if m+2/5=1/2If , then which of the following is true?
2m + 4 = 5
m + 2 = 2
2m + 2 = 5
m + 4 = 6
first find m;
m=1/2 - 2/5
then substituted on the equations and if the RHS = LHS so the equation is true.
To solve this equation, we need to isolate the variable "m".
Given the equation: m + 2/5 = 1/2
Step 1: Subtract 2/5 from both sides of the equation:
m + 2/5 - 2/5 = 1/2 - 2/5
This simplifies to:
m = 1/2 - 2/5
Step 2: Find a common denominator for 2 and 5, which is 10. Adjust the fractions accordingly:
m = 5/10 - 4/10
m = 1/10
Now, we can substitute this value of "m" into the answer choices to determine which one is true.
Option 1: 2m + 4 = 5
Substituting m = 1/10:
2(1/10) + 4 = 5
2/10 + 4 = 5
1/5 + 4 = 5
4/5 + 4 = 5
This is not true, as 4/5 + 4 is not equal to 5.
Option 2: m + 2 = 2
Substituting m = 1/10:
1/10 + 2 = 2
1/10 + 20/10 = 2
21/10 = 2
This is not true, as 21/10 is not equal to 2.
Option 3: 2m + 2 = 5
Substituting m = 1/10:
2(1/10) + 2 = 5
2/10 + 2 = 5
1/5 + 2 = 5
2/5 + 2 = 5
This is not true, as 2/5 + 2 is not equal to 5.
Option 4: m + 4 = 6
Substituting m = 1/10:
1/10 + 4 = 6
1/10 + 40/10 = 6
41/10 = 6
This is not true, as 41/10 is not equal to 6.
Therefore, none of the given options are true.