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2 years ago

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In a survey at a local university, 61% of students say that they get less than the recommended eight hours of sleep per night. I

n a group of 2700 students, how many would you expect get eight
students get eight or more hours of sleep per night.

1 answer:

wolverine [178]2 years ago

7 0

Oggga bookgaaa shshsggazbzghshs

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If 15 baseballs weighs 75 ounces how many baseballs with 15 ounces

igor_vitrenko [27]

Answer:

5

Step-by-step explanation:

75/15=5

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3 years ago

one third of a land is on maize, a fifth of the remainder is on potatoes and the rest which is 0.5 ha is on beans. how much of t

disa [49]

Answer: $1250\ m^2$

Step-by-step explanation:

Let x= Total land.

Then for Maize = $\dfrac{x}{3}$

For Potatoes = $\dfrac15(x-\dfrac {x}{3})=\dfrac15(\dfrac{2x}{3})=\dfrac{2}{15}x$

For beans = $x- (\dfrac{x}{3}+\dfrac{2}{15}x)=0.5 \ ha$

$\Rightarrow\ x- (\dfrac{5x+2x}{15})=0.5 \ ha\\\\\Rightarrow\ x- (\dfrac{7x}{15})=0.5 \ ha\\\\\Rightarrow\ \dfrac{15x-7x}{15}=0.5 \ ha\\\\\Rightarrow\ \dfrac{8x}{15}=0.5 \ ha\\\\\Rightarrow\ x=0.5\times\dfrac{15}{8} \ ha\\\\\Rightarrow\ x=0.9375 \ ha$

1 ha = 10000.00 m²

0.9375 ha = 9375 m²

Land for potatoes = $\dfrac{2}{15}(9375) =1250\ m^2$

Hence, $1250\ m^2$ of the land is on potatoes.

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3 years ago

Can you help me plz i learning it today

suter [353]

Answer:

I dont see a question.

Step-by-step explanation:

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3 years ago

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Step-by-step explanation:

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3 years ago

Write the expression for the sequence of operations described below. Double q, multiply the result by p, then add what you have

sweet-ann [11.9K]

Answer:

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Step-by-step explanation:

Double q (2q)

Multiply that by p (2qp)

Add that to r (2qp+r)

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3 years ago