Answer:
x² + x - 12 = 0
Step-by-step explanation:
Given the solutions are x = - 4 and x = 3, then the factors are
(x + 4) and (x - 3) and the equation is the product of the factors, that is
(x + 4)(x - 3) = 0 ← expand factors using FOIL
x² + x - 12 = 0 ← in standard form
Answer: d and C i'm pretty sure
Step-by-step explanation:
A=s+30
8a+4s=840
8(s+30)+4s=840
12s+240=840
12s=600
s=50
a=50+30=80
Check:
80(8)+50(4)=640+200=840 CHECKS.
80 Adults and 50 Students.
<span>that would be my dear 2/8, 3/12,</span>
Your answer is B. 17/28
To subtract fractions, it is the same as adding fractions in the way that you need a common denominator. The lowest common multiple of 4 and 7 is 28, so, after cross-multiplying we get 21/28 - 4/28, and 21 - 4 = 17, so your final answer is 17/28.
I hope this helps!
