Answer:
Divide the 1st equation by 2
a + 2c = 19
Divide the 2nd equation by 3
a + c = 13.5
Subtract the 1st equation and the 2nd equation
c = 5.5
Substituting back into the 2nd equation will give:
a + 5.5 = 13.5
a = 8
Step-by-step explanation:
243 because if you divide and subtract it would culminate to the amount of people
Answer: 76
Step-by-step explanation:
well, we know that 15% of the X is 12, so we first use 6 15%, which is 90% 6X12=72. next, we would use 12/3, which is 4. 72+4=76.
Answer:
-35/9
Step-by-step explanation:
(3^-2)-4
1/9-4
-35/9
Take the y and x and 4 as a common factor and you will get 4xy(2yz+3x) the second one is the answer
