Question

the coach of a cricket team buys 3 bats and 6 balls for rp 3900.later she buys another bat and 3more balls of the same kind for rp 1300.represent this situation algebraically and geographically.
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Answer 1

Answer:

if x represents bats, and y represents balls:

3x + 6y = 3900

x + 3y = 1300

We can solve this simultaneously, by taking either x or y the subject from any of the two equations and putting its value in the other equation.

lets make x the subject from x + 3y = 1300:

x = 1300 - 3y

So lets put this value of x in the other equation that is 3x + 6y = 3900:

3(1300 - 3y) + 6y = 3900

3900 - 9y + 6y = 3900

-3y = 0

y = 0

So now we know that y (a ball) is of 0rs (free), now we can put 0 in place of y in the equation above that is x = 1300 - 3y:

x = 1300 - 3(0)

x = 1300

A bat is of 1300rs, and a ball is free of cost.

Answer 2

Answer:

bat is 1300 r and ball is free of cost