Answer:
We have 16 ounces of 3% H2O2
How many ounces of 30% H2O2 do we add to make a 10% H2O2 solution?
let x = amount of ounces of 30% H2O2 to add
.03 * 16 + .30x = .10 * (16 + x)
.48 + .30x = 1.6 + .1x
.2x = 1.12
x = 5.6 ounces
Source:
https://www.1728.org/mixture.htm
Step-by-step explanation:
If y = 9x - 7, which of the following sets represents possible inputs and outputs of the
function, represented as ordered pairs?
{(7,9), (8, 10), (9, 11)}
{(0, -7), (1, 2), (-1, -16)}
{(1,9), (2,7), (3, 16)}
{(-7,0), (2, 1), (-16, -1)}
The answer is b {(0,-7), (1,2), (-1,-16)}
Answer:
x<-5 . All you have to do is pemdas which is parentheses,exponents, multiplication, division, addition and subtraction
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I believe your answer is:
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Here’s why:
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Hope this helps you. I apologize if it’s incorrect.
Round 693,856,639 to the nearest thousand.How do you that than? Thats a long NUMBER?
Well, I'm going to tell you that if the number is higher than 5 than you round up but if the number is lower 5 you round down. So, how would you do that to find the nearest thousand? 693,856,639 so, you would know where the thousand is right? it's 6,639 lets just cancel the part 693,85 and think about 6,639. As I told you if the number is higher than 5 than you round up but if the number is lower 5 you round down.
6,639 so now if you look at the right side it's higher than 5 it's a 6 so, if you round up to the nearest thousand it's 7,000
so 6,639=7,000
