0.001 kilometers in 1 meter .
Step-by-step explanation:
Number for Breaststroke = 50
Number for Butterfly = 25
Ratio of Breaststroke to Butterfly
= 50 : 25 = 2 : 1.
The ratio value is 2/1.
(10 + x) / (y - 3)....quotient is the result of division
Casey is 18 years old and Ralph is 3 years old.
Step-by-step explanation:
Let,
Age of Casey = x
Age of Ralph = y
According to given statement;
x = 6y Eqn 1
In two years
x+2=4(y+2)
x+2=4y+8
x = 4y+8-2
x = 4y+6 Eqn 2
Putting value of x from Eqn 1 in Eqn 2
![6y=4y+6 \\6y-4y=6\\2y=6](https://tex.z-dn.net/?f=6y%3D4y%2B6%20%5C%5C6y-4y%3D6%5C%5C2y%3D6)
Dividing both sides by 2
![\frac{2y}{2}=\frac{6}{2}\\y=3](https://tex.z-dn.net/?f=%5Cfrac%7B2y%7D%7B2%7D%3D%5Cfrac%7B6%7D%7B2%7D%5C%5Cy%3D3)
Putting y=3 in Eqn 1
![x=6(3)\\x=18](https://tex.z-dn.net/?f=x%3D6%283%29%5C%5Cx%3D18)
Casey is 18 years old and Ralph is 3 years old.
Keywords: word problems, substitution method
Learn more about substitution method at:
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Answer:
y = 2 x minus 6
Step-by-step explanation:
(-6,-18) and (-1,-8)
Slope: (-8 - -18)/(-1 - -6)
10/5
2
y = 2x + c
-8 = 2(-1) + c
-8 = -2 + c
c = -6
y = 2x - 6
y = 2x - 4