2 years ago

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Mathematics

2 answers:

mr_godi [17]2 years ago

7 0

Answer:

Step-by-step explanation:

edge2020

Ket [755]2 years ago

4 0

Answer:

14x +10y < 200

Step-by-step explanation:

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Ivan and Jeff buy a package of 8 pens for $4.00. Ivan wants 5 of the pens, and Jeff wants 3. How much should each student pay?

irga5000 [103]

$4 / 8 = 50 cents per pen

.5 * 5 = 2.50
.5 * 3 = 1.50

Ivan pays $2.50 and Jeff pays $1.50

3 0

1 year ago

Chris built a rectangular snow fort with a perimeter of 24 feet. The length of the fort was 8 feet less than 3 time the width. W

Ira Lisetskai [31]

24= x+y
X= 3y-8
24= 3y-8+y
24=4y-8
32=4y
Y=8
X=16

4 0

1 year ago

Find the average rate of change of the function defined by the following table. x y -2 -5 2 35 6 75 10 115

Pani-rosa [81]

By definition we have that the average rate of change of the function is:

$AVR = \frac{f(x2) - f(x1)}{x2 - x1}$

Evaluating the function for the complete interval we have that the AVR is given by:

$AVR = \frac{115 - (-5)}{10 - (-2)}$

Rewriting we have:

$AVR = \frac{115+5}{10+2}$

Simplifying the expression we have:

$AVR = \frac{120}{12}$

$AVR = 10$

Answer:

the average rate of change of the function defined by the table is:

$AVR = 10$

6 0

1 year ago

Given the function f(x) = −5x2 − x + 20, find f(3).

lana66690 [7]

f(x) = -5x^2 - x + 20;

f(3) = -5*3^2 - 3 + 20 = -5*9 - 3 + 20 = -45 - 3 + 20 = -28;

3 0

1 year ago

Read 2 more answers

What is the value of x is in the solution set of 2x - 3 > 11 - 5x

Burka [1]

Step 1: Simplify both sides of the inequality.
2 x − 3 > − 5 x + 11

Step 2: Add 5x to both sides.
2 x − 3 + 5 x > − 5 x + 11 + 5 x
7 x − 3 > 11

Step 3: Add 3 to both sides.
7 x − 3 + 3 > 11 + 3
7 x > 14

Step 4: Divide both sides by 7.
7 x
7 > 14
7
x > 2

7 0

1 year ago