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den301095 [7]
3 years ago
5

Jeany bought 12 postcards which was twice as many postcards as joe bought. Ruth bought 3 times as many postcards as joe. How man

y postcards did they buy together?
Mathematics
2 answers:
nasty-shy [4]3 years ago
8 0

Answer:36 postcards

Step-by-step explanation:

jenny bought 12 post cards

joe bought half of the postcards jenny bought = 12/2 = 6

ruth bought 3 times the postcards joe bought = 3 x 6 = 18

total postcards bought by all = 12 + 6 + 18 = 36 postcards

Ludmilka [50]3 years ago
6 0

Answer: they bought 36 postcards.

Step-by-step explanation:

Jeany bought 12 postcards which was twice as many postcards as joe bought. It means that the number of postcards that Joe bought is

112/2 = 6 postcards

Ruth bought 3 times as many postcards as joe. It means that the number of postcards that Ruth bought is

3 × 6 = 18 postcards

Therefore, the number of postcards that they bought together would be

12 + 6 + 18 = 36 postcards

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