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NISA [10]
3 years ago
6

This is the problem:Brooke has to set up 70 chairs in equal rows for the class talent show.But ,there is not room for more than

20 rows.What are the possible number of rows that Brooke could set up?
plz help what do i do
Mathematics
2 answers:
quester [9]3 years ago
7 0
Well you don't have to fill all 20 rows so you could just do 14 chairs in 5 rows and it would equal 70 chairs.
Leni [432]3 years ago
4 0

10 in each row, 7 in each row
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Answer:

72°

Step-by-step explanation:

Para el pentagono ABCDE,

m<C = (n - 2)(180)/n = (3)(180)/5 = 108

m<D = m<C = 108

Para el quadrilatero BCDE,

m<CBE + m<C + m<D + m<DEB = (n - 2)180 = 2(180) = 360

m<C = m<D = 108

m<CBE = m<DEB = x

m<CBE + m<C + m<D + m<DEB = 360

x + 108 + 108 + x = 360

2x + 216 = 360

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What is m∠A ? Enter your answer in the box.
miss Akunina [59]

Answer:

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Step-by-step explanation:

we know that

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substitute values and solve for x

x°+(3x-35)°+(x-35)°=180°

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x=250°/5=50°

Find the measure of angle A

∠A=(3x-35)°

substitute the value of x

∠A=(3(50)-35)=115°

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