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notsponge [240]
3 years ago
8

Five hundred students were asked to identify their favorite electronic device. The results are shown in the circle graph. If 25,

000
students were surveyed, how many would you expect to chose a cell phone as their favorite electronic device?
Favorite Electronic Device
Other
11%
Cell
Phone
33%
Laptop
27%
Tablet
29%
8,805
8,250
16,500
10

Mathematics
1 answer:
riadik2000 [5.3K]3 years ago
4 0

Answer:

8,250

Step-by-step explanation:

step 1

we know that

For a total of 500 students, 33% chose a cell phone as their favorite electronic device

so

The number of students that chose a cell phone as their favorite electronic device is equal to

500(33/100)=165\ students

step 2

If 25,000  students were surveyed, how many would you expect to chose a cell phone as their favorite electronic device?

using proportion

\frac{500}{165}=\frac{25,000}{x}\\\\x=165(25,000)/500\\\\x= 8,250

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valina [46]

Answer:

a. angles A and C

b. angles B and D

Step-by-step explanation:

When two lines are parallel, it implies the value of the angle between them is 180^{0}. Thus the lines can not meet when extended continuously.

Alternate angles are two equal angles that lie on opposite sides of the transversal line. Alternate Interior Angles are a pair of equal angles on the inner side of two parallel lines.

Since lines DE and AB are parallel with alternate interior angles at B and D, then angles A and C with angles B and D are alternate interior angles.

i.e         < A = < C (alternate interior angle property)

            <B = < D (alternate interior angle property)

8 0
3 years ago
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ASAPPP 80 POINTSS How many times as large as the radius of a hydrogen atom are the radii of the mercury and the radii of the ura
Fittoniya [83]

Answer:

divide 1.5x10^-10 by 2.5x10^-11 which is 6 meaning the Mercury atom is 6 times larger than a hydrogen atom.

Step-by-step explanation:

im sure thats right !

3 0
3 years ago
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7^2•3^2+(1+2)^0•3-4^2•1
Kamila [148]
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6 0
3 years ago
Add or subtract. Express simplest form 1 2/5 - (-1 2/15
Elenna [48]
Its 2 8/15 Conversion a mixed number 1 2
5
to a improper fraction: 1 2/5 = 1 2
5
= 1 · 5 + 2
5
= 5 + 2
5
= 7
5


To find new numerator:
a) Multiply the whole number 1 by the denominator 5. Whole number 1 equally 1 * 5
5
= 5
5

b) Add the answer from previous step 5 to the numerator 2. New numerator is 5 + 2 = 7
c) Write previous answer (new numerator 7) over the denominator 5.

One and two fifths is seven fifths
Conversion a mixed number -1 2
15
to a improper fraction: -1 2/15 = -1 2
15
= -1 · 15 + (-2)
15
= -15 + (-2)
15
= -17
15


To find new numerator:
a) Multiply the whole number -1 by the denominator 15. Whole number -1 equally -1 * 15
15
= -15
15

b) Add the answer from previous step -15 to the numerator 2. New numerator is -15 + 2 = -13
c) Write previous answer (new numerator -13) over the denominator 15.

Minus one and two fifteenths is minus thirteen fifteenth
Subtract: 7
5
- (-17
15
) = 7 · 3
5 · 3
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15
= 21
15
- (-17
15
) = 21 - (-17)
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= 38
15

The common denominator you can calculate as the least common multiple of the both denominators - LCM(5, 15) = 15. The fraction result cannot be further simplified by cancelling.
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Hope this helps!!

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3 years ago
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