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artcher [175]
3 years ago
14

Write an inequality that models a real world situation. Describe your situation and what a variable X represents

Mathematics
1 answer:
AfilCa [17]3 years ago
6 0

Answer:

The variable X represents:

X = the number of books

The real world situation can be:

1.) Jennie reads books. She reads each books for

2.) Jennie wants to read book at least 5 books today.

Write an inequality that models the minimum number of books that Jennie needs to read.

The inequality for this situation is:

2x \:  \geqslant  \: 5

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What is the slope of line which goes through the points (-2,-1) and (2,3)?
Nat2105 [25]

Answer:

1

Step-by-step explanation:

m=(y2-y1)/(x2-x1)

m=(3-(-1))/(2-(-2))

m=(3+1)/(2+2)

m=4/4

m=1

6 0
3 years ago
Read 2 more answers
Two friends are collecting cards. Frank has 7 more than half the number of cards as his friend. Together they have 42 cards. How
Naddika [18.5K]

Answer:

The number of cards Frank has is 18 and the number of cards his friend has is 24.

Step-by-step explanation:

<u><em>The correct question is </em></u>

Two friends are collecting cards. Frank has 6 more than half the number of cards as his friend. Together they have 42 cards. How many cards does each friend have?

Let

x ----> the number of cards that Frank has

y ----> the number of cards that his friend has

we know that

Together they have 42 cards

x+y=42 ----> equation A

Frank has 6 more than half the number of cards as his friend

x=\frac{y}{2} +6 ---> equation B

Solve the system by substitution    

Substitute equation B in equation A

\frac{y}{2} +6+y=42

solve for y

\frac{3}{2}y=42-6\\\\\frac{3}{2}y=36\\\\y=36(2)/3=24

<em>Find the value of x</em>

x=\frac{24}{2} +6=18

therefore

The number of cards Frank has is 18 and the number of cards his friend has is 24.

7 0
3 years ago
Can someone Solve: 2x^2/3 = 8
Naddika [18.5K]

Isolate the variable by dividing each side by factors that don't contain the variable.

x = 2 √ 3 , − 2 √ 3

8 0
3 years ago
Graph the system of inequalities presented here on your own paper, then use your graph to answer the following questions: y &lt;
Mandarinka [93]
Part A:
 The first thing you should do is to graph both lines. Notice that one is of positive slope and another of negative slope.
 The solution of the inequation system is given by the shaded region. That is, all the points that are in the shaded region satisfy the system of inequations.
 Part B:
 the point (-2, -2) is NOT included in the solution area (it is not in the shaded region.
 Mathematically it is demonstrated by substituting inequalities and seeing that they are not satisfied
 inequality 1
 -2 <4 (-2) - 2
 -2 <-10 (false)
 inequality two
 -2> = - (5/2) (- 2) - 2
 -2> = 3 (false).

6 0
3 years ago
The price of an item costs $13 to make. It is marked up $6.50 to sell. What is the percent marked-up
Whitepunk [10]

(1 + x) (13) = 13+6.5

13x + 13 = 19.5

13x = 6.5

x = 0.5

The item was marked up by 50%

4 0
3 years ago
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