What i did is that i did $1.50 time 8 = $12.00 and then do $30.00-12.00=$18.00
Answer:
C
Step-by-step explanation:
Answer:
what are the color of the marbles that are not red?
Step-by-step explanation:
Answer:
Depending on the equation it will change
n=1 (not in an equation)
Step-by-step explanation:
Pls mark BRAINLIEST
Answer:
System of equations:
20x + 30y = 650
x + y = 25
Time underwater = 10 hours
Time at the surface = 15 hours
Step-by-step explanation:
Let x = time underwater at 20 km/h.
Let y = time on the surface at 30 km/h.
speed = distance/time
distance = speed * time
distance underwater: 20x
distance on the surface: 30y
total distance: 650
20x + 30y = 650
total time: x + y
total time: 25
x + y = 25
20x + 30y = 650
x + y = 25
20x + 30y = 650
-20x - 20y = -500
--------------------------------
10y = 150
y = 15
x + y = 25
x + 15 = 25
x = 10
