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Ne4ueva [31]
3 years ago
15

Jesssie has a piece of wood that is 8 feet long. He needs to cut pieces that are 7/8 of a foot-long. How many pieces will he be

able to make?
Mathematics
1 answer:
sergeinik [125]3 years ago
4 0

8/7.8=

8 x 8/7=

64/7=

9.14

The answer is 9 pieces  


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What is the anwser for 7x−x
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2 years ago
[x÷(y–1)](−4)–[xy+(−3)]÷(−1) if x=−5, y=−2
IrinaK [193]
The result is 1/3.

_____
The first attempt in the attached picture has parentheses in the wrong place for the second term. This simplifies to
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5 0
3 years ago
Please help me. (20 points)
alexandr402 [8]

Hello from MrBillDoesMath!

Answer:

75

Discussion:


A plane triangle has 180 degrees. Using this in the diagram gives  

x + 81 + angle BAC = 180             (***)

(The diagram is a bit fuzzy but I think the above numbers are accurate)

The diagram also shows that  (156 + angle BAC )= 180 as a straight line has 180 degrees. So

angle BAC = 180 - 156 = 24

Substituting this in (***) above gives

x + 81 + 24 = 180 =>

x + 105 = 180   =>               (as 81 + 24 = 105)

x = 180  107 = 75


Check: Does

x + 81 + angle BAC = 180   ?

75 + 81 + 24 = 180.  Yes




Thank you,

MrB

7 0
2 years ago
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