Solve the system by substitution -x-y-z= -8 -4x+4y+5z= 7 2x+2z= 4
2 answers:
You might be interested in
Let the required number is 2x ,
According to the condition,
➡ 10 times the sum of half of 2x and 6 = 8
Therefore the value of x is -5.2
And, required number is -5.2
According to the condition,
➡ 10 times the sum of half of 2x and 6 = 8
Therefore the value of x is -5.2
And, required number is -5.2
Answer:
Correct choice is A
Step-by-step explanation:
For the numbers 13 and 88, find the difference 88-13:
since 88-13=75 and (two arithmetic means tells you there will be three intervals), two arithmetic means will be
- 13+25=38;
- 38+25=63.
The only correct sequence is 13, 38, 63, 88.