6 times 12 = 72 since there is 12 inches in a foot. Divide 72 by 4.5 and get 16 pieces
Set them up to equal each other
-7x + 2 = 9x - 14
16 = 2x
x= 8
plug in the x value into any of the two y equations
y= 9 (8) - 14
y=58
points (8, 58)
1) we calculate the total cost of all items:
Total cost=27 * $1.25 + 5 *1.99$ + 1*1.5$=$33.75 + $9.95 + $1.5=$45.2
2)we express the total cost in cents:
$1=100 cents
$45.2=$45.2 * (100 cents /$1)=4520 cents.
3)we divide 4520 cents among the number of pupils
Each student will pay=4520 cents / 26 =173.84... cents≈174 cents.
Answer: Each student will pay 174 cents.
Answer:
zero
Step-by-step explanation:
The answer to that question is best found by looking at the value of the <em>discriminant</em>.
For quadratic ax^2 +bx +c = 0, the value of the discriminant is ...
d = b^2 -4ac
Here, you have a=3, b=8, c=7, so the discriminant is ...
d = 8^2 -4(3)(7) = 64 -84 = -20
When the discriminant is negative, both solutions are complex (not real).
There are zero real solutions to this equation.
