solve these math problem
Answers
Answer:
question 3a) 55/1000 =0.055:1
b)78/100= 0.78:1
c)32/100=0.32:1
d)45/100=0.45:1
question 4a) 30%of260
=30/100×260
=3×26
=78
b)12 l=1200ml
75%of 1200ml
=75/100×1200ml
=75×12
= 900ml
c)6 1/4% of 1200m
=6×4+1/4of 1200m
=25/4% of 1200m
=25/400of 1200m
=25×3m
=75m
d)12.5% of 400
=125/1000×400
=50
e)0.25of 30
=25/1000×30
=0.75
e)0.25%of 16
=25/1000×16
= 0.4
question no 5 answer
a) let the percentage be x
x/100×4000m=800m
=40x= 800m
=x=800m/40
=x=20%
b)let the percentage be x
x/100×$20=$12
=$2x/10=$12
=$2x=$120
=x=$120/$2
x=60%
c)let the percentage be x
x/100×$32=$80
=$32x=$80×100
=$32x=$8000
=x=$8000/$32
=250%
d)let the percentage be x
x/100×1500m=360m
=15x=360m
=x=360m/15
=x=24%
e)let the percentage be x
x/100×7/2kg=25 kg
=7x/200=25kg
=7x=25kg×200
=7x=5000
=x =5000/7%
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