21 picks
altogether (2x+5x)=21
7x=21
x=3
2*3=6 orange picks
or
x=orange, y = greens
x+y=21
x/y=2/5,----> y=5x/2
x+5x/2=21
2x/2+5x/2=21
7x/2=21
7x=42,
x=6 orange picks
Answer:
42km/h
Step-by-step explanation:
70km=100 minutes
7km= 10min
42km=60min
42km/h
Answer:
solution is x=3
Step-by-step explanation:

apply log property
log a- log b= log a/b

we have log on both sides
so we remove the log and make the arguments equal

solve for x, multiply whole equation by 3

now plug in 3 for x and check

solution is x=3
Answer:
You have 12.25 minutes left to workout.
Step-by-step explanation:
I got D for the answer ...