4/7 = 12/21
12/21 = x + 3/21
9/21 = x
Hope this helped!!
Answer:
(-5,2)
Step-by-step explanation:
Answer:
250
Step-by-step explanation:
copper: zinc : total
2 1 2+1 =3
We have 750 brass
750/3 = 250
Multiply each by 250
copper: zinc : total
2*250 250 3*250
500 250 750
Answer:
Step-by-step explanation:
- MAD is simply the average distance that all of the numbers in your data set are from the mean.
- Your first step is to put your data in order, then determine the mean.
- Let’s look at this data set:
0.3, 0.5, 0.9, 1.1
- The mean of this data set is 0.7
- Starting with the lower extreme, and checking every number in your data set, determine how far each number is from the mean.
- First, put the numbers in numerical order, from least to greatest.
- Determine the distance each number is from 0.7.
- 0.3=0.4
- 0.5=0.2
- 0.9=0.2
- 1.1=0.4
- Add up all of the distances.
- Total distance from the mean (12) ÷ 4 numbers in our data set = a mean absolute deviation of 3.
I added a PowerPoint that I made so that if you didn't understand it you could read off of it.
Answer:
gradient = 2
Step-by-step explanation:
Calculate the gradient (slope) m using the slope formula
m = 
with (x₁, y₁ ) = (1, 0) and (x₂, y₂ ) = (6, 10) ← 2 points on the line
m = 
= 
= 2
