First off you need to take the square root of both sides and it leaves you with (x)(2x)= 15 then you multiple the x and it gives you 2x^2=15 then you divide by 2 and it gives you 7.5 then you take the square root of that to cancel the x^2 and it gives you x=2.7
It will take 15 weeks for both Jon and Matt to weigh the same.
Given:
Jon : 148 lbs and gain 2lbs a week
Matt : 193 lbs and lose 1lb a week
Find the number of weeks until they both weigh the same.
Jon = Matt
148 + 2w = 193 - 1w
2w + 1w = 193 - 148
3w = 45
w = 45/3
w = 15
To check:
148 + 2(15) = 193 - 1(15)
148 + 30 = 193 - 15
178 = 178
Answer:
It looks like "annie use your tellescope" or "indie flower" with hearts as I's and o's
The original price when Mr. Razali bought the laptop was $2500
Working backwards to solve the problem
If Mr. Azmi lost 20% when he sold the laptop for 2400, that means that he sold it for 80% of what he paid. If 2400 is 80% of what he paid, then to find out what he paid for it you would use this equation to determine what 100% would be:
cross multiply to get:
240000 = 80x
3000 = x
Mr. Azmi bought the laptop for $3000
Mr. Razali sold the laptop for a profit of 20%, which means he sold it for 120% of what he paid for it. To determine how much he bought it for we would use this equation:
cross multiply to get:
120x = 300000
x = 2500
Mr. Razali initially bought the laptop for $2500