Answer:
Step-by-step explanation:
Solution is attached below
Answer:
9x-4
Step-by-step explanation:
add 5x and 4x
9x-3-1
subtract 1 from -3
9x-4
First I would turn the mixed fractions into improper fractions so it will be easier division. That would make 4 3/4 become 19/4 and 11 7/8 become 95/8. Next, the formula for area is length x width= area. If you plug in the numbers, it will become 19/4x=95/8, x being the width. You would divide 95/8 by 19/4 and end up with 5/2 or 2 1/2.
because you make them all improper fractions
x + (4 + x) = 20
2x + 4 = 20
2x = 16
x = 8
Proof
x + (4 + x) = 20
8 + 4 + 8 = 20
12 + 8 = 20
20 = 20
The numbers are 8 and 12.
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