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Digiron [165]
3 years ago
8

Can someone plz help me

Mathematics
1 answer:
Pani-rosa [81]3 years ago
5 0

Answer:

I got 172.05

Step-by-step explanation:

I used a calculator on goo gle calculatorsoup.com

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In a class 28 of students, 5 have a cat and 21 have a dog. There are 4 students who do not have a cat or a dog. What is the prob
Sergeeva-Olga [200]

Answer:

15 have only a dog

5 have a dog and a cat

9 have only a cat

Step-by-step explanation:

20 + 14 = 34, there there are only 29 students, so 34 - 29 or 5 have both a dog and a cat

15 have only a dog

5 have a dog and a cat

9 have only a cat

6 0
3 years ago
Tickets for a concert are $40 for main-floor seats and $25 for upper level seats. A total of 2000 concert tickets were sold. The
Tems11 [23]

Step-by-step explanation:

<u>to show how many tickets were sold:</u>

x = upper floor tickets

y = main floor tickets

x + y = 2000

<u>to show total amount of revenue:</u>

25x + 40y = 62,000

<u>Finding answer using both equations:</u>

x + y = 2000

multiply each side by 25

25x + 25y = 2000 × 25

25x + 25y = 50,000

25x + 40y = 62,000

-

25x + 25y = 50,000

-----------------------------------

15y = 12,000

^ this is column subtraction

<em>^ this column subtraction is done to isolate y so we can work with one value rather than 2</em>

15y = 12,000

divide each side by 15

12,000 ÷ 15 = 800

y = 800

x + y = 2000

x + 800 = 2000

x = 1200

Therefore 1200 upper-level tickets were sold

800 main floor tickets were sold

4 0
3 years ago
How do i solve thus equation<br> 7+5(x-2)=12
ycow [4]

Answer: x=3

Step-by-step explanation:

7+5(x-2)=12

Open bracket

7+5x-10=12

Collect like terms

5x-3=12

5x=12+3

5x=15

X=15/5

X=3

3 0
3 years ago
Read 2 more answers
They are going to build wind turbines off the coast of Staten Island. It requires ⅙ square miles of land. How many turbines can
Mila [183]

Answer:

48

Step-by-step explanation:

Here we will show you how to calculate 8 divided by 1/6. We will give you the answer in fraction form and in decimal form.

Here is 8 divided by 1/6 displayed mathematically in colors:

8

 ÷    

1

6

The numbers in 8 divided by 1/6 are labeled below:

8 = whole number

1 = numerator

6 = denominator

To make it a fraction form answer, you multiply the whole number by the denominator and make the result the new numerator. The old numerator becomes the new denominator:

8 x 6

1

 =  

48

1

Thus, the answer to 8 divided by 1/6 in fraction form is:

48

1

To make the answer to 8 divided by 1/6 in decimal form, you simply divide the numerator by the denominator from the fraction answer above:

48 / 1 = 48

The answer is rounded to the nearest two decimal points if necessary.

48/1 is an improper fraction and should be written as 48.

3 0
2 years ago
What is the answer to 8x -2=3x + 12.25
earnstyle [38]
X=2.85
it simplifies to 5x=14.25, and then 14.25/5=2.85
5 0
3 years ago
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