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Triss [41]
3 years ago
8

Plssssss helppppp again

Mathematics
2 answers:
NemiM [27]3 years ago
6 0

Answer:

Only A

Step-by-step explanation:

For A, the y coordinate does represent the total cost of electricity for 4 hours. If you see the corresponding numbers on the chart, they both work. As for B, I used a proportional relationship with A to calculate if B works. Work: $120/4 hours. Divide both sides by 4 and u get $30 per hour, which means B is incorrect. C is incorrect because the answer is A.

OleMash [197]3 years ago
5 0

Answer:

The answer is B

Step-by-step explanation:

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zimovet [89]
I believe the answer is B: 3 + 7 + (-10).
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3 years ago
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Consumer complaints are frequently reported to the Better Business Bureau. Industries with the most complaints to the Better Bus
Licemer1 [7]

Answer:

Let the complaints by Industry be CbI

CbI               Frequency

Bank            26

Cable           44

Car               42

Cell               60

Collection     28

b) Percentages

CbI               percentage (%)

Bank              13

Cable            22

Car                21

Cell               30

Collection     14

c) The industry with the highest number of complaints is the Cell Industry.

d) The Bar Chart is attached to this solution. It was constructed in the Ms Excel suite.

Step-by-step explanation:

a) The frequencies are simply the number of times each industry sector sent in a complaint. So, it's straight forward to present.

b) The percentage for each industry is done in comparison to the the total amount of complaints received.

Percentage for each industry = 100% × (Number of complaints from that industry)/(Total number of complaints)

Total amount of complaints received = 200

For Bank industry,

Percentage = 100% × (26/200) = 13%

For the Cable Industry,

Percentage = 100% × (44/200) = 22%

For Car industry,

Percentage = 100% × (42/200) = 21%

For Cell industry,

Percentage = 100% × (60/200) = 30%

For Collection industry,

Percentage = 100% × (28/200) = 14%

c) The industry with the highest number of complaints is the one with the highest frequency and percentage, and that is the Cell Industry.

d) The Bar Chart is attached to this solution. It was constructed in the Ms Excel suite.

7 0
3 years ago
Kate can mow lawns at a constant rate of 4/5 lawns per hour. How many lawns can Kate mow in 20 hours?
weqwewe [10]

Answer:

16 lawns

Step-by-step explanation:

set up a proportion:

(4/5 ÷ 1) = (x÷20)

cross-multiply:

5x = 80

x = 16

8 0
3 years ago
Word problem:
Jlenok [28]

Answer:

Below.

Step-by-step explanation:

30 kg 500g + 28kg 700g

= 58kg + 1200g

= 59kg 200g.

Difference

= 30 kg 500g - 28kg 700g

= 2kg + 500 - 700

= 2kg - 200g

= 1kg 800g.

3 0
3 years ago
1. If you invest $500 in an account that earns 3.5% annually compounded monthly. How
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A

Answer with explanation
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