Answer:
21, 6, 12
Step-by-step explanation:
your welcome:)
You can solve this 2 ways: plug in all of the options or solve for x.
i going to solve for x.
given: x^2+2x=24 (subtract 24 on both sides to get make it look like x^2+x+1)
x^2+2x-24=0 (now factor x^2+2x-24 out)
<span>x^2+2x-24 --> (x-4)(x+6)
</span>
new equation: <span>(x-4)(x+6)=0 (now make them both equl zero)
new equaions: </span>x-4=0 x+6=0 <span> (now solve for x for both)
x-4=0 x+6=0
x=4 x=-6
your <span>answer is 4 and -6.
if you were not taught how to do what i just did then i can message you how to plug those numbers into </span></span><span> x^2+2x=24 to find the answer.</span>
I believe the answer would be your first choice!
I hope I am correct and that this helps
Answer:
400mph and 465 mph
Step-by-step explanation:
let the speed of first plane be x
speed of 2nd plane = x+65
dist travelled by first plane in 2 hrs = 2x
dist travelled by 2nd plane = 2(x+65)= 2x+130
when they meet, the sum of dist travelled by them is 1730
4x + 130 = 1730
4x = 1600
x = 400moh
x+65 = 465 mph
You need to find 7 1/2% of $29.95.
To do that, just multiply the percent by the number.
7 1/2% * $29.95 =
= 7.5% * $29.95
= 0.075 * $29.95
= $2.24625
The answer is $2.25
