Answer:
C
Step-by-step explanation:
Since y will have same value, y doesn't really matter. Thus,
We can solve for y in the 2nd equation as:
-3x - y = 4
-3x - 4 = y
Now we can plug it into the first and solve for x:
-9x + 4y = 8
-9x + 4(-3x - 4) = 8
-9x - 12x - 16 = 8
-21x = 8 + 16
-21x = 24
x = 24/-21
x = -8/7
Correct answer is C.
15. X= — 11/12
16. X= — 14/15
The formula for finding the area of a parallelogram is-
A=b*h Where A=Area b=base length h=height
A=10*4
A=40
We see a right triangle here.
Use the Pythagorean Theorem:
a^2+b^2=c^2
a & b=legs
c=hypotenuse
a^2+15^2=20^2
a^2+225=400
a^2=175
a=13.2287565553
a=13.2
The missing side is 13.2cm
Answer:
2 points throw = 37
3 points throw = 11
Step-by-step explanation:
Given that:
Let number of
2 points = x ; 3 points = y
x + y = 48 - - - (1)
2x + 3y = 107 ---(2)
x = 48 - y
Then ;
2(48 - y) + 3y = 107
96 - 2y + 3y = 107
96 + y = 107
y = 107 - 96
y = 11
From (1)
x = 48 - 11
x = 37
2 points throw = 37
3 points throw = 11
