Answer:
Achmed has 7 pencils.
Step-by-step explanation:
Let Achmed have x pencils, then:
Gloria has 2x pencils and Peng has 3x pencils so we have the equation:
x + 2x + 3x = 42
6x = 42
x = 7.
Achmed has 7 pencils.
X + x + 1 + x + 2 = 12
x + x + x + 3 = 12
subtract 3 for each side
x + x + x = 9
3x = 9
divide 3 from each side
x = 3
Small side 3 feet
Middle side 4 feet
Long side 5 feet
Hello,
If you don't know how to calculate the sum of a geometric progression,
the solution is the file joined.
else
The answer is d.
The easiest way is to find a point within the shaded region and test out the equation.