Ax^2+bx+c=0
find what 2 numbers multiply to get c and add to get b
x^2-4x-12
b=-4
c=-12
x times y=-12
x+y=-4
factor -12
-1, 12
-2,6
-3,4
add
-1+12=11
-2+6=4
-3+4=1
the one that works is -2 and 6 because they can be reversed to make -6 and 2 which multiploy to get -12 and add to get -4 so
split it up into
x^2-4x-12=(x-6)(x+2)=0
set each to zero
x-6=0
add 6
x=6
x+2=0
subtract 2
x=-2
x=6 or -2
Let x represent the amount of money Sophia can spend on party favors.
x = amount of money Sophia can spend
$2.75 = amount spent per person
6 = amount of people
Equation:-
x ÷ $2.75 = 6
Now lets solve for x :-
To solve for x we will use d INVERSE OPERATION of division which is multiplication. Lets do it:-
x ÷ 2.75 = 6
6 × 2.75 = x
6 × 2.75 = 16.50
x = 16.50
CHECK OUR WORK:-
x ÷ 2.75 = 6
x = 16.50
16.50 ÷ 2.75 = 6
We were RIGHT!!
So, our equation for dis question would be x ÷ 2.75 = 6. When we solve for x, x = 16.50. Sophia can spend $16.50 on her party favors for 6 people.
Hope I helped ya!! xD
Let c represent the total number of chairs in all of the meeting rooms at the hotel.
325M = C
325 (#of chairs per meeting room) M (# of meeting rooms) = C total # of chairs at the hotel
Answer:
the answer is false because it will always be a odd number
