The number of girls who work at super shopper is 2 more than 3 times the number of boys. if 30 boys work at super shopper, how many girls work there

92 girls work at the Super Shopper.

92 girls

Step-by-step explanation:

Given: The number of girls who work at Super Shopper is 2 more than 3 times the number of boys.

To Find: If 30 boys work at Super Shopper, how many girls work there.

Solution:

let number boys working at super shopper is

let number girls working at super shopper is

Now,

the number of girls working at super shopper

The number of boys working at super shopper

putting value,

The number of girls working at super shopper are

x² + 3x + 7 = 0       [ax² + bx + c]

a = 1

b = 3

c = 7

quadratic formula:

    (+/- is this ±)

plug in the numbers into the variables

your answer is a