Answer:
Let s = students
Let a = adults
2s + 4a = 2800
Step-by-step explanation:
Answer:
y=4(3)^x
Step-by-step explanation:
2(1)+3(3)+4=15
2+9+4=15
Or
2(4)+3(1)+4=15
8+3+4=15
So either one would work
Answer:
9
Step-by-step explanation:
7r+18=r²
r²-7r-18=0
factorizing
r²+2r-9r-18=0
r(r+2)-9(r+2=0
(r-9)(r+2)=0
r-9=0
r=9
check
(r²)=(9*9)=81
7r+18=7(9) + 8=81
Answer:
88m of fencing
Step-by-step explanation:
the cicumference of the garden is what we are looking out for,
and with the raduis .ie.14m
C=2πr
C=2•22/7•14
C=88m