EXPLANATION :
By subtracting the price payed for the magazine with the total you spent you get $15
example. 19 - 4 = 15
then divide the remaining with the price of the erasers
example. 15 ÷ 5 = 3
Ответ:
(2x-3)(x+1)
Step-by-step explanation:
2x²-x-3
(2x-3)(x+1)