Set up a proportion
3 coins:8 notes and then the other one 24 coins : x (unknown notes)
they have a relationship so we can set them equal to each other.
3/8=24/x cross multiply: 8 * 24 = 192
Now divide that by 3: 192/3 = 64
So there are 64 notes in the bag
Answer: length = 75 cm
Step-by-step explanation:
61 x 2 = 122
272-122= 150
150 divided by 2 = 75
check: 75+61= 136
136 x 2 = 272
hope this helps!
Answer:
Tree diagrams are most effective for complex probability calculations with multiple AND statements
Step-by-step explanation:
The given statements truths are;
A probability calculation can be calculated by using more than one model, which are dependent on the given parameters which can be either a graphical model such as a tree diagram, or an analytical model such as the systematic list model
A systematic list model is one that lists the possible outcomes of simple events
Area models are used for the representation of simple probabilities
Tree diagram models are helpful in graphically displaying complex probabilities, to aid visualization of the solution.
Answer:
Step-by-step explanation:
Given
See attachment
Required
The perimeter of ABC
First, calculate the lengths of AC and BC.
From the attachment.
So, we have:
Also:
Recall that:
So:
So, we have:
To calculate BC, we have:
The perimeter is then calculated as:
Answer:
B) The triangles are similar and have the same ratios for the height to the base . The slope of the line is .
Step-by-step explanation:
The triangles share the ratio , and the slope of . This narrows down the options to either A or B. But, the difference between the options are the words "similar and congruent." Congruent means that the triangles are exactly the same shape and size. Similar means that they share a shape but are different sizes. The triangles are similar.
Hope it helps!