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belka [17]
3 years ago
5

Can someone help me please​

Mathematics
1 answer:
lubasha [3.4K]3 years ago
5 0

Answer:

Who?

Step-by-step explanation:

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A group of students and workers entering a metro station were asked whether they were riding the bus or the subway. the two-way
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The addition of the row and column shows that the number of people polled will be 166.

<h3>How to calculate the number?</h3>

From the information given, the guest thing to do is to add the column. This will be:

= 48 + 118 = 166

Also, it's important to add the row. This will be:

= 69 + 97 = 166

Therefore, the number of people polled will be 166.

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2 years ago
An adult's dinner costs $7. A family of 2 adult's and 2 children pays $22 for their dinners. How many does a child's dinner cost
bonufazy [111]

Answer:

A child's dinner costs $4

Step-by-step explanation:

7 + 7 = 14

22 - 14 = 8

8 / 2 = 4

8 0
3 years ago
Convert the following measurements. Round your answers to two decimal places. a. 14,974 pounds to tons b. 8,047 ounces to pounds
Vikki [24]
For this case we have to know the following conversions:
 1 ton = 2204.62 pounds&#10;&#10;1 oz = 0.0625 pounds
 Now we apply the conversions:

 14,974 pounds to tons:
 (14974) * (1 / 2204.62) = 6.79 tons&#10;

 
8,047 ounces to pounds:
 
(8047) * (0.0625) = 502.94 pounds&#10;

 64 ounces to pounds:
 
(64) * (0.0625) = 4 pounds&#10;

 27 ton to pounds:
 
(27) * (2204.62) = 59524.74 pounds
5 0
3 years ago
Read 2 more answers
If a fair coin is tossed 8 times, what is the probability, to the nearest thousandth, of getting exactly 0 tails?
marissa [1.9K]

0.004 is the probability of getting exactly 0 tails :)

7 0
2 years ago
The area of a square in square feet is
Sedaia [141]

Answer:

Part 1) The expression for the perimeter is P=4(25z-3) or  P=100z-12

Part 2) The perimeter when  z = 15 ft. is P=1,488\ ft

Step-by-step explanation:

Part 1)

we have

625z^{2}-150z+9

Find the roots of the quadratic equation

Equate the equation to zero

625z^{2}-150z+9=0

Complete the square

Group terms that contain the same variable, and move the constant to the opposite side of the equation

625z^{2}-150z=-9

Factor the leading coefficient  

625(z^{2}-(150/625)z)=-9

625(z^{2}-(6/25)z)=-9

Complete the square. Remember to balance the equation by adding the same constants to each side

625(z^{2}-(6/25)z+(36/2,500))=-9+(36/4)

625(z^{2}-(6/25)z+(36/2,500))=0

Rewrite as perfect squares

625(z-6/50)^{2}=0

z=6/50=0.12 -----> root with multiplicity 2

so

The area is equal to  

A=625(z-0.12)(z-0.12)=[25(z-0.12)][25(z-0.12)]=(25z-3)^{2}

The length side of the square is b=(25z-3)

therefore

The perimeter is equal to

P=4b

P=4(25z-3)

P=100z-12

Part 2) Find the perimeter when  z = 15 ft.

we have

P=100z-12

substitute the value of z

P=100(15)-12=1,488\ ft

4 0
3 years ago
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