Answer:
50% are boys
Step-by-step explanation:
Total number of kids: 18+15=33
Percent of boys: 15/33=0.4545 repeating
0.4545 rounded to tenth: 0.5
0.5 to percent: 50%
Answer:
(1) x = (1/3)a
Step-by-step explanation:
Note that 8 = 2^3 and 1/2 = 2^(-1). So, 8^(x-2a) = 2^(3(x-2a)) = 2^(3x-6a) and (1/2)^5a = 2^((-1)(5a)) = 2^(-5a). Setting these equal we get: 2^(3x-6a)=2^(-5a). We can notice that the exponents must be equal, so 3x-6a = -5a. Adding 6a on both sides, we get: 3x = a. Then, we divide by 3 on both sides and get: x = (1/3)a
i hope this helps!!! :)
4 plates
2/3*4=8/3 or 2 2/3
Brainliest plz? :)