Take out out the decimal place and times 368 by 1000 because you already have 3 numbers just add a zero on and your answer is 3680 inches of ribbon
Taking the 3 solutions as 3 different terms, we can create an equation as follows:
Solution 1 : 10mL with 20% acid
Solution 2 : 30mL with x% acid
Solution 3 : 40mL with 32% acid
Since solution 1 + solution 2 = solution 3, let us substitute the given values we have:
10(0.2) + 30(x) = 40(0.32)
2 + 30x = 12.8
To solve for the unknown concentration x, we subtract 2 from both sides:
2 + 30x - 2 = 12.8 - 2
30x = 10.8
Dividing both sides by 30:
30x/30 = 10.8/30
x = 0.36
Therefore the unknown solution is 36% acid.
Answer:
3/10
6/20
Step-by-step explanation:
We need to find the number of bucks
4 does + 3 fawns + x bucks = 10
4 + 3 +x = 10
7+ x = 10
Subtract 7 from each side
x = 3
There are 3 bucks
3/10 is the fraction of bucks
Multiply the top and bottom by 2
3/10 * 2/2 = 6/20 is an equivalent fraction
Answer:
» substitute y in eqn(a) with y in eqn(b)
» Find y in eqn(b)
Answer:
The answer is 3.643•10^-1.
Step-by-step explanation:
Move the decimal until it is between the first and second number
You move it one time and this is a decimal so the exponent will be -1.
