SOLUTIONS Note: Many solutions are written statements rather than just numbers. This is to encourage teachers and students to solve problems in this way.
FARM TRAILS.....................................................Page 49 1. 10 200 m or 10 km 200 m 2. 3370 cm or 33 m 70 cm
6. either store 7. DVD Rentals 8. (a) No (b) Yes
BALANCING........................................................Page 50
DRIVE TIME.........................................................Page 54
roll
6 rolls
loaf
4 rolls 2 loaves
Total
0.50
3.00
1.20
2.00
2.40
5.40 – too little
0.40
2.40
1.80
1.60
3.60
5.20 – too little
0.35
2.10
2.10
1.40
4.20
5.60 – too much
0.30
1.80
2.40
1.20
4.80
6.00
1. 36 cm2 2. 64 cm2 3. 80 cm2
DVD RENTALS....................................................Page 53 DVD Easy
(b) Car Two
Hours open
ew i ev Pr
SQUARES AND AREA........................................Page 51
0
11:00 am to 8:00 pm
9
Wednesday
11:00 am to 9:00 pm
10
Thursday
10:00 am to 9:00 pm
11
Friday
11:00 am to 10:00 pm
11
Saturday
10:00 am to 10:00 pm
12
Sunday
11:00 am to 9:00 pm
10
w ww
Total hours
63
m . u
© R. I . C.Publ i cat i ons •f orr evi ew pur posesonl y• CLOSED
Tuesday
(e) No
1. (a) Car One
A loaf of bread costs $1.80. A bread roll costs 30 c.
Monday
(d) Yes
r o e t s Bo r e p ok u S 6 rolls and 1 loaf costs $4.20
Teac he r
1. 7 lychees 2. $2.40 3. 30 cents
(c) Yes
Monday
11:00 am to 9:00 pm
10
2. (a) (4, 4) (3, 4) (3, 5) (1, 5) (1, 3) (3, 3) (3, 2) (1, 2) (1, 1) (4, 1) (4, 3) (6, 3) (b) (6, 4) (3, 4) (3, 6) (1, 6) (1, 3) (2, 3) (2, 1) (4, 1) (4, 5) 3. Answers will vary
Tuesday
11:00 am to 9:00 pm
10
CLOCK WATCHING ...........................................Page 55
Wednesday
CLOSED
0
1. (a)
Thursday
11:00 am to 9:00 pm
10
Friday
11:00 am to 11:00 pm
12
Saturday
10:00 am to 11:00 pm
13
Sunday
11:00 am to 9:00 pm
10
. te
DVD Rentals
Hours open
o c . che e r o t r s super
Total hours 1. 2. 3. 4. 5.
2 hours 11:00 pm 10:00 am DVD Rentals Saturday
R.I.C. Publications®
www.ricpublications.com.au
65
2. 3.
(b) (c) (a) (b) (c) 175
0:12, 0:21, 0:19, 0:29, 1:02, 1:20, 1:09, 1:29, 2:01, 2:10, 2:09, 2:19, 9:01, 9:10, 9:12, 9:21, 9:02, 9:20, 10:29, 12:09, 19:02, 19:20, 20:19 12:09 0:12 7 168 7
Problem-solving in mathematics
65