Solving for y means to get that variable on one side of the equation and everything else needs to be on the opposite side of y.
We also know x is equal to 28. So, we can replace x with 28.
Now the equation will look something like 28 + 3y = 28
Now let us solve it.
28 + 3y = 28
First, subtract 28 from each side of the equation.
(28 + 3y) - 28 = 28 - 28 =
3y = 0
Now divide each side by 3.
3y / 3 = 0 / 3
y = 0/3
If a fraction has a numerator of 0, that means it's 0.
So, y is equal to 0.
2 weeks = 14 days
(14 x 3)/8 =
42/8 =
21/4
Sara will need to pack 21/4 litres of fuel
C^2=a^2+b^2-2abcosC
13^2=10^2+11^2-2×10×11×cos(°)
169=100+121-220cos(°)
220cos(°)=100+121-169
220cos(°)=52
cos(°)= 13/55
°=cos-1(13/55)
°=76.328°
Kelly's sister is x years old.
Kelly is 3 years younger than her sister, so Kelly is x - 3 years old.
The sum of their ages is x + x - 3 = 2x - 3.
The sum of their ages is 34, so
2x - 3 = 34
2x = 37
x = 18.5 Kelly's sister's age.
x - 3 = 18.5 - 3 = 15.5 Kelly's age.
Kelly's sister is 18.5 years old.
Kelly is 15.5 years old.
2(10)+5 = 25. The answer is A
