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ankoles [38]
3 years ago
6

LaVant takes a survey of his class and finds that 1/5 of his classmates watch the same show on friday night. If there are 480 st

udents in his school, about how many of them watch the show? A) 32 B) 48 C) 96 D) 120
Mathematics
1 answer:
atroni [7]3 years ago
4 0

Answer:

Answer C:  96 students

Step-by-step explanation:

Take 1/5 of the 480 total students:

(1/5)(480) = 480/5 = 96

Answer C (96 students) is correct.

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NEED HELP ASAP 20POINTS The energy (and cost) needed to operate an air conditioner is proportional to the volume of a space that
insens350 [35]

Answer:

The daily cost of cooling the large warehouse with the same model of air conditioner is \$1,953

Step-by-step explanation:

we know that

If two figures are similar, then the ratio of its volumes is equal to the scale factor elevated to the cube

In this problem

The scale factor is equal to 2.5

so

The scale factor elevated to the cube is 2.5^{3} =15.625

To estimate the daily cost of cooling the large warehouse with the same model of air conditioner, multiply $125.00 by the scale factor elevated to the cube

so

\$125(15.625)=\$1,953

4 0
3 years ago
PLEASE HELP!<br>Calculate $40^{13} \pmod{85}.$
SVEN [57.7K]
In this type of calculations, we decompose 13 by checking the lowest powers of the base, that is 40. for example we check 40^2, or 40^3 and compare it to 85

Notice

40*40*40=64,000

so we check how many time does 85 fit into 64,000:

64,000/85=752.94

85*753=64,005;       64000-64,005=-5

this means that 

40^{3} =-5\pmod{85}

thus

40^{13} =40^{3*4+1}={(40^{3})}^{4}*40=(-5)^{4}*40 \pmod{85}=\\\\625*40\pmod{85}=(7*85+30)*40\pmod{85}=30*40\pmod{85}\\\\=1200\pmod{85}=(14*85+10)\pmod{85}=10\pmod{85}


Answer: 10 (mod85)

Remark, the set of all solutions is:

{......-75, 10, 95, .....}, that is 85k +10
7 0
3 years ago
In 1989, Dutch ice skater Dries van Wijhe skated 200 km at an average speed of 35.27 km/h. How long was he skating?
avanturin [10]
T = d/s

t = 200/35.27

Hope that helps!!!
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3 years ago
Which of the following is the linear parent function?
Naddika [18.5K]

Answer:

b

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Find the Value of a and b i dare u​
fenix001 [56]

Well it's a dare so I guess I'll do it.

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3 years ago
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