four motorcycles gas tanks are filled with 2/5L of gasoline each. if he will add 3/4L of gasoline good for four tanks how much liter of gasoline do the motorcycles have in all
plss help me
plss help me
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Answer:
47/20 or 2 7/20 L
Step-by-step explanation:
4 x 2/5
= (4x2)/5
=8/5 liter of gasoline for all motorcycles before 3/4L is added
If 3/4L is added,
8/5 + 3/4
= ((20÷5)x8)/20 + ((20÷4)x3)/20
= 32/20 + 15/20
= (32+15)/20
= 47/20 or 2 7/20 L