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Digiron [165]
3 years ago
5

40 students at a particular school are randomly selected for a survey. 18 have blue eyes. If there are 400 students at this scho

ol, what is a reasonable estimate of the total number of students with blue eyes?
Mathematics
2 answers:
podryga [215]3 years ago
7 0
A reasonable estimate would be 180 students with blue eyes
barxatty [35]3 years ago
3 0

Answer:

180 students have blue eyes

Step-by-step explanation:

If 18/40 students have blue eyes, when the total number rof students is 400

18/40 × 400=180

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Find the perimeter and area of the figure.
iogann1982 [59]

Answer:

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8 0
3 years ago
Li walks at a constant rate of 7 ft. in 4 seconds. The table shows the relationship of feet to seconds. What is the constant of
Kisachek [45]

Answer:

The rate is 1.75 feet/seconds or 105 feet/minute.

Step-by-step explanation:

Given that,

Li walks at a constant rate of 7 feet in 4 seconds

To find the constant of proportionality, divide 7 feet by 4 seconds.

So,

k=\dfrac{7\ \text{feet}}{4\ \text{seconds}}\\\\k=1.75\ \text{ft/s}

1.75 ft/s is the constant of proportionality

We know that, 1 minute = 60 seconds

k = 105 feet/minute

So, the rate is 1.75 feet/seconds or 105 feet/minute.

4 0
3 years ago
Show that f(x)=πx-2 and f-1(x)=(x+2/π) are inverse functions of one another
iVinArrow [24]
They are not inverse functions of one another. For f(x) and g(x) to be inverses of each other, f(g(x)) = x. In this case, pi(x+2/pi)-2 = pi* x, which is not x.
5 0
4 years ago
What do i do on this problem?? do i divide or subtract? i'm very confused
Mrrafil [7]
You add 6 to the numbers on the left so like it’s -8 on the left just add 6 so that’s -2 and so on
5 0
3 years ago
Read 2 more answers
Need Help ASAP!!!
Drupady [299]

Answer:

B) {(-2, -3), (-3, -2), (2, 3), (3, 2)}

Step-by-step explanation:

A function cannot have replicated x-coordinates. All the other answer choices do, so you would pick this one.

I am joyous to assist you anytime.

8 0
3 years ago
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