198.9 grams = ounces solve using proportions

7.016 oz

(x oz)/(198.9 g) = (1 oz)/(28.349523125 g) . . . . . . . exact conversion factor

Multiply by 198.9 g.

... (x oz) = (198.9 g)×(1 oz)/(28.349523125 g)

... x oz ≈ 7.016 oz . . . . . rounded to 4 significant figures

Comment on this conversion

A US pound is defined in metric terms as 0.45359237 kg = 453.59327 g exactly. An ounce is 1/16 of a pound, so can be expressed exactly as 28.349523125 grams. The conversion in the other direction, ounces per gram, is a long repeating decimal that usually gets rounded after a few significant digits. It is appropriate to use an exact conversion, then round the result to the required precision.

step-by-step explanation:

you divide the denominator by the numerator on both sides and if the quotients are equal then the fractions are equivalent

6 adults and 9 children went.

a + c = 15

12a + 9c = 153

12(6) + 9(9) = 153

72 + 81 = 153