Can someone help me correct this:

The formula below gives a rule for the amount of medicine a child should have if you know the age of the child(a) and the amount , or dosage,(d) of the medine an adult would take.Find the child's dosage(d) for the given values of a and D. Round answers to the nearest tenth.

Using formula:
d=a/a+12(D)

when a=1yr,D=1.5ml

My answer:
d=a/a+12(D)

d=1/1+12(1.5)
d=1/13(1.5)
d=0.08(1.5)
d=.12

Even though you have solved the problem differently, you have two posts and two different solutions which makes for confusion. In the future, simply post under the same question heading and it will make things simpler for us to follow.

To correct the solution, let's go through the steps again:

The formula provided is: d = a / (a + 12D)

Given a = 1 year and D = 1.5 ml, we need to find d.

Substituting the values into the formula:
d = 1 / (1 + 12(1.5))
d = 1 / (1 + 18)
d = 1 / 19
d ≈ 0.0526

Therefore, the correct child's dosage (d) for the given values of a = 1 year and D = 1.5 ml is approximately 0.0526 ml when rounded to the nearest tenth.