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bwright142
03.08.2019 •
Mathematics
Aslina was paid $2 for every bracelet she sold. for every 10 bracelets sold, she was given a bonus of $5. how many bracelets did she sell if she received $189?
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Ответ:
Step-by-step explanation:
Let the total number of bracelets sold be x
She gets 2 dollars for every bracelet sold. That means her earnings are at least 2*x,
Every 10 bracelets, she gets a bonus of 5 dollars.
5(x/10)
2*x + 5(x/10) = 189
2x + x/2 = 189
2x + 0.5x = 189
2.5x = 189
2.5x/2.5 = 189/2.5
x = 75.6 bracelets.
That 0.6 is trouble.
If you round down, you get 75 * 2.5 = 187.5 which is not enough
If you round up, you 76 * 2.5 = 190
Notice that there is a 2.5 difference between 187.5 and 190.
I would say that her boss only had 189 dollars to give her, but there is no real answer to this. If someone can see a mistake, take their answer.
Ответ:
x - 2 + 2x + 3x+5y + 8
Hope it helps