Answer:
B
Step-by-step explanation:
2x + 4y = 6x - y
4y + y = 6x - 2x
5y = 4x
(4,5) when x=4, y=5
5(5) = 4(4)
25 = 16
is a false statement, so not (4,5)
(5,4) when x=5, y=4
5(4) = 4(5)
20 = 20
is a true statement, so yes
Let Lin be x years old.
Lin = x
Frank = 4x
<span>The difference in their ages is equal to Lin’s age plus 8
</span>⇒4x - x= x + 8
Solve x:
4x - x= x + 8
Combine like terms:
3x = x + 8
Take away x from both sides:
2x = 8
Divide by 2 on both sides:
x = 4
Lin is 4 years old.
Frank is 4 x 4 = 16 years old.
Answer: Lin is 4 years old and Frank is 16 years old.
Answer:
10
Step-by-step explanation:
523=4/3 pi r^3
124.86=r^3
5=r
d=2r
d=10
Answer:
See below
Step-by-step explanation:
(4,7) is just 4 and 7 but [4,7] is all the points between 4 and 7. I am pretty sure this is correct, but i could be wrong. Hope this helped!
Answer:
Step-by-step explanation:
Score on SAT Verbal Test
