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Shtirlitz [24]
2 years ago
13

Lena’s guest house is 15 m long and 12 m wide. How long is the diagonal of the house?

Mathematics
2 answers:
Cloud [144]2 years ago
5 0
Answer : 19.21m

(split the house into 2 right angle triangles)
(using pythagoras - a^2+b^2+c^2)

15^2 + 12^2 = d^2
225 + 144 = d^2
369=d^2
d=(square root of 369)
d=19.2094
which rounds to 19.21
Georgia [21]2 years ago
3 0
Lena’s guest house is 8 m long
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andy writes an addition fact one addend is 9. the sum is 17.. what is the other addend? write the addition fact.
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2 years ago
Plz help question below
bearhunter [10]
Plan A costs a total of $95 since it says $95 for unlimited talk and text.

Plan B:
(.10 x 800) + (.05 x 1000)
The (.10 x 800) represents 10 cents per talk minute for 800 minutes.
The (.05 x 1000) represents 5 cents per text message for 1000 text messages.
Solve:
.10 x 800 = 80
.05 x 1000 = 50
80 + 50 = 130
This means Plan B will cost him $130 under these conditions.

Plan C:
20 + ((.05 x 800)+(.05 x 1000))
The 20 + represents a flat rate of $20 per month.
The (.05 x 800) represents 5 cents per call minute.
The (.05 x 1000) represents 5 cents per text.
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.05 x 800 = 40
.05 x 1000 = 50
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Plan D:
45 + (.10(800 - 500))
The 45 + represents a flat monthly rate of $45.
The (800 - 500) represents how many minutes he has to pay for with the 500 free.
The .10 is the cost per extra minute.
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This means Plan D will cost him $75 under these conditions.

In short:
Plan A- $95
Plan B- $130
Plan C- $110
Plan D- $75 
The least expensive among these is Plan D, which only costs $75 per month.
5 0
3 years ago
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