1 year ago

Please help me with this one to (PLEASE NO LINKS)

Mathematics

1 answer:

morpeh [17]1 year ago

4 0

Answer:
7

Step-by-step explanation:

because if you spinned it , it has a 1/5 chance, if we divide 35 by 5 we can see its 7 meaning she could exect a average of 7 spins.

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An employee working in a machine shop is exposed to three different sources which emit noises at 81 dB, 91 dB, and 88 dB. What i

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Hello,
Please, see the attached file.
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3 years ago

A store owner paid $15 dollars for a book. she marked up the price of the book by 40% to determine it's selling price.

Tcecarenko [31]

A) $15 ÷ 40% =
15×.4= 6
15+6= 21

B) $38 × .25=9.5
38-9.5=28.50

28.50×.06=1.71
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I think this is how you do it. would wait for other answers as well to double check.

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3 years ago

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Find the value of x for the rectangle

Anit [1.1K]

(x+3)(2x-6)=26

2x(to the second power)-18=26

2x(to the second power) -18-26=26-26

2x(to the second power)-44 = 0

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3 years ago

The fourth term in an arithmetic sequence is 18 and the seventh term is 39. If the first term is a1 , which is an equation for t

evablogger [386]

Answer:

Step-by-step explanation:

The nth term: $a_n=a_1+d(n-1)$

So:

a₄ = a₁ + 3d

18 = a₁ + 3d ⇒ 3d = 18 - a₁

a₇ = a₁ + 6d

39 = a₁ + 6d

39 = a₁ + 2(18 - a₁)

39 = a₁ + 36 - 2a₁

39 = 36 - a₁

a₁ = -3

3d = 18 - (-3)

3d = 21

d = 7

So the nth term:

$a_n = -3 + 7(n-1)\\\\a_n=-3 +7n - 7\\\\a_n = 7n - 10$

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2 years ago

!!!WILL MARK YOU BRAINLIEST!!! !!!CORRECT ANSWERS ONLY!!!<br><br> WHAT IS 2 TIMES 80?

pochemuha

Answer:

160

Step-by-step explanation:

2*80=160 hope this helps

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2 years ago

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