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Bess [88]
2 years ago
11

I have a question on my summer packet. Find 33% of 90

Mathematics
2 answers:
Luda [366]2 years ago
8 0
===========================
1)  \frac{90*33}{100}=29,7




Marina CMI [18]2 years ago
4 0
0.33\cdot90=29.7
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What is the average of 3/8 + 2/4 + 5/8 + 7/8 + 1 1/8 + 1 5/8 + 1 7/8 + 4
melisa1 [442]

Answer:

1 3/8

Step-by-step explanation:

Well to find the average or the mean we need to add all the numbers,

3/8 + 2/4 + 5/8 + 7/8 + 1 1/8 + 1 5/8 + 1 7/8 + 4

= 11

Then we divide t by the number of numbers in the set.

11 ÷ 8 = 1 3/8

<em>Thus,</em>

<em>the average in the set is 1 3/8.</em>

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<em>Hope this helps :)</em>

4 0
2 years ago
what will the equation be for this "Ryan is saving money to buy a skateboard that costs $85. He has already saved $40. He plans
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weir

Step-by-step explanation:

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3 years ago
12-8.067 <br><br> please help
Gekata [30.6K]

Answer:

Hope this is hepl full

3.933

Step-by-step explanation:

12.000

-<u>8</u><u>.</u><u>0</u><u>6</u><u>7</u>

<u> </u><u>3</u><u>.</u><u>9</u><u>3</u><u>3</u>

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3 years ago
The table below shows the probability distribution of students in a high school with 1500 students. What is the expected value f
lakkis [162]
D for sure I hope it helps and I know I’m 100% right because I already had this question somewhere else dude so yeah
4 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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