Apharmacist weighed 475 mg of a substance on a balance of dubious accuracy. when checked on a balance of high accuracy, the weight was found to be 445 mg. calculate the percentage error in the first weighing.

6.416%

Step-by-step explanation:

The percentage error formula is given by :-

Given : The estimated weight of a substance = 475 mg

The actual weight of the substance = 445 mg

Then,

Hence, the percentage error in the first weighing. = 6.416%

51-50

step-by-step explanation:

let's solve your equation step-by-step.

4x+2=2x+12

step 1: subtract 2x from both sides.

4x+2−2x=2x+12−2x

2x+2=12

step 2: subtract 2 from both sides.

2x+2−2=12−2

2x=10

step 3: divide both sides by 2.

2x

2

=

10

2

x=5

step-by-step explanation: