Astore has a
40% off sale on headphones. with this discount, the price of one pair of headphones is
$36.
what is the original price of the pair of headphones?

$60

Step-by-step explanation:

If you received 40% off then you paid 60% of the price. To find the original price, write a proportion.

Solve by cross multiplying.

60y = 3600

y = 60

the answer is 175.4379

step-by-step explanation:

infinitely many solutions

step-by-step explanation:

we have been given the equation;

2(2x + 3) = -4 + 2(2x + 5)

we need to determine the value of x.

2(2x + 3), we expand this expression to obtain 4x + 6

similarly 2(2x + 5) will become 4x + 10

now we have;

4x + 6 = -4 + 4x + 10

4x + 6 = 4x + 10 - 4

4x + 6 = 4x + 6

the expression on the left hand side is identical to the one on the right hand side. therefore, we are looking at just a single straight line whose equation is;

y = 4x + 6

consequently, we shall have infinitely many solutions