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DiKsa [7]
2 years ago
11

A shop owner bought 30 files and some diaries .he paid $82.50 for the files.each diary cost 10 times as much as a file.what was

the cost of each diary?
Mathematics
1 answer:
Novay_Z [31]2 years ago
7 0
<h3>✽ - - - - - - - - - - - - - - -  ~<u>Hello There</u>!~ - - - - - - - - - - - - - - - ✽</h3>

➷ Divide total cost by the number of files:

82.50/30 = 2.75

Multiply by 10:

2.75 x 10 = 25.5

The cost was $27.50

➶ Hope This Helps You!

➶ Good Luck (:

➶ Have A Great Day ^-^

↬ ʜᴀɴɴᴀʜ ♡

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A geometric sequence has a first term of 3 and a fourth term of 81÷8.<br><br> Find the eighth term
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The eighth term is therefore:

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W are r are not valid grades. I have attached the table associated with this question

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Find the measures of the four numbered angles
Genrish500 [490]
First, find out x
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3x+30=180
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notice the two inner lines are marked as congruent, so 
∠4=∠5=65
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Name the right bottom angle ∠7, ∠3=∠7 and ∠3+∠7=the exterior angle 100 degree, therefore, ∠3=50
∠2+∠3=∠4, therefore, ∠2=∠4-∠3=65-50=15
∠1=50, ∠2=15, ∠3=50, ∠4=65
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3 years ago
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