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Question 1

The price of an alarm clock is $200. If the price decreases by $60, what is the percentage decrease in price?

Question 2
If Mr.Chan's salary is increased by 10%, it would become $11000. What is his salary?

Question 3
The population of a city is originally 6 800 000. If the population increases steadily at a rate of 2% each year, what will be the population next year?

2006-11-09 11:41:37 · 4 個解答 · 發問者 happy_happyloklok 1 in 教育與參考 小學及中學教育

4 個解答

Q1:(60/200)X100%=30%
Q2:(11000) / (110/100)=$10000
Q3:(6 800 000 X 2%)+6 800 000=6 936 000

2006-11-09 11:53:42 · answer #1 · answered by Niko 2 · 0 0

Question1 = 30% 2= 10000 3=6936000

2006-11-09 11:51:01 · answer #2 · answered by HI 6 · 0 0

Question 1

Original price: $200
Discounted price: $200-$60=$140
Percentage decrease= $60/$200 X 100%
= 30% decrease
Question 2

Increased salary = 110% = $11000
Therefore original salary = 100% = $10000

Question 3
Original population = 6 800 000
Yearly increase = 6 800 000 X 0.02 (2%)
= 136 000
Next year's population = 6 800 000 + 136 000
= 6 936 000

2006-11-09 11:49:46 · answer #3 · answered by Jeremy Lee 4 · 0 0

why people always post HW in here???

q1. hits $200-$60=??? and decrease value/org value= percentage decrease.

q2. 10% increaed right? so....become 100%+10%=?????
$11000/ ????= answer.

q3. so next year is 100%+2%=??????
the same la...but this time use x .....i think u can do it now

p.s. remember all is % 100%=1

2006-11-09 11:49:32 · answer #4 · answered by Anthony 2 · 0 0

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