Answer:
3x - y = 0; 2x - y = -5
Step-by-step explanation:
Let x be the present age of Hans and y be the present age of Grace,
Since, in present Grace is three times as old as Hans,
⇒ y = 3x
⇒ 3x - y = 0
Now, after 5 years,
The age of Hans = x + 5,
And, the age of Grace = y + 5
Also, in 5 years Grace will be twice as old as Hans is then,
⇒ y + 5 = 2 ( x + 5 )
⇒ y + 5 = 2x + 10
⇒ 2x - y = -5
Hence, the required system of linear equations is,
3x - y = 0; 2x - y = -5
Answer:
A) r x 2 = g
B) b - 5 = g
C) b x 4 = g
Step-by-step explanation:
Answer:
117/78
Step-by-step explanation:
(-50-67)/(-12-56)=-117/-78=117/78
To subtract fractions, we need a common denominator.
-
the common denominator will be (y-2)(y+3)
The answer above will be the simplified form.
4/13 chance to get green and 6/13 to get red
