Amother took her 3 children to get haircuts. each hairdresser charges a different amount. brian's haircut cost $15, lucy's cost $23, and jennifer's cost $32. normally, the mother tips 15% for the haircuts, but lucy's hair was badly cut, so the mother only tipped her hairdresser 10%.

how much did the mother spend in total for the 3 haircuts?

in problems involving proportions, we can use cross products to test whether two ratios are equal and form a proportion. to find the cross products of a proportion, we multiply the outer terms, called the extremes, and the middle terms, called the means.

hope it

step-by-step explanation:

6 adults and 9 children went.

a + c = 15

12a + 9c = 153

12(6) + 9(9) = 153

72 + 81 = 153