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arielmajesty9107
19.09.2019 •
Mathematics
Ineed to find and write the equation for the problem.
layla wants to but a smart phone online using a $50 discount coupon along with a 20% discount on the original cost of the phone. layla can spend up to $150. write an inequality to find the original price of the smart phone she can afford.
(p = phone) variable i think it may be: (p-20%)-50 is less than or equal to 150 you
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Ответ:
0.8p < = 150 + 50
0.8p < = 200
p < = 200/0.8
p < = 250
the reason I set it up this way is because when it is 20% off, u r actually paying 80% of the original price (p)80% of the original price is written as 0.8p...then u subtract ur 50 dollar discount coupon...- 50and if all she can spend is 150it would be less then or equal to 150. So the most she can spend on the phone is 250
Ответ:
They were not correct it was bigger by 2.5 so the people were wrong