let x be the number of adults
let y be the number of child
3.5 x + 2.25 y = 50
x+ y =20 y = 20 - x
3.5 (20-y ) + 2.25 y = 50
70 - 3.5 y +2.25y =50
70 -1.25 y = 50
y = 16
and x = 4
Answer:
0.6 km
Step-by-step explanation:
(3 km)/(5 friends) = 0.6 km/friend
Each person should lead for 0.6 km.
Answer:
9√3
Step-by-step explanation:
simpilify the expression by multiplying exponents
= 3 1/9
using a m/n = n√a^m, transform to 9√3
Two lines are perpendicular to the same line so they are parallel .
IM NOT POSITIVE BUT I THINK the Answer IS OPTION A
sorry caps lock.
