MATHEMATICS HIGH SCHOOL

5. The recent electric bills for the Cox family were as follows: September, 87.55; October, 97.34; November, $100.44; and December, $156.88. What's their average monthly electric bill cost?​

Answers

Answer 1
Answer:

Answer:

$110.55.

Step-by-step explanation:

To find the average monthly electric bill cost for the Cox family, you need to add up the costs for each month and then divide the sum by the number of months.

Here are the steps:

1. Add up the costs for each month:

- September: $87.55

- October: $97.34

- November: $100.44

- December: $156.88

The sum of these costs is $87.55 + $97.34 + $100.44 + $156.88 = $442.21.

2. Determine the number of months. In this case, there are 4 months.

3. Divide the total cost by the number of months to find the average:

Average monthly electric bill cost = $442.21 ÷ 4 = $110.55.

Therefore, the Cox family's average monthly electric bill cost is $110.55.
Answer 2
Answer:

Answer:

Their average monthly electric bill is at 110,55

Step-by-step explanation:

To get the awnser you have to add all the numbers together, then you have to devide the number yoy got with how many number there are.

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Solve i=Prt for t, if I=105, P=700, and r=0.05
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How many years will it take a major hamburger fast food chain to sell 45,000,000 burgers if it sells approximately 12,350 burgers per day? Show work

Answers

1 day.....12,350 b \n x...........45,000,000b \n\n x=(1*45,000,000)/(12,350) \n\n x=3,643.7 :365 \ (days) \n\n x=9,98 \ days \n\n \boxed{x=9,98\approx 10 \ years}
If a burger joint sells 12,350 burgers a day, it will take about 10 years to sell 45,000,000 burgers. I say this because 45,000,000 divided by 12,350 is 3643.72. That is how many days it would take to sell 45,000,000 burgers. Now, if you divide 3643.72 by 365 you get 9.98. 9.98 is how many years it would take to sell 45,000,000 burgers.
Hope this helps! :)

The formula for the area of a triangle is A = (1/2)bh, where b represents the length of the base and h represents the height. Solve the formula for b.Then, using the information from the previous problem. If a triangle has an area of 192 mm2, and the height measures 12 mm, what is the measure of the base? 

Answers

192=1/2 x b x 12
192=6b
b=32mm

Answer:

Step-by-step explanation:

192=1/2 x b x 12

192=6b

b=32mm

A statement we accept as true without proof is a?

Answers

Its called a postulate. Hope this helped!
Theorem which means a statement without a proof. 

Evaluate the expression for the value of x=-3. (If not possible, state the reason)

2x-2

Answers

2x - 2
2(3) - 2
6 - 2
4

Hi help me (2·4)²= this is other (6:2)²+

Answers

Answer:

(2·4)² = 64  /  (6*2)² = 144

Step-by-step explanation:

Follow PEMDAS :

Parenthesis first, so:

2 * 4

==> 8

Then Exponent:

8 ^2

==> 64

(2·4)² = 64

Do the same for (6:2)² :

Parenthesis first :

6 * 2

==> 12

Then Exponent:

12^2

==> 144

(6:2)² = 144

Answer:

1. 64 is the answer.

2. 144 is the answer

Step-by-step explanation:

First, multiply the numbers inside the parenthesis. So

1. 2*4 = 8

2. 6*2 = 12

Next, Use the exponents

1. 8^2

2. 12^2

Finally, solve using exponents.

1. 8^2 = 64

2. 12^2 = 144

So 64 and 144 is the answer.

Hope this helped,

Kavitha

There are 3 feet in each yard. Complete the table to show the number of feet in 1, 2, 3, and 4 yards.

Answers

Answer:

1 yard = 3 feet

2 yard = 6 feet

3 yard = 9 feet

4 yard = 12 feet

Answer:

1 yard-3 feet

2 yards-6 feet

3 yards-9 feet

4 yards-12 feet

Step-by-step explanation:
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