Answer:
k = 0.167
Step-by-step explanation:
This is a direct proportion. That is as the number of chairs increases, so does the number of minutes needed.
y=number of chairs
x = time in minutes.
y = k x
4 = k * 24 Divide by 24
4/24 = k
You could leave it that way.
or you could do the division
k = 1/6 = 0.167
y = 0.167 x
0.191= 19.1%
338mL × 0.191= 64.558mL acid
We round to the nearest tenth, getting a total of 64.6mL acid.
Answer:
x = -7
Step-by-step explanation:
Recall this rule of exponents:
a^b*a^c = a^(b+c)
We have:
6^9*6^x = 6^2
Then 9 + x = 2. Subtracting 9 from both sides, we get: x = -7