The answer is 600 because 1 out 3 is 60 so to find the bag multiply by two while to find 1 out 5 of her monet take 60 times 3 which is 180. 180 times 4 is the money she spent on her mobile phone so take the money spent on her mobile phone(720)minus the amount of money spent on the bag(120)
3 6/10÷ 9
36/10×1/9
36/90
.4<1
(Less than)
Hope this helps!
The answer would be 13.9 kg of gravel used per square meter
- 16:10
- 24:15
- 40:25
8:5 is just a simplier version of these other ratios