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Brrunno [24]
3 years ago
15

At rolling hills middle school, the ratio of the total number of students to the number of students with pets is 3 to 1. If ther

e are 243 students at the school,how many students have pets
Mathematics
1 answer:
Roman55 [17]3 years ago
5 0
3/1 = 243/x
243 = 3x
81 students
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The coordinates of point A will be (0, 0) and the coordinates of B will be (3, 2).

To find these coordinates you have to graph the points and line segments. You will see that the 2 line segments start at points C and D and move down to the right. The endpoints of these segments will form your parallelogram.
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Type the correct answer in the box. Use numerals instead of words. If necessary, use / for the fraction bar. The simplest form o
sleet_krkn [62]

Answer:

x

Step-by-step explanation:

-2x²(x – 5) + x(2x² – 10x) + x

The simplest for of the above equation can be obtained as follow:

-2x²(x – 5) + x(2x² – 10x) + x

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Factorise

x.2x(x – 5) – 2x²(x – 5) + x

2x²(x – 5) – 2x²(x – 5) + x

Carry out the minus (–) operation

=> x

Therefore, the simplest form of expressing -2x2(x – 5) + x(2x2 – 10x) + x is x.

6 0
3 years ago
What is the area of this parallelogram? A=31 ½Ft²<br> A = 35 ft²<br>A = 47½ ft²<br> A = 66 ½ ft²​
Phoenix [80]

Answer:

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Step-by-step explanation:

3 0
2 years ago
Paige Sanders bought a dozen eggs at a store for 3.65. She bought the same size eggs the next week at the same store for 2.92. W
algol13
The percent of decrease is $0.73. To get that subtract 3.65-2.92 which equals 0.73. 

Hope it helps
6 0
3 years ago
Suppose the height of an 18 year old boy is normally distributed with mean 187cm fifteen percent of 18 year old boys have height
BARSIC [14]

Answer:

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P( x > 193) = 0.15

= 1- p(x less than or equal 193)

= 1 -p( z < (x- u) /sigma)

= 1- p( z< (193 - 187)/ sigma)

= 1- p( z< 6/ sigma)

P(z< 6/sigma) = 1 - 0.15

P(z < 6/sigma)= 0.85

6/sigma =1.036

Sigma= 6/1.036

Sigma= 5.79

P( x> 185) = 1- p( x< 185)

= 1- p (z < (185- 187)/5.79)

= 1- p( z< -0.345)

= 1- 0.365

= 0.635

P (x> 185) = 0.635 × 0.635

=0.403

3 0
3 years ago
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