Answer: 3 shelves
Step-by-step explanation:
12 ÷ 3.1 = 3.87…
Since this is more than 3 but less than 4, we can build 3 full shelves with a leftover.
Answer:
triangle BDE to triangle BKF rule angle angle
The value of b in the expression is -2.
<h3>How to find the variable in an expression?</h3>
a + a + b = 14
b + b + c = 8
a + b + c = 18
Therefore,
2a + b = 14
2b + c = 8
c = 8 - 2b
Hence,
a + b + 8 - 2b = 18
a - b = 18 - 8
a - b = 10
2a + b = 14
a - b = 10
3a = 24
a = 8
8 - b = 10
b = 8 - 10
b = -2
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Answer:it is just 10
Step-by-step explanation:nope
Answer:
Step-by-step explanation:
Assuming Roberto wants to completely fill each page that he puts cards in, this function describes the number of 2-card pages, a, and 3-card pages, b.
2a + 3b =18
Ricardo can fill up 9 2-card pages, and 6 3-card pages.
a=9, b=0
We must add 2 3-card pages at a time,so that we have an even number for the 2-card pages:
a=6, b=2
Add 2 to b once more:
a=3, b=4
One more time:
a=0, b=6:
Thus, Ricardo can display his figures in the following page combinations:
a=9, b=0
a=6, b=2
a=3, b=4
a=0, b=6
Remember that a= number of 2-card pages and b=number of 3-card pages
There are 4 different ways that Ricardo can arrange his figures in terms of what kind of pages he uses.