If x is the first number, x+2 is the next consecutive even integer. The difference (subtraction) of their squares equals 20. Therefore:
(x+2)²-x²=20...expand this:
x²+4x+4-x²=20
x²+4x+4-x²=20
4x+4=20
4x=16
x=4. Therefore the next consecutive even integer is x+2=6.
To check: 6²-4² must equal 20
36-16=20 check!
Y=8x
Ask for a step by step explanation. :)
Hope this helps.
Answer:
0.9
90%
Step-by-step explanation:
Dividing 10 into 9.0 we get the decimal 0.900.
As a percentage this is 0.900 * 100 = 90%
Hey there!
ORIGINAL EQUATION:
1/2y + 1 = 2
SUBTRACT 1 to BOTH SIDES:
1/2y + 1 - 1 = 2 - 1
CANCEL OUT: 1 - 1 because it give you 0
KEEP: 2 - 1 because it help solve for the y-value
NEW EQUATION: 1/2y = 2 - 1
SIMPLIFY IT!
1/2y = 1
MULTIPLY 2 to BOTH SIDES
1/2y * 2 = 1 * 2
CANCEL out: 1/2 * 2 because it give you 1
KEEP: 1 * 2 because it give you the y-value
NEW EQUATION: y = 2 * 1
SIMPLIFY IT!
y = 2
Therefore, your answer is: y = 2
Good luck on your assignment & enjoy your day!
~Amphitrite1040:)
