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DIRECTION:Find the missing term to make each ratio equal

1.3/7=9/__
2.5/7=__/35
3.4/5=8/__
4.__/5=15/25
5.12/__=36/45

DIRECTION:solve for n.

6.n/20=4/5
7.18/21=6/n
8.n/4=24/12
9.5:2=15:n
10.4:n=16:24

thanks


Sagot :

1) 3/7 = 9/21

3 × n = 3n

7 × 9 = 63

63 ÷ 3n = 21

2) 5/7 = 25/35

5 × 35 = 175

7 × n = 7n

175 ÷ 7n = 25

3) 4/5 = 8/10

4 × n = 4n

5 × 8 = 40

40 ÷ 4n = 10

4) 3/5 = 15/25

n × 25 = 25n

5 × 15 = 75

75 ÷ 25n = 3

5) 12/15 = 36/45

12 × 45 = 540

n × 36 = 36n

540 ÷ 36n = 15

6) n = 8

n/20 = 4/5

n × 5 = 5n

20 × 4 = 80

80 ÷ 5n = 8

7) n = 7

18/21 = 6/n

18 × n = 18n

21 × 6 = 126

126 ÷ 18n = 7

8) n = 8

n/4 = 24/12

n × 12 = 12n

4 × 24 = 96

96 ÷ 12n = 8

9) n = 6

5 : 2 = 15 : n

5 × n = 5n

2 × 15 = 30

30 ÷ 5 = 6

10) n = 6

4 : n = 16 : 24

4 × 24 = 96

n × 16 = 16n

96 ÷ 16n = 6

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