Answer:
24 and 21
Step-by-step explanation:
the ratio of their ages is 8 : 7 = 8x : 7x ( x is a multiplier )
In 6 years
8x + 6 : 7x + 6 = 10 : 9
Express the ratio in fractional form
=
( cross- multiply )
9(8x + 6) = 10(7x + 6) ← distribute parenthesis on both sides
72x + 54 = 70x + 60 ( subtract 70x from both sides )
2x + 54 = 60 ( subtract 54 from both sides )
2x = 6 ( divide both sides by 2 )
x = 3
Thus
Tony = 8x = 8 × 3 = 24
Vihaan = 7x = 7 × 3 = 21
Answer:
Step-by-step explanation:
rate of change or slope is 1/2.
The equation of a line is y = mx + b, m is the slope.
when x is -2, y is 5.
5 = (1/2)*(-2)+b
b = 6
The equation y = x/2 + 6
Just be sure to use the distance formula! For example: (2,3),(2,-1)
D= sqr root [(2-2)^2 + (-1-3)^2]
D= sqr root [0+16]
D= squr root (16)
Answer= 4