Three parking attendants are required to park cars for each blue lot , while two can handle each red lot. of the 15 lots that will be used for tonight, 60% are blue and 40% are red. how many parking attendants are required for tonight's event

Step-by-step explanation:

Let

x -----> the number of blue lots

y-----> the number of red lots

we know that

------> equation A

we have that

The total parking attendants required for tonight's event is equal to the product of the number of blue lots by three plus the product of the number of red lots by two

so

answer: the answer is 127 degrees

x= -3 and

step-by-step explanation:

to find the roots of a cubic, use division or factoring to find the factors then set equal to 0. as this is a difference of cubes, it factors into

where a is the cube root of .

here   this is 27 and the cube root of 27 is 3. so we write using the form:

.

set each factor to 0 and solve for x.

x-3=0

x=3

the quadratic expression does not factor and must be solved using the quadratic formula.

where a = 1, b=3, and c=9

this cubic has two complex roots.