9) Every integers less than zero has the sign of___
a- + b- × c- - d- ÷
Tn proportion first and last terms are called --
(a) Mean terms (b) Extreme terms (c) Middle terms
(d) none of these
10. Representation of data in the form of pictures is called
(a)Bargraph (b) Pictograph (c) Histogram (d) None of these
11. Express 70km 5m as km using decimals
OR
[1]
Express 176mm as cm using decimals.
12. The tally mark the IIII indicates frequency--
13. Find the perimeter of an equilateral triangle of side 9cm.
14. Find the area of square whose side is 5m.
15. A basket has y mangoes. How many mangoes are there in 5 such baskets?
16. Give expression for y is multiplied by 5 and the result is subtracted from 16
17 Find the ratio of 90 cm to 1.5 m
18. Write the number of lines of symmetry of a regular hexagon
19. The perimeter of regular pentagon is 30cm, the length of each side will be------
20 Are the ratios 25g:30g and 40kg:48kg in proportion or not?
Answers
Answer:
9) Every integer less than zero has - sign (negative sign)
These are known as mean terms
10) Pictograph
11) 1km = 1000m
1m = 1/1000 km
Therefore, 5m = 5/1000 km = 0.005km
So, 70 + 0.005 = 70.005km
12) Yes, it indicates the frequency
13) Perimeter= 3 × side
=( 3 × 9)cm
=27cm
14) Area of square = 4× side
=4 × 5 = 20 sq.m
15) Total mangoes in 1 basket = y
Total baskets = 5
Total mangoes in 5 baskets = 5y
16) y multiplied by 5= 5y...........then subrated from 16 = 16 - 5y
17) 90cm to 1.5m
1.5 m = 1.5 × 100 cm
= 150cm
Ratio = 90/150 = 30/50 = 3/5
ratio is 3:5
18) There are 6 lines of symmetry.
19)Pentagon has 5 sides.
Therefore, 5 × a = 30
a = 6cm
20) 25/30 = 5/6
40/48 = 20/ 24 = 10/ 12= 5/ 6.......yes they are in proportion..
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