1.
The cost of three books and five pens is 140, while
the cost of four books and seven pens is 190.
Find the cost of two books and three pens.
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Answered by
3
Answer:
60
30
Step-by-step explanation:
I hope it helps...
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Answered by
2
Step-by-step explanation:
This question was of a linear equation in two variables form. First we took variables for the amount of books and pens. Then we considered the situation and created equations. We then solved the equations using substitution method. At last we equated the values obtained to get the required answer. The above solution is a step by step one. Please check.
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