book
Maths Puzzle
Numerical Ability
Is this the correct way to solve this type of expression:
11x-8x-8=10
(11x-8x)-8=10
3x-8=10
10+8=3x
18=3x
x=6
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book Other Question
Find the area of each circle with the given dimensions.
1. d = 5 ft
2. r = 26 cm
3. d = 4.2 m
4. r = 0.3 mm
5. d = 5 ft 1 in.
6. r = 1/5 mi
7. A dog is running
Solve the system of equations. Describe what you are doing at each step in your solution process.
w+x+y+z=6
3w-x+y-z=3
2w+2x-2y+z+4
2W-x-y+z=-4