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Question

Jonathon spent 80 dollars more than 20 percent of his money on a pair of shoes. he then spent 30 more dollars than 25 percent of the rest of his money on mobile phone accessories. if Jonathon had 90 dollars left how much did he have at first?

in a rush thanks

Answer

Let u be the original amount he has.

Amount spent on shoes = 0.2u + 80

Remainder = 0.8u – 80  

Amount spent on phone accessories = 0.25 (0.8u – 80) + 30

Remainder amount = 90

u = 0.2u + 80 + 0.25 (0.8u – 80) + 30 + 90

u = 0.2u + 80 + 0.2u – 20 + 30 + 90

u – 0.4u = 180

0.6u = 180

u = 300

Hence at first, he has $300

PS: I need to go now..  If there are any more questions, can only reply after 2pm.

1 Reply 0 Likes ✔Accepted Answer

0.25 (0.8u – 80) + 3o

what do yo mean here

2 Replies 0 Likes

0.25 (0.8u – 80) + 3o

means 0.25 x  ( 0.8u – 80) + 30

This will expand into 

(0.25 x 0.8u) – (0.25 x 80) + 30

 

 

 

0 Replies 0 Likes

like what do you mean with the brackets with no operation around it??

0 Replies 0 Likes
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