Answer:
1,4.7
Step-by-step explanation:
x + y = 179
2/3x + 3/4y = 128
^ these are the equations
x + y = 179 -multiply by 3
2/3x + 3/4y = 128-multiply by -4
--
3x + 3y = 537 (result of multiplying by 3)
-8/3x - 3y = -512 (result of multiplying by -4)
--add
1/3x = 25
x = 25 * 3
x = 75
--
x + y = 179
75 + y = 179
y = 179 - 75
y = 104
(is this better?)
The college GPA for a high school GPA of 3.5 and a college board score of 600 will be 3.27
The equation to predict college GPA is:
where x1 is high school GPA and x2 is the college board score
According to the question, here x1 = 3.5 and x2 = 600
So, we will just plug the values of x1 and x2 into the equation.

So, the college GPA for a high school GPA of 3.5 and a college board score of 600 is 3.27
Answer:
265.50000
Step-by-step explanation:
We need to write system of equations to solve this problem.
we have 3 unknown variables.
a,b,c which are shorter leg, longer leg and hypotenuse.
b = a+6
c+6 = 2*a
c^2 = a^2 + b^2
(2a - 6)^2 = a^2 + (a+6)^2
4a^2 - 24a + 36 = a^2 + a^2 + 12a + 36
2a^2 = 36a
a^2 = 18a
a = 18
b = 24
c = 30