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Andre45 [30]
3 years ago
14

WILL FAN AND MEDAL The table below shows the size of nine families selected at random from two neighborhoods in a large city: Fa

mily Size (in number of people) Neighborhood Q 2 5 4 3 2 5 3 6 5 Neighborhood S 2 3 2 3 7 2 3 3 2 Which neighborhood appears to have a bigger family size? Explain your answer using two or three sentences. Make sure to use facts to support your answer.
Mathematics
1 answer:
Maru [420]3 years ago
3 0
We can compare the two data by their mean

Neighbourhood Q = \frac{2+5+4+3+2+5+3+6+5}{9}= \frac{35}{9}=3.9
Neighbourhood S = \frac{2+3+2+3+7+2+3+3+2}{9}= \frac{27}{9}=3

Neighbourhood Q has larger mean than Neighbourhood S so it appears Neighbourhood Q has larger family size.
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John is at a local bait shop; he wants to buy bait for his fishing trip. At the store, they are selling live bait for $12 a poun
Monica [59]

The system of inequalities is:  x\geq 3 and 12x+7y\leq 63

<em><u>Explanation</u></em>

Let x  be the amount of live bait and y  be the amount of natural bait.

As John would like to get at least 3 pounds of live bait, so the first inequality will be:  x\geq 3

Given that, price of live bait is $12 per pound and natural bait is $7 per pound. Also, he only has a budget of $63. That means, he can spend maximum $63

So, the cost for buying x pound of live bait =\$12x and the cost for buying y pound of natural bait =\$7y

Thus, the second inequality will be:  12x+7y\leq 63


5 0
3 years ago
Lydia drives from city a to city b to transport goods. her return speed is 3 times her departure speed and she takes 40 minutes
gizmo_the_mogwai [7]

Answer:

1 hour

Step-by-step explanation:

Hello, let's say that her departure trip takes t in minutes, as her return speed is 3 times her departure speed, she took t/3 for the return and we know that this 40 minutes less, so we can write.

t/3=t-40

We can multiply by 3

t = 3t -40*3 = 3t - 120

This is equivalent to

3t -120 = t

We subtract t

2t-120 = 0

2t = 120

We divide by 2

t = 120/2 = 60

So this is 60 minutes = 1 hour.

Thank you.

4 0
3 years ago
Kain graphs the hyperbola (y+2)^2/64 − (x+5)^2/36 = 1 . How does he proceed? Drag a value, phrase, equation, or coordinates in t
cupoosta [38]

Answer:

1st box: (-5,-2)

2nd box: up and down

3rd box: 8

4th box: +-4/3

5th box: y+2 = +-4/3 (x+ 5)

Step-by-step explanation:

Just took the k12 unit test, hope this helps!

7 0
3 years ago
Read 2 more answers
Kris and his dad built an ice rink. The area is 74.4 sq meters. The length is 12 meters what is the width
-BARSIC- [3]

Answer:

6.2 meters

Step-by-step explanation:

1) area = l*w

74.4 = 12x

x=6.2

3 0
2 years ago
14 times 0.999 blank 14
DedPeter [7]
14 times 0.999 blank 14
probably it is a relation symbol
=
>
<
<u>>
<</u>

so we know that x times 1=x
therefor
x times (less than 1)<x
0.999 is less than 1
0.999<1
therefor
14 times 0.999<14

blank is <
4 0
3 years ago
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