> #mathematics , #studies > A person multiplied a number 3/5 instead of 5/3 what is the percentage error in the calculator What is the value of X as expressed in the simultaneous equation Y=4-2x 3x+2y=6?
Feb 3

# A person multiplied a number 3/5 instead of 5/3 what is the percentage error in the calculator What is the value of X as expressed in the simultaneous equation Y=4-2x 3x+2y=6?

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Feb 3
To find the percentage error, we need to calculate the difference between the correct value and the calculated value, and then divide it by the correct value. In this case, the correct value is 5/3 and the calculated value is 3/5.

Difference = 5/3 - 3/5 = (25 - 9)/15 = 16/15

Percentage error = (16/15) / (5/3) * 100% = (16/15) * (3/5) * 100% = 96/25 * 100% = 384%

Therefore, the percentage error in the calculator is 384%.

To find the value of x in the simultaneous equation, we can substitute the value of y from the first equation into the second equation:

Y = 4 - 2x
3x + 2(4 - 2x) = 6
3x + 8 - 4x = 6
-x + 8 = 6
-x = 6 - 8
-x = -2
x = 2

Therefore, the value of x in the simultaneous equation is 2.
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