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aivan3 [116]
3 years ago
7

Plsss help on my test

Mathematics
1 answer:
sergeinik [125]3 years ago
8 0

Answer:

$282.5

Step-by-step explanation:

by the question,

305 - 3×7.5=282.5

∫350<500∫ so $285 is in his account

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Answer:

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Step-by-step explanation:

Given:

a = 5

d =  4

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The sum of first 35 terms of the arithmetic sequence  = ?

Solution:

Step 1 : finding the 35th term

a_n = a_1 +(n-1)d

a_35 = 5 +(35-1)4

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