Answer:
The root is x = -2
Step-by-step explanation:
1. Add 4 on both sides.
x^2 + 4r + 4 = 0
2. What two numbers, if added together and multiplied together, give 4?
2 and 2.
3. Factor
(x+2)(x+2)=0
4. Solve
x = -2 (There is only one root for this quadratic equation.)
Please give me brainliest is this is right. Than you!
P
=
12
5 this is what I got for that
<h2>37.5% I believe</h2><h3 /><h3>12 ÷ 32 = 0.375</h3><h3>0.375 = 37.5%</h3><h3 /><h3><em>Please let me know if I am wrong.</em></h3>
Answer:
x+y=603
y=x+53
Step-by-step explanation:
Substitute what y equals in the second equation for y in the first equation:
x+(x+53)=603
2x+53=603
-53 -53
2x=550
2 2
x=275 hamburgers
To solve for the number of cheeseburgers, substitute 275 for x in either equation.
y=x+53
y=275+53
y=328 cheeseburgers
To double check your work, make sure that 275+328=603 and that 328=275+53. Since both are true, you have solved for the number of hamburgers (275) and cheeseburgers (328).