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mash [69]
3 years ago
13

–0.4|x + 5.75| – 4.3 = –8.7

Mathematics
1 answer:
ANTONII [103]3 years ago
6 0
5.25, -16.75
I think it’s wrong
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On a certain hot summer day, 481 people used the public swimming pool. The daily prices are 1.25 for children and 2.25 for adult
spayn [35]

Answer:the number of children that swam in the public pool that day is 222

the number of adult that swam in the public pool that day is 259

Step-by-step explanation:

Let x represent the number of children that swam in the public pool that day.

Let y represent the number of adult that swam in the public pool that day.

On a certain hot summer day, 481 people used the public swimming pool. This means that

x + y = 481

The daily prices are 1.25 for children and 2.25 for adults. The receipts for admission totaled to 86.25. This means that

1.25x + 2.25y = 860.25 - - - - - - - -1

Substituting x = 481 - y into equation 1, it becomes

1.25(481 - y) + 2.25y = 860.25

601.25 - 1.25y + 2.25y = 860.25

- 1.25y + 2.25y = 860.25 - 601.25

y = 259

Substituting y = 259 into x = 481 - y, it becomes

x = 481 - 259

x = 222

8 0
3 years ago
Math question down below
tensa zangetsu [6.8K]
The mean is the average.
To solve for the average we add all the numbers up and divide by how many numbers there are.
21, 23, 25, 25, 26, 28, 28, 28, 31, 33.
268 total, now divide by how many numbers there are.
268/10
Your mean is 26.8
8 0
2 years ago
Read 2 more answers
Solve for x: 5x + 2 = 4x - 9.
AlekseyPX

Answer:

Step-by-step explanation:

5x + 2 = 4x - 9

Collecting like terms

5x - 4x = -9 - 2

x = -11

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2 years ago
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The assembly time for a product is uniformly distributed between 6 to 10 minutes. the expected assembly time (in minutes) is
Marta_Voda [28]
The expected assembly time is the middle of the range of the uniform distribution, 8 minutes.
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3 years ago
How many values are within two standard deviation of the mean
murzikaleks [220]

Answer:

In statistics, the 68–95–99.7 rule, also known as the empirical rule, is a shorthand used to remember the percentage of values that lie within a band around the mean in a normal distribution with a width of two, four and six standard deviations, respectively; more accurately, 68.27%, 95.45% and 99.73% of the values lie ...

                                      please mark brainiest i just need 2 crowns

                                       so i could be an expert on brainly please  

                                       and thank u

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