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egoroff_w [7]
2 years ago
10

As part of a survey, 150 students were asked to name their favorite class. 50 points

Mathematics
1 answer:
disa [49]2 years ago
5 0
A:40%
If you put 60 over 150 and x(percent of students) over 100 and cross multiply 100 and 60, you will get 6000. You then divide that by 150 which leaves you with 40 as x and 40 over 100 is 40%.
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A^2(64a^2-3)/3=27-4a^2/4
frutty [35]
The answer is a = 3/4 = 0.75

First get rid of the paranthesis,
{a}^{2} (64 {a}^{2}  - 3) = 64 {a}^{4} -  3 {a}^{2}
Then set the denominators equal:
\frac{ 256 {a}^{4}  - 12 {a}^{2}}{12}  =  \frac{81 - 12 {a}^{2} }{12}
Then remove the denominators and solve:
256 {a}^{4}  - 12 {a}^{2}  = 81 - 12 {a}^{2}
Eliminate -12a^2 by adding 12a^2 to both sides:
256 {a}^{4}  = 81
Take the fourth root of them or take the square root twice:
\sqrt[4]{256 {a}^{4} }  =  \sqrt[4]{81}   \\  4a = 3
Divide both sides by 4:
a =  \frac{3}{4}  = 0.75
7 0
3 years ago
The quantity is a rate in formula d=rt.​
Nataliya [291]

Answer:

hi

Step-by-step explanation:

Distance Formula D RT

Use the formula r = d/t. Your rate is 24 miles divided by 2 hours, so: r = 24 miles ÷ 2 hours = 12 miles per hour

5 0
3 years ago
4x+25=57<br>valor de x por favor​
sukhopar [10]

Answer:

4x=8

Step-by-step explanation:

4x=32

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8 0
3 years ago
Read 2 more answers
When x is 6, then y is <br><br>x: 2 3 4 5 6 <br>y:-3 -2 -1 0 ?<br><br>Complete the table.​
podryga [215]

Answer:

1

Step-by-step explanation:

for the equation of finding y is x - 5 = y

2 - 5 = -3

3 - 5 = -2

4 - 5 = -1

5 - 5 = 0

<u><em>6 - 5 = 1, </em></u> therefore, y is 1

4 0
3 years ago
Read 2 more answers
The perimeter of the isosceles triangle shown is 53 cm. What is the value of x?<br><br>​
dangina [55]

Answer:

21 cm

Step-by-step explanation:

Since this is an isosceles triangle, the two sides with a line through them must have the same value of x. Therefore, you can set up the following equation:

2x+11=53

2x=42

x=21 cm

Hope this helps!

7 0
3 years ago
Read 2 more answers
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