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alexandr402 [8]
3 years ago
10

What property is this? (10b+12b)+7b=(12b+10b)+7b

Mathematics
1 answer:
cluponka [151]3 years ago
3 0
Commutative Property

a + b = b + a

Because:

<span>(10b+12b)+7b=(12b+10b)+7b
</span>
(10b + 12b) in the first bracket is the same as (12b + 10b) 
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You have been given data about gas prices in 15 states. Comparing the two data sets below, what does the larger mean and median
Oksanka [162]

Comparing the two data sets shown below

<h3>What is standard deviation and variance?</h3>

Variance is the average squared deviations from the mean, while standard deviation is the square root of this number.

Both the mean and the median can be used to describe where the “center” of a dataset is located.

So, the mean of data in 2022 is more than mean of data in 2018.

It’s best to use the mean when the distribution of the data values is symmetrical and there are no clear outliers.

As the variance of 2022 more than in variance in 2018.

A high variance indicates that the data points are very spread out from the mean, and from one another.

As the standard deviation of 2022 more than in standard deviation in 2018.

The high standard deviation indicates data are more spread out.

The bigger the range, the more spread out the data.

Learn more about standard deviation, variance here:

brainly.com/question/17084031

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6 0
1 year ago
The marine needs 14 boats for the 42 people registered for a boat race. How many boats will they need for 6 people?​
Degger [83]

Answer:

2

Step-by-step explanation:

We can write a proportion to determine

42 people          6 people

---------------- = ----------------

14 boats                x boats

Using cross products

42x = 6*14

42x =84

Divide each side by 42

42x/42 = 84/42

x = 2

They will need 2 boats

5 0
3 years ago
The cost C (in dollars) for the care and maintenance of a horse and carriage is C=15x+2000 where x is the number of rides.
MissTica

Answer: 100 rides are needed to break even.


Step-by-step explanation:

We have given the cost function

C(x)=15x+2000 where x is the number of rides.

And rides cost 35$

⇒ revenue function would be 35 times x

i.e.R(x)=35 x , where x is the number of rides.

Break even point of a firm occurs when at a certain point x the total cost equals to the total revenue.

i.e. at break even point

total revenue=total cost

⇒35x=15x+2000

⇒35-15x=2000[subtract 15x from both sides]

⇒20x=2000 [simplify]

⇒x=2000/20[dividing both sides with 20]

⇒x=100

∴ 100  rides are needed to break even.

6 0
3 years ago
The weather report stated that tomorrow's low temperature will be -3 degrees. What does that statement mean?
Ket [755]

Answer:

It means that the lowest the temperature will get that day is -3 degrees

Step-by-step explanation:

6 0
2 years ago
Can you answer this math homework? Please!
Kay [80]

Step-by-step explanation:

x + 3y = 7 \\ 2x + 4y = 8 \\ x = 7 - 3y \\ 2(7 - 3y) + 4y = 8 \\ 14 - 6y + 4y = 8 \\ 14 - 2y = 8 \\  - 2y =  - 6 \\ y = 3 \\ x = 7 - 3(3) \\ x = 7 - 9 \\ x =  - 2

8 0
2 years ago
Read 2 more answers
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