Answer:
Step-by-step explanation:
here you go mate
step 1
-2s < 6 equation
step 2
-2s < 6 divide the sides by 2
-2s/-2<6/-2
answer
s>-3
It would require 5.25 cups.
Since the amount of chlorine mixture necessary is proportional to the volume of water in the pool, we will use the scale factor of the volume of the two pools, 4/7, to set up a proportion.
4/7 = 3/x
Cross multiply:
4*x = 3*7
4x = 21
Divide both sides by 4:
4x/4 = 21/4
x = 5.25
If Neptune has 8 and is 2 more than 1/3 the number of Saturn's moons, you would subtract 2 from 8 to get 6, then multiply that by 3 to get 18.
Because the surface area is of a 2-D SHAPE to find a area of a 2-D shape is l x w
Answer:
10 minutes
Step-by-step explanation:
Let's use the variable x for the amount of coins.
The first machine can sort x coins in 15 minutes, so its speed is x/15 coins/minute.
The second machine can sort x coins in 30 minutes, so its speed is x/30 coins/minute.
If we sum the speeds, we have that the speed will be:
speed = (x/15) + (x/30) = (2x + x)/30 = 3x/30 = x/10
The total speed can sort x/10 coins per minute, that is x coins in 10 minutes.
