Hi! Here are notes on unit rates!
•A rate is a ratio that compares two quantities with different measures.
•A unit rate is when the ratio has a second term (a denominator) of one.
Calculating:
To calculate a unit rate, divide the numerator (1st number of a fraction) of the ratio by the denominator(2nd number)
•Hint : when dealing with costs, the money will be a numerator.
Some practice:
Ratio: $6 for 8 erasers:
6/8 divided by 2 equals 3/4
Then when you divide the fractions divide it by doing: 3 divided by 4 (4 outside 3 inside) which equals.... 0.75! So then your final answer will be $0.75 per eraser
•don’t forget the unit!
You can ask me for more examples :)
Answer:
Step-by-step explanation:
For the following expression
(
)}
First, write the multiplication factors:
Then multiply by the first term 0.1x, and later by the second term 0.4y.
You can rewrite the multiplication like this:
=
<u />
<u> 
</u>
<u />
-----> Now add similar terms and you will get:
<u />
Say 36% of 100 is 36. so knowing half of 36 is 18, take half of 100, 50.
so 18/50 = 36
The answer is 50.
The correct answer for the question that is being presented above is this one: "D.The distributions are somewhat similar; C.The distributions are similar." Data Set 1 has a mean of 84 and a MAD of 6. Data Set 2 has a mean of 78 and a MAD of 8. You conclude about the two distributions: .The distributions are somewhat similar; <span>The distributions are similar.</span>
Answer:
11.3 Km
Step-by-step explanation:
Consider the right triangle formed by AB and West.
The acute angle WAB = 270° - 250° = 20°
and West is the adjacent side of the right triangle with AB the hypotenuse
Using the cosine ratio in the right triangle, then
cos20° = 
= 
Multiply both sides by 12
12 × cos20° = adjacent
11.2763.. = adjacent, that is
B is 11.3 Km west of A
