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r-ruslan [8.4K]
3 years ago
5

(Essential Question) How do you create equations and use them to solve problems?

Mathematics
1 answer:
scZoUnD [109]3 years ago
5 0

Answer:

Step-by-step explanation:

equations are created to solve for a certain variable. you can use the data given in the word problem to formulate a valid equation that incorporates all important components of the word problem. the variable can be represented as any letter (most commonly x or y) to find a value that is inconsistent or unknown. this is helpful to find a certain thing in the problem, such as the amount of hours needed to earn a certain amount of money.

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Solve for x. Round all answers to the nearest tenth
marshall27 [118]

Answer: 42

Step-by-step explanation:

7 0
3 years ago
Here are the prices of five new pairs of hockey skates, in dollars: 59, 60, 65, 99, 175. The standard deviation is about $49. If
Phoenix [80]

Answer:

The standard deviation of the new data will be increased as compared to the previous standard deviation of the data.

Step-by-step explanation:

The prices are given to be : 59, 60, 65, 99, 175

Standard deviation = $49

Now, if we add or subtract any constant value to each of the terms then the standard deviation remains unchanged.

But, we add a new price in the given data that is $450

\text{New standard deviation = }\sqrt{\frac{\sum (\bar{x}-x_i)^2}{n}}\\\\\bar{x}\text{ is the mean of data after adding 450 and}\\x_i\text{ are the price values of the sample data}

Hence, Standard deviation is calculated to be 139.5

Therefore, the standard deviation of the new data will be increased as compared to the previous standard deviation of the data.

6 0
3 years ago
Read 2 more answers
If I have $1,050 dollars, and I want to buy something 6 times for $45 dollars, how much times can I buy it until I run out of mo
joja [24]

Answer:

140

Step-by-step explanation:

here,

You have 1050

now

$1050(45×6)

=140 items

8 0
2 years ago
What is 37/12 as a mixed number?
mixer [17]
1 and one - twelfth
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4 0
3 years ago
CAN SOMEONE HELP ME PLEASE ASAP!!!!!!
alexdok [17]

Answer:

12 in.

Step-by-step explanation:

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This case: c^2 - a^2 = b^2

1) 15^2 + 9^2 = b^2

2) 225 - 81 = 144

3) \sqrt{144 = 12

5 0
3 years ago
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