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Tju [1.3M]
3 years ago
15

Expression form to 20+5×9

Mathematics
1 answer:
Karolina [17]3 years ago
3 0

Answer:65

Step-by-step explanation:

I'm not sure what you mean by "expression form," but if its simpliest form, you would simply do 20+5*9, and 5*9 is 45. 45+20 is 65

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How many ounces of a 15​% alcohol solution must be mixed with 4 ounces of a 20​% alcohol solution to make a 17​% alcohol​ soluti
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Answer:

6 ounces

Step-by-step explanation:

Let x = the number of ounces of the 15% alcohol solution needed to be mixed with the 4 ounces of 20% alcohol solution to obtain the 17% alcohol solution.

After converting the percentages to their decimal equivalents, set up the necessary equation as follows:

0.15x+0.20(4) = (x+4)(0.17) Simplify and solve for x.

0.15x+0.8 = 0.17x+0.68 Subtract 0.15x from both sides.

0.8 = 0.02x+0.68 Now subtract 0.68 from both sides.

0.12 = 0.02x Finally, divide both sides by 0.02

x = 6

You need to mix 6 ounces of 15% alcohol solution with 4 ounces of 20% alcohol solution to obtain 10 (x+4)ounces of 17% alcohol solution.

7 0
2 years ago
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Answer:

An exponential model can best describe the data

Step-by-step explanation:

The graph of the data set is shown in the attachment below. An exponential model can best describe the data. The respective equation can also be found in the graph

6 0
3 years ago
The total amount of time university students in the United States spend sleeping grooming, eating and drinking, and traveling is
kolezko [41]

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Step-by-step explanation:

6 0
2 years ago
Alec starts up a monthly subscription potato box. It costs 18.20 dollars per month,
denis-greek [22]

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B.  Using the formula above, the value of R(10, 3) is $197.

<h3>What is a function?</h3>

A function is an expression, rule, or law defining the relationship between an independent variable and a dependent variable.

Functions are used to define physical relationships between variables.

<h3>Data and Calculations:</h3>

Cost monthly subscription = $28.20 per box

Number of normal potatoes in each box = 16

Cost of additional luxury potatoes = $5 per potato

If the monthly revenue function, R, is given as R(s, n) where:

s = number of monthly subscribers

n = total number of luxury potatoes ordered

The monthly revenue, R, earned by Alec, R(s, n) = <u>$18.20s + $5n</u>.

The value of R(10, 3) is $197 ($18.20 x 10 + $5 x 3)

Thus, using the formula above, the value of R(10, 3) is $197.

Learn more about mathematical functions at brainly.com/question/25638609

#SPJ1

6 0
1 year ago
The square footage and monthly rental of 10 similar one-bedroom apartments yield the linear regression
Triss [41]

The footage of the room with a rental price of $1500 is 709 square foot

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A linear equation is given by:

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Let y represent the monthly rental price and x represent the square footage. Given the equation:

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The footage of the room with a rental price of $1500 is 709 square foot

Find out more on linear equation at: brainly.com/question/13763238

5 0
1 year ago
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