Cherishvanityablazaviz
Answered

ratios proportion
Example
: - 20-S4 --27
1. 4:8-12: n
2. n:7-22
3. 4. n-24.36
5.​

Sagot :

Jczapata28viz

n:20=54:27

n/20=54/27

n=54/27×20

n=2×20

n=40

1.

4:8=12:n

4/8=12/n

n×4/8=12

n=12/4/8

n=12×8/4

n=96/4

n=24

2.

n:7=22

n/7=22

n=22×7

3.

4:n=24:36

4/n=24/36

n/4=36/24

n=36/24×4

n=3/2×4

n=12/2

n=6