When asked to factor the trinomial 8x^2-8x-16) a student gives the answer (X - 2)(x + 1). What is one thing wrong with this answ
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Cost of 1 shirt is and cost of one sweater is
<u>Solution: </u>
Given that Jane’s buying clothes.
She can get 5 shirts & 4 sweaters for
She can get 2 shirts & 3 sweaters for
Need to determine cost of 1 shirt and 1 sweater.
Let assume cost of 1 shirt =
And assume cost of 1 sweater =
Let us create equations from give conditions
First condition is Cost of 5 shirt + cost of 4 sweater =
So using first condition equation which we get is as follows
Second condition is Cost of 5 shirt + cost of 4 sweater =
So using second condition equation which we get is as follows
Now we have two equations to be solved
On multiplying equation (1) by 2 and equation (2) by 5 to make coefficients of x equal in both equations, we get
On subtracting (3) from (4), we get
On substituting y = 26 in equation (1) we get
Cost of 1 shirt =
Cost of 1 sweater =