Answer:
x = -2 or x=-5
Step-by-step explanation:
sqrt(x+6)-4 = x
sqrt(x+6) = x+4
square both sides
x+6 = x²+8x+16
x²+7x+10 = 0
(x+2)(x+5) = 0
x = -2 or x=-5
Substitute in original equation
x=-2 +/- sqrt(-2+6)-4 = 2-4 = -2 checks
x=-5 +/- sqrt(-5+6)-4 = -1-4 = -5 checks
There are 518052 pens
If you multiply the number of boxes by the number of pens in each box you can work it out!
Okay well the easiest way to do this is convert the 3lbs to ounces. There are 16 ounces in 1 pound, so 16×3= 48. So 48-6=42 ounces. So that would be 2lbs and 10oz.
Answer:
<h2>600 km</h2><h2 />
Step-by-step explanation:
<u>400 km</u> = <u> x </u>
6 min 9 min
cross multiply:
6x = 400 ( 9)
x = 3600 / 6
x = 600 km
5+10/5
first you have to do the division
10/5=2
then you do the addtion
5+2=7
the answer is 7 <span />