1. n:7 = 90:15
answer → n = 42
step-by-step explanation →
solve the proportion using cross-multiplication
[tex]\bigg\downarrow[/tex]
n:7 = 90:15
= (90 × 7) ÷ (n × 15)
= 15n = 630
divide both sides of equation by 15
[tex]\bigg\downarrow[/tex]
630 ÷ 15 = 42
Answer → N = 42
2. 125:80 = p: 48
answer → 75
step-by-step explanation →
solve the proportion using cross-multiplication
[tex]\bigg\downarrow[/tex]
125× 48 = 6000
6000= 80p
divide both sides of equation by 80
6000 ÷ 80 = 75
Answer → P = 75
3. 5: n = 24: 96
answer → 20
step-by-step explanation→
5: n = 24: 96
solve the proportion using cross-multiplication
[tex]\bigg\downarrow[/tex]
480n = 24n
divide both sides of equation by 24
[tex]\bigg\downarrow[/tex]
480÷ 24 = 20
answer → n= 20
5. 44: 72 = h: 36
answer → h= 22
step-by-step explanation →
solve the proportion using cross-multiplication
[tex]\bigg\downarrow[/tex]
1584 = 72h
divide both sides of equation by 72
1584÷72 = 22
answer → h=22
