X - y = 9
x + 2y = 27
You can subtract the top equation from the bottom
3y = 18
y = 6
x = 15
The two numbers are 15 and 6
Answer:
highest number is 118
middle number is 100
lowest number is 94
Step-by-step explanation:
R=24---between high and low is 24 numbers
M=104---average of the three numbers
highest number is 118
therefore if you subtract 24 from 118 therefore the lowest number is 94
Then i used a mean calculator and went up from 95 to 100 before the means matched.
Answer:
6
Step-by-step explanation:
Evaluate 4 z^2 - 3 z - 4 where z = 2:
4 z^2 - 3 z - 4 = 4×2^2 - 3×2 - 4
Hint: | Evaluate 2^2.
2^2 = 4:
4×4 - 3×2 - 4
Hint: | Multiply 4 and 4 together.
4×4 = 16:
16 - 3×2 - 4
Hint: | Multiply -3 and 2 together.
-3×2 = -6:
16 + -6 - 4
Hint: | Group the negative terms in 16 - 6 - 4 together and factor out the minus sign.
16 - 6 - 4 = 16 - (6 + 4):
16 - (6 + 4)
Hint: | Evaluate 6 + 4.
6 + 4 = 10:
16 - 10
Hint: | Subtract 10 from 16.
| 1 | 6
- | 1 | 0
| 0 | 6:
Answer: 6