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Ivanshal [37]
3 years ago
11

Write a mathematical expression for: the sum of twice a number n and 20.

Mathematics
2 answers:
navik [9.2K]3 years ago
8 0
2n + 20

Twice means to multiply by two
Sum means to add
faust18 [17]3 years ago
5 0
I belive is B hope that helped
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Answer:

26

Step-by-step explanation:

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26. PEMDAS

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The first term of an arithmetic sequence is -5, and the tenth term is 13. Find the common difference.
zzz [600]
Hello,

u_{1} =-5\\
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==\ \textgreater \  9d=18 \\
==\ \textgreater \  d=2


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Read 2 more answers
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