Answer:
31200 m
Step-by-step explanation:
120 times 60 equals 7200 and 200 times 120 equals 24000 and add the two up you get 31200
well that all depends on luck because you'll never land the exact same numbers again unless you get extremely lucky
Answer:
80 questions
Step-by-step explanation:
100%/20%=5%
5×16=80
1.Solve for x: 4 over x plus 4 over quantity x squared minus 9 equals 3 over quantity x minus 3.
<span>(4/x) + [4/(x^2 - 9)] = 3/(x - 3) </span>
<span>LCD: x(x + 3)(x - 3) </span>
<span>4(x + 3)(x - 3) + 4x = 3(x)(x + 3) </span>
<span>4(x^2 - 9) + 4x = 3x^2 + 9x </span>
<span>4x^2 - 36 + 4x = 3x^2 + 9x </span>
<span>x^2 - 5x - 36 = 0 </span>
<span>(x - 9)(x + 4) = 0 </span>
<span>x = 9 or x = - 4 </span>