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3 years ago

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Which equation best represents this situation? The number 39 is equal to 13 subtracted from an unknown number. A. 39 = r ÷ 13 B.

39 = 13 + r C. 39 = r – 13 D. 39 = 13r

2 answers:

max2010maxim [7]3 years ago

8 0

Let's translate the English into Math language:

39 = r-13

neonofarm [45]3 years ago

6 0

"The number 39 is equal to"

39=

"thirteen subtracted from an unknown number"

r-13

Putting it together you have:

39=r-13

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Ivory says that the equation 2x+2=x+1 has no solution because the left-hand side is double the right-hand side. Is Ivory Correct

lorasvet [3.4K]

Answer:

No, Ivory is incorrect. The equation does have a solution, and the solution is x = -1.

Step-by-step explanation:

We try to solve the equation first.

2x + 2 = x + 1

We want all variables on the left side and all numbers on the right side.

Subtract x from both sides.

x + 2 = 1

Subtract 2 from both sides.

x = -1

Check: Plug in -1 for x on both sides and see if it makes a true statement.

2x + 2 = x + 1

2(-1) + 2 = -1 + 1

-2 + 2 = 0

0 = 0

0 = 0 is a true statement, so the solution x = -1 is the correct solution.

Answer: Ivory is incorrect. The equation does have a solution, and the solution is x = -1.

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3 years ago

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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>

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Cost of additional luxury potatoes = $5 per potato

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

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

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

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Here’s the correct answer and the way i got to it. Hope this helps :)

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