Quiz

The profit, in dollars, of a small business can be modeled by the function P(x) = 0.3x2 + 7x - 40, where x is the number of units sold. How many

units need to be sold for the business to make a profit of $60?

The number of units sold is 10.

Step-by-step explanation:

Given : The profit, in dollars, of a small business can be modeled by the function , where x is the number of units sold.

To find : How many  units need to be sold for the business to make a profit of $60?

Solution :

The profit, in dollars, of a small business can be modeled by the function

The profit is P(x)=60,

Using quadratic formula,

Here, a=0.3, b=7 and c=-100

Reject -33.33.

Therefore, the number of units sold is 10.

x > 1.3

step by step:

8.5−0.9x> 9.8−1.9x

step 1: simplify both sides of the inequality.

−0.9x+8.5> −1.9x+9.8

step 2: add 1.9x to both sides.

−0.9x+8.5+1.9x> −1.9x+9.8+1.9x

1x+8.5> 9.8

step 3: subtract 8.5 from both sides.

1x+8.5−8.5> 9.8−8.5

1x> 1.3

step 4: divide both sides by 1.

1x/1 > 1.3/1

2,160 π

step-by-step explanation: