Answer:
38.4
Step-by-step explanation:
it took 48 minutes and the app miss estimated by 9.6, which is 20% of 48. So subtract 9.6 from 48 and you will get 38.4
12,600 is 18 tones which is 18,000 kg - 30%
Answer:
she gave away 4
Step-by-step explanation:
p = 16-12 = 4
Answer:
The standard deviation of the sampling distribution σₓ = 0.013
Step-by-step explanation:
<u><em>Explanation</em></u>:-
Mean of the Population μ = 9.70 ounces
Standard deviation of the Population σ = 0.03 ounces
Given size of random sample 'n' =5
The standard deviation of the sampling distribution
σₓ = σ/√n
First, we should manipulate the equations so that they equal the same things, so that we can set them equal to each other. We have problem, since they both have multiple variables, so if we set the equations equal to a variable, we can cancel it out and solve for the one remaining.
Let's first start by solving for x. We need to set the equations equal to y.
4x+3y=1
3y=1-4x
y=(1-4x)/3
3x+2y=2
2y=2-3x
y=(2-3x)/2
Now we can set them equal to each other.
(1-4x)/3=(2-3x)/2
2(1-4x)=3(2-3x)
2-8x=6-9x
x=4
We can do the opposite to find y.
4x+3y=1
4x=1-3y
x=(1-3y)/4
3x+2y=2
3x=2-2y
x=(2-2y)/3
Now set them equal to each other and solve for y.
(1-3y)/4=(2-2y)/3
3(1-3y)=4(2-2y)
3-9y=8-8y
3-8=9y-8y
y= -5