Answer:
61.25%
Step-by-step explanation:
How many ml of 20 percent acid should be added to pure acid
to make 70 ml of 30 percent acid?
:
let x = amt of 20% mixture
then
(70-x) = amt of pure acid
:
0.20x + (70-x) =0 .30(70)
0.20x + 70 - x = 21
= 21 - 70
-0.8x =-49
x = 61.25%
x = +61.25 ml of 20% stuff
Answer:
kayla and 9968
Step-by-step explanation:
Answer:
2,225
Step-by-step explanation:
You have to imagine it as a number line, with Christs death for 0. 582 years in the other direction, towards the positives, gives you 582. Plus the 1,643 years, and you have to solve 582 + 1,643
Answer:
The mode is twelve.
Step-by-step explanation:
The mode of a data set is the number that appears the most often. I've added an attachment so that you might be able to see some examples.