L=16
W=21
Set up a systems of equations:
x=length
y=width
xy=336
x+5=y
Use substitution to solve:
x(x+5)=336
x^2+5x=336
Solve using factoring:
x^2+5x-336=0
(x-16)(x+21)=0
x=16 and x= -21
Since length can't be negative, l=16
To find width, plug length into the first equation:
(16)y=336
y=21
So...
L=16
<span>W=21</span>
27 3/4 + 2 1/4
15 1/3 + 14 2/3
Answer: 50 miles
Step-by-step explanation:
ok 1 inch = 16 miles
its 2 1/4 inches from coopertown to center city
16 x 2.25 = 36 miles
then it is 7/8 of an inch to reedville
16 x 7/8 = 14 miles
from coopertown thru center city to reedville it would be
36 miles + 14 miles = 50 miles
Given a quadratic equation in standard form
The discriminant D
tells the types of roots the equation has.
In this case, we have
Then, the discriminant of this quadratic equation will be
Finally, the value of discriminat is 49 and as he discriminant is greater than zero then this quadratic equation has 2 different real solutions.
Answer:
1.) 192 ounces
2.) 1 3/4 tons
3.) 105 feet
4.) 10 gallons and 3 quarts
Step-by-step explanation:
Hope this helps :)
