Answer:
multiply them like you normally would and add up the decimal places, then place ur decimal.
Step-by-step explanation:
Yeah its gonna be 18 square feet in wide and length and the area is gonna be 36 square feet
Hello!
If there are 32 people in total in the class, and 20 of them are girls, that means there are 12 boys in the class
so the ratio of boys to girls is 12:20
to get simplest form, divide by the greatest common factor. which in this case, is 4.
12 / 4 = 3
20 / 4 = 5
your final answer is: boys:girls, 3:5
I hope this helps, and have a nice day!
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.
Answer:
536 posters
Step-by-step explanation:
So the club only has $1500 to spend, you can write this down as the beginning of your equation (1500=)
Now we know that the printer charges 160 as a BASE so you should now have (1500=160)
We also know that it costs an extra $2.50 per poster. You can rewrite this as:
1500=160+2.5(x)
Now subtract 160 from both sides to get:
1340=2.5(x)
Now divide 2.5 from both sides to get x by itself:
536=x
Therefore they are able to afford 536 posters
