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finlep [7]
3 years ago
14

How can the Associative Property be used to mentally find 48 +82? i know the answer is 130. don’t answer the expression plz.❗️❗️

❗️
Mathematics
1 answer:
77julia77 [94]3 years ago
3 0
You can look for friendly numbers such as
48 and 2, split 82 in 80 and 2 and then associate the numbers conveniently

48+ (2+80)=
(48+2)+80=
50+80 which you can do it and is 130 or

50+80=
50+50+30=
100+30 which is 130

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I cant resolve this equation : 2x = -2x + 8, can you help me please
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Answer:

x = 2

Step-by-step explanation:

OK so lets do it together.

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ABCD is a parallelogram. If a CDA - 57 then BCD-_?
Paha777 [63]

Answer:

57

Step-by-step explanation:

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