Danica is arranging flowers for a party. On each table, t, there will be a vase of 9 flowers and 3 bowls of flowers with f flowers inside. Danica needs an additional 12 flowers for a cake topper. This situation can be written as the following expression:

9t + (3f) t + 12

How many flowers should Danica purchase if she has 21 tables with 3 flowers in each bowl?

69

189

378

390

Question

Yahir Fritz

Mathematics

17 May, 12:15

Danica is arranging flowers for a party. On each table, t, there will be a vase of 9 flowers and 3 bowls of flowers with f flowers inside. Danica needs an additional 12 flowers for a cake topper. This situation can be written as the following expression:

9t + (3f) t + 12

How many flowers should Danica purchase if she has 21 tables with 3 flowers in each bowl?

69

189

378

390

+5

Answers (1)

Know the Answer?

Dax Long · Answer 1

On this question, we can use the order of operations. (pemdas)

First, we must fill in the missing numbers.

9*21 + (3*3) 21 + 12

Start in the parentheses.

(3*3) 21 = 9*21 = 189

189+189+12

The rest is just addition now!

189+189+12=390

390 is the correct answer.