Answer: I believe it should be 16 but rounding to the nearest tenth would make it 20.
Step-by-step explanation:
i'm sorry if i'm incorrect
Answer:
252 children and 395 adults
Step-by-step explanation:
Make a linear system of equations, where x represents the number of children and y represents the number of adults
x+y=648
1.50x+2.25y=1269
solve using substitution, so y=648-x,
then substitute this into the second equation, so you get 1.50x+2.25(648-x)=1269,
solve for x and you will get x equals the 252
then substitute this into the first equation, so you get 252+y=648
solve and you will get y=395
This you answer x=-1/5y+-4/5
http://www.mathpapa.com/algebra-calculator.html
Answer:
30
Step-by-step explanation:
10×7/10=21×10
7÷7=210÷7
answer=30
