Answer:
3. The first equation can be multiplied by 3 and the second equation by 2.
Step-by-step explanation:
2 x + 3 y = 25 (1)
-3 x + 4 y = 22 (2)
Multiply equation (1) by 3 and (2) by 2.
3(2x) = 6x
2(-3x) = -6x
When you add the two equations, x will get cancelled last
12(3x+1<span>)
I hope helped ^-^</span>
Answer:
x = 10°
Step-by-step explanation:
Step 1:
92° + x° + 78° = 180° Supplementary Angles
Step 2:
x° + 170° = 180° Combine Like Terms
Step 3:
x° = 180° - 170° Subtract 170° on both sides
Answer:
x = 10°
Hope This Helps :)
Step-by-step explanation:
percentage of adults= number of adults over total number of persons times 100;
400/400+350*100
400/750*100
40/75*100
8/15*100
8/3*20
160/3
=53.3%
Answer:
The given congruence is false.
Step-by-step explanation:
Given : Expression 
To find : Determine whether the congruence is true or false ?
Solution :
The congruence is in the form 
where, x is the dividend
y is divisor
r is the remainder
So, We find 
We know, 10 is completely divide by 5 and we get quotient is 2 and remainder is 0.
As 
Therefore, The given congruence is false.
