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k0ka [10]
3 years ago
5

18 science club members have birthdays in the summer. This is 20% of the birthdays in the club. How many club members are there?

How many club members do not have birthdays in the summer
Mathematics
1 answer:
swat323 years ago
8 0
18 * 5 = 90
90 represents 100%, because there are 5 20% in 100%

In total there are 90 club members
80% = 71 do not have birthdays in the summer.
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Answer:

\theta=102.85^{\circ}

Step-by-step explanation:

Given that,

The radius of circle, r = 7 cm

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We need to find the angle of the sector. The formula for the area of sector is given by :

A=\dfrac{\theta}{360}\pi r^2

Solve for \theta.

\theta=\dfrac{360A}{\pi r^2}\\\\\theta=\dfrac{360\times 44}{\dfrac{22}{7}\times 7^2}\\\\\theta=102.85^{\circ}

So, the angle of the sector is equal to 102.85^{\circ}.

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The sum of two consecutive numbers is -49 what are they
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Answer:

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Step-by-step explanation:

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The drama club sold bags of candy and cookies to raise money for the spring show. Bags of candy cost $5.50 and bags of cookies c
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Let's assume

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so, we get

y=x+5

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=5.50x

bags of cookies cost $3.50

so, total cost of cookies is

=3.50y

so,

total cost = (total cost of candy)+(total cost of cookies)

we get

total cost =5.50x+3.50y

so, we can plug

5.50x+3.50y=53.50

now, we can plug y

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now, we can find y

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so,

the number of bags of candy =4

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