Answer:
B. 12/13
Step-by-step explanation:
The answer choices suggest that you intend the problem to be interpreted as ...
(8/13)/(2/3) . . . . . parentheses are required
= (8/13) × (3/2) = (8·3)/(13·2) = (8·3)/(2·13)
= (8/2) × (3/13) . . . . making use of the associative property
= 4 × 3/13 = 12/13
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Your calculator can help with these. You do need to get the parentheses right.
Exactly the same way you find any missing item in any other subject:
You take the information you're given, and you collect everything you know about
relationships between the information you have and the item you have to find.
Finally, you use the relationships and the given information to find the value of the
missing item.
The process you'll use to find the circumference of a circle will depend on what
information you DO have about the circle.
Find the sum of the first 4 terms
2, -8, 32, -128 are the first 4 terms
<em>2 + (-8) + 32 + ( - 128)</em>
2 + ( - 8) = -6
-6 + 32 = 26
-128 + 26 = -102
-102 is the sum of the first four terms
hope this helps
Answer: there are eight bicycles and 7 tricycles.
Step-by-step explanation:
Let x represent the number of bicycles that are there.
Let y represent the number of tricycles that are there.
There are a total of 15 bicycles and tricycles. This means that
x + y = 15
A bicycle has 2 wheels and a tricycle has 3 wheels. There are 37 wheels all together if we count them up. This means that
2x + 3y = 37- - - - - - - - - - - - - 1
Substituting x = 15 - y into equation 1, it becomes
2(15 - y) + 3y = 37
30 - 2y + 3y = 37
- 2y + 3y = 37 - 30
y = 7
x = 15 - y = 15 - 7
x = 8