Topic : Percents-Percent change!
1.
2.
from: category_eng

1.Mathematical Writing

Ans:

2.Understanding
M=1.6T, T=0.6J, x*J=M?

Ans: C

1.

2.

3.

4.
good question for the practice of mathematical expression
5.
calculation practice
6.
P*1.15=207 a=207/(1.15*15) Be cautious in calculation
7.
{1.5(q over100)}
8.
65/320, Can you guess?
9.
Use a number
75=X*80
10.
Use a number
9/108=X * 3/20
11.
150=X*90
12.

13.
Expression First! How can you express the final balance?
14.
express it by x and y.
15.
0.75*0.6*16
16.
1.25w*(x*T)=wT, 1.25x=1,
17.
.04g-.15d.. Is not enough
1.
2. c
3.
4.
good question for the practice of mathematical expression
{1.1*3000*(100) +10000}/1000
5. c
calculation practice
28= x *25 => 4*28=100 x
Check how much it is increased!
6. B
P*1.15=207 a=207/(1.15*15) Be cautious in calculation
7. A
Understanding
{1.5(q over100)}
8. c
Understanding
65/320, Can you guess?
9. B
Understanding
75=X*80
10. C
Understanding
9/108=X * 3/20
11. e
150=X*90
12.
13. B
Expression First! How can you express the final balance?
0.9*1.05*1.1($10000)
14. B
express it by x and y.
15. B
Understanding
0.75*0.6*16
16. B
Understanding
1.25w*(x*T)=wT, 1.25x=1,
17. E
.04g-.15d.. Is not enough