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slava [35]
3 years ago
11

A library contains 2000 books. there are 3 times as many non-fiction books as fiction books. write and solve a system of equatio

ns to determine the number of non-fiction and fiction books.
Mathematics
1 answer:
Svetllana [295]3 years ago
4 0
X = fiction books

3x = nonfiction books

x + 3x = 2000

After you solve for x, (which is the number of fiction books), you can plug its value into the equation for nonfiction books (3x) and that will give you the number of non fiction books.
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75.2% of 130 what is the answer and work
Ainat [17]

Answer:97.76

Step-by-step explanation:x=97.76

Explanation:

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8 0
3 years ago
If g:<br>x = 2x-3 4 find 9^-1 (-3)​
vfiekz [6]

The inverse function of g(x) will be g⁻¹(x) = (4x + 3) / 2. Then the value of the inverse function, at x = -3, will be 4.5.

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

Let the function will be

f: X → Y

Then the inverse function will be

f⁻¹: Y → X

The function is given below.

g(x) = (2x – 3) / 4

Then the inverse function of g(x) will be

g⁻¹(x) = (4x + 3) / 2

Then the value of the inverse function, at x = -3, will be

g⁻¹(-3) = [4(-3) + 3] / 2

g⁻¹(-3) = -4.5

Learn more about inverse function here:

brainly.com/question/19425567

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8 0
2 years ago
Set up an equation that can be used to solve the problem. Solve the equation and determine the desired value.
Nataly [62]

Answer:  $454.55

Step-by-step explanation:

Tito's weekly salary is always $ 500 per week.

But your weekly commission income depends on the sales you make. Your commissions are 55%.

If we call x the dollar amount of all sales made by Tito in a week, then his income z(x) is given by the following equation:

z (x) = 0.55x + 500

We wish that z (x) = 750.

Then we equate the equation to 750 and solve for the variable x.

0.55x + 500 = 750\\\\0.55x + 500-500 = 750-500\\\\0.55x = 250

\frac{0.55}{0.55}x = \frac{250}{0.55}

x = \$\ 454.55

Total sales made by Tito must be $454.55

7 0
3 years ago
Graph the system of equations on your graph paper to answer the question.
True [87]
(-2,3)

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7 0
3 years ago
The refrigerator part of a refrigerator-freezer has a volume of 27 cubic feet.
scZoUnD [109]

Answer:

324 cubic feet

Step-by-step explanation:

6 0
3 years ago
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