Answer:
7 x - 8 y = 5
x - 8 y = -13
6 x = 18 subtract equations
x = 3
7 (3) - 8 y = 5
8 y = 16 solve for y
y = 2
Solution : (3, 2)
Check:
3 - 8 * 2 = -13 agrees with second equation
Answer:
3400 m2
Step-by-step explanation:
Answer:
6.2 seconds
Step-by-step explanation:
To translate into math, the question is asking you "for what approximate t value does h = 0?" In order to solve, you can plug in 0 for h and solve for t.
0 = -16t^2 + 620
-620 = -16t^2
620 = 16t^2
38.75 = t^2
= t
6.2 ~~ t (rounding to the nearest tenth)
Don't forget your units!
Let me know if you need anything explained in more detail; I'm happy to help.
Answer: The log base 6 of x, which is written as
Work Shown:
Answer: x = 8
Step-by-step explanation:
- Distribute the 4 into (x - 3). The new equation should be 4x - 12 = 20.
- Add 12 on both sides. The new equation is 4x = 32.
- Divide 4 on both side. The solution is x = 8.