Answer:
B
Step-by-step explanation:
A is not correct because 1 does not equal 1/4 +1/4.
B is correct because 1/4*1 does equal 1/5. (and all the other ones)
C is not correct because 1 does not equal 1/4*1/4
D is not correct because 1/4 does not equal 1-1/4
Answer:
The color spectrum is what the human sees, as a wavelength of light. Furthermore, the color spectrum includes different colors that we are able to see, for instance red, yellow and orange.
Answer:
x = 44°
Step-by-step explanation:
Since this is an isosceles triangle, the other angle that isn't defined is also 68°. So, since all the angles add up to 180°,
x + 68(2) = 180
x + 136 = 180
x = 44°
6 * 4x = 24x
6 * 5 = 30
3 * x = 3x
3 * 8 = 24
24x + 30 = 3x + 24 + 3
24x + 30 = 3x + 27
subtract 3x from both sides
21x + 30 = 27
subtract 30 from both sides
21x = -3
divide both sides by 21
x = -1/7
Answer: fluffy is 11 years old
Scuffy is 8 years old
Step-by-step explanation:
Let x represent the present age of Fluffy the cat.
Let y represent the present age of Scuffy the dog.
Fluffy the cat is 3 years older than Scuffy the dog. This means that
x = y + 3 - - - - - -- - - - - 1
Six less than five times Scruffy's age is one more than three times Fluffy's age. This means that
5y - 6 = 3x + 1
5y - 3x = 1 + 6
5y - 3x = 7 - - - - - - - - - -2
Substituting equation 1 into equation 2, it becomes
5y - 3(y + 3) = 7
5y - 3y - 9 = 7
5y - 3y = 7 + 9
2y = 16
y = 16/2 = 8
x = y + 3
x = 8 + 3 = 11
