Answer:
- 40 ml of water must be added.
Step-by-step explanation:
Initial volume of mixture is 100 ml with oil to water ratio of 1 : 4.
First, let's find the volume of each component.
If the oil is x then water is 4x according to ratio and their sum is 100 ml:
- x + 4x = 100
- 5x = 100
- x = 20
So, we have 20 ml of oil and 80 ml of water.
Now, let's added volume of oil be y. Then we have the ratio:
- (20 + y)/80 = 1/2
- 20 + y = 40
- y = 20
So, we have 40 ml of oil and 80 ml of water.
Lastly, let's added water be z. Then we have the ratio:
- 40/(80 + z) = 1/3
- 80 + z = 120
- z = 40
We must add 40 ml of water.
Find out how many hours you worked first.
2:30 pm-8:45 => 6:15 hours
But they say that you take a break of 1/2 hour
6:15- 0:30= 5:45 hours
Convert all the data into hours. 5 hours + 45/60 hours
Multiply data with given hourly wage.
5x$7.50=$37.5
(45/60)x7.50=$5.625
In total, you earn (37.5+5.625)=> $43.125
Hope I helped :)
14) 6.20
16) 9.1
I hope that helps cuz
2x + 4(3-2x) =
2x + 12-8x =
2x-8x= -12
-6x= -12
x=2
Answer:
x=4
Step-by-step explanation:
vertical angles are congruent so the equation would be
6x=4x+8
then you subtract 4 on both sides
2x=8
then you divide 2 on both sides then the answer would be
x=4
