Step-by-step explanation:
y = 7x - 3
To make x the subject, you need to isolate it. (Get x by itself)
y = 7x - 3
Add 3 on both sides...
y + 3 = 7x
Divide by 7 (Maybe your teacher wants 7x = y = 3 but if she doesn't and wants x completely by itself here's the answer)
x = y/7 + 3/6
The mean absolute deviation is a measure of variability in statistics. This number tells us how close the rest of the numbers are to the mean. The closer they are to the mean, the more reliable the data is.
The attached work shows how to find the MAD (mean absolute deviation).
Here are the steps:
1. Find the mean of the data. 2. Find the difference between the mean and the data values. 3. Find the average of these differences.
If the ratio is 5/8, or 8/5
Tobias picked five daisies and eight roses.
For every eight shots, Micah made five baskets.
If the ratio is 5/13, or 13/5
Sally found five green fruit loops in her cereal bowl, out of every thirteen pieces.
If the ratio is 8/3, or 3/8
Aly painted eight trees for every three birds.
You can consider the tree perpendicular to its shadow, therefore you get a triangle rectangle of which you know the two legs and you need to find the angle between the shadow and the hypothenuse, opposite to the tree.
In this case, the angle α can be easily found with trigonometry:
tan α = (opposite side / adjacent side)
Therefore:
α = tan⁻¹ (tree / shadow) = tan⁻¹ (10 / 14) = 35°
NOTE:
tan⁻¹ is sometimes found written as arctan.
Answer:
9 at minimum
Step-by-step explanation:
a minimum of 9 because it takes a total of 8 rides to take back a full 18 cars back and the 9th ride takes back the remainder which is 0.27777777778 times 18 cars