X + y = 40.....multiply by -4
4x + 6y = 180
-------------------
-4x - 4y = -160 (result of multiplying by -4)
4x + 6y = 180
------------------add
2y = 20
y = 20/2
y = 10 <===
x = 30
Answer:
Pedro and paola don't seem so happy together
PEMDAS- Parenthesis, Exponent, Multiplication, Division, Addition, Subtraction.
Mean = 62 in
SD = 2 in
At 16% = 0.16 and using Z tables,
Z≈ -0.99
x =(-0.99*2) + 62 ≈ 60 in
This represents jockeys who are shorter than 60 in.
Answer:
Step-by-step explanation:
C(0,0)
the length of AC is equal to BD
the length of BD is equal to AC
