Answer:
6 feet
Step-by-step explanation:
Perimeter = 2L + 2W
Since you know the perimeter is 64 feet, you would plug that into the perimeter side.
64 = 2L + 2W
You also know the width is 2 feet longer than 4 times the length.
64 = 2L + 2(2 + 4L) ----> Multiply 2 * 2 and 2 * 4l
64 = 2L + 4 + 8L ----> Subtract 4 from each side
-4 -4
60 = 2L + 8l ----> add these two
60 = 10L
/10 /10 -----> divide by 10 on each side
6 = L
Now that we know the length, find the width.
64 = 2(6) + 2(2 + 4(6)) -----> multiply 2 * 6 and 4 * 6
64 = 12 + 2(2 + 24) -------> add 24 and 2
64 = 12 + 2(26) -------> multiply 2 and 26
Before you go any further, you now know that the width is 26 feet. Continue solving.
64 = 12 + 52
64 = 64
Everything checks out.
The length is 6 feet and the width is 26 feet.
Answer:
A. It will be multiplied by 4.
Step-by-step explanation:
When all the dimensions of a 2-dimensional figure are multiplied by a number x then the area is multiplied by x^2. Since all numbers are multiplied by 2 then the area will be multiplied by 2^2 or 4.
To prove this:
12*14=168
Now double the dimensions
24*28=672
Notice that 168*4=672
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Answer:
The expression is;
Number of books = length of box/thickness of book
= 81/2/9 = 81 books
Step-by-step explanation:
Here, we want to determine the number of books that will fit into a box given the length of the book and the box.
The expression that can be used to get the number of books will be;
Number of books = length of box/thickness of book
= 18 divided by 2/9
= 18 * 9/2 = 81 books
Answer:
6 units
Step-by-step explanation:
Distance between two points on the number lines, the difference between the absolute values.
I-8 I - I - 2I = 8 - 2 = 6
Answer:
5 x + 3 = 23
Step-by-step explanation:
