## Wednesday, June 8, 2011

### June Vacation Chap 9.2 RATE (L4) Self-Paced Learning

1. Mathematics Textbook 1B
(a) Go through Chapter 9 (p9 to p11)
(b) Attempt Exercise 9.2 Q1 to Q10.

2. ACELearning Portal: eLearning Portal
> Subject: Secondary 1 Express
> Ratio, Rate and Speed: Choose Rate

(a) Go through video lessons: Rate, Average Rate, Example 1, Example 2
Note: An email has been sent to all students via the AceLearning

1. Kat Yong Jie says this is strictly copyrighted so he6/11/2011 01:03:00 PM

1a) \$3.50
b) 72
c) 47
d) \$120
e) 4
f) 60

2a) \$23
b) \$920

3a) 9km/litre
b)\$1.20/litre

4a)87.5g
b) 1 3/7g

5a) \$15
b) \$150

6a) \$22.5
b) \$450

7a) 27 litres
b) 3 minutes

8a) \$26
b) 25g
c) \$78, 3kg

9a) \$201600
b) \$4200

10a) 19 8/27g
b) It weighs and has less mass than the pure gold cube side 3cm

2. Eh Yong jie, what if we have the same answer as you? You gonna sue us? And anything posted under comments is public.

3. 1. (a) \$3.5 (b) 72 (c) 47 (d) 80 (e) 4 (f) 60
2. (a) \$23/h (b) \$920/week
3. (a) 9km/liter (b) \$1.20/liter
4. (a) 87.5g (b) 0.7g
5. (a) \$15 (b) \$150
6. (a) \$22.5 (b) \$450
7. (a) 27 liters (b) 180s or 3min
8. (a) \$26 (b) 25-g (c) We need a 3kg pack fertilizer and we need \$72.
9. (a) \$201600 (b) \$4200
10. (a) 19.3g (b) No. This cube weighs less than the cube that was made out of pure gold.

4. 1) (a) 3.50 (b) 72 (c) 47 (d) 80 (e) 4 (f) 60
2) (a) \$23/h (b) \$920/wk
3) (a) 9km/L (b) \$1.20/L
4) (a) 87.5g (b) 1.42g/cm^3
5) (a) \$15/ticket (b) \$150
6) (a) \$22.50/m^2 (b)\$450
7) (a) 27L/min (b) 3 min
8) (a)\$26/kg (b) 25g (c) Mass: 3kg Cost: \$78
9) (a) \$201 600 (b)\$4200/m^2
10) (a) 19.3g/cm^3 (b) No. The cube has lesser mass than the mass of a pure gold cube of sides 2cm.

5. 1) a)\$3.50 b)72 c)47 d)80 e)4 f)60
2) a)\$23/h b)\$920/week
3) a)9L/km b)\$1.20/L
4) a)87.5g b)4.2g
5) a)\$15 b)\$150
6) a)\$22.50 b)\$450
7) a) 0.45L/s b)3minutes or 180 seconds
8) a)\$26/kg b)25g/m^2 c)\$78
9) a)\$201600 b)\$4200/m^2
10) a)19.3g b) No, the cube weighs less than how much it SHOULD weigh if it were pure gold as compared to the previous cube, therefore, it is NOT a cube made of pure gold

6. YESH. IT TOOK ME 40 mins to do it, rate: 40 mins/10questions =approximately 4 min/qns :D

7. We dont need to post it here la??
The teachers can simply check it up from the Ace learning submission or they dont need the answer cos is a P-R-A-C-T-I-C-E

8. Huh? What Ace-Learning submission and are you sure?

9. im very confused(matthewwong)6/26/2011 08:57:00 PM

I think i lost my maths textbook and i dont think i have recieved the email through ace learning so im not sure wat to do...

10. This comment has been removed by the author.

11. 1. a)3.50 b)72 c)47 d)80 f)60
2. a)\$23 b)\$920
3. a)9km/litre b)\$1.20
4. a)87.5g b)4.2g
5. a)\$15 b)\$150
6. a)\$22.50 b)\$450
7. a)27litres b)3min
8. a)\$26 b)25g c)3kg, \$78
9. a)\$201600 b)\$42000
10.a) 19.3g/ (b) No. The cube has lesser mass than the mass of a pure gold cube of sides 2cm if it is calculated

12. And I missed out 1e which should be 4.

13. 1.
a) \$3.50
b) 72
c) 47
d) 80
e) 4
f) 60

2.
a) \$23
b) 920

3.
a) 9km/L
b) \$1.20/L

4.
a) 87.5g
b) 4.2g

5.
a) \$15
b) \$150

6.
a) \$22.50
b) \$450

7.
a) 27L
b) 3 min

8.
a) \$26
b) 25g
c) 3kg
d) \$78

9.
a) \$201 600
b) \$4200

10.
a) 19.3g
b) No, the cube has less mass than the pure gold cube.