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boyakko [2]
3 years ago
6

Solving inequalities for word problems:

Mathematics
1 answer:
zepelin [54]3 years ago
5 0

For this case we have to:

x: Let the variable representing the unknown number

We algebraically rewrite the given expression:

Twice a number plus 10, is represented as:2x + 10

Three times that number less 4. is represented as:

3x-4

Thus, the complete expression is:

2x + 10> 3x-4

Subtracting 3x from both sides of the inequality:

2x-3x + 10> -4\\-x + 10> -4

Subtracting 10 from both sides of the inequality:

-x> -4-10

Equal signs are added and the same sign is placed:

-x> -14

We multiply by -1 on both sides, taking into account that the sense of inequality changes:

x

The solution is given by all values of "x" less than 14.

Answer:

x

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What is the complement of an 18 degree angle
svlad2 [7]

Answer:

The complementary angle is 72

Step-by-step explanation:

Complementary angles add to 90 degrees

Let x be  the complementary angle

x+18 = 90

Subtract 18 from each side

x = 90-18

x = 72

6 0
4 years ago
If y = 5x − 4, which of the following sets represents possible inputs and outputs of the function, represented as ordered pairs?
Mama L [17]

Answer:

x can be any value, x will be the input, y will be the output.

Step-by-step explanation:

If x = 3, If x = 6, If x = 9,

y = 5x - 4

y = 5 (3, 6, or 9) - 4

y = 11, y = 26, y = 41.

These are all possible sets of ordered pairs, but ANY Real number can be represented as X, and it will need to be in an order. These numbers are all positive, so in this case, you just have to draw out Quadrant 1 in a Coor. Plane.

<u>X (Input)  I  Y (Output)</u>

3              I  11

6              I  26

9              I  41

See, when x increases by 3, Y increases by 15. If you go on, it will be the same path, same pattern.

Hope This Helps! :)

8 0
3 years ago
Given the geometric sequence where a1 = 2 and the common ratio is 4, what is the domain for n?
Karo-lina-s [1.5K]
The general term is a_n (a sub n; n is a subscript)

The first term is a1
The second term is a2
The third term is a3
and so on...

The first term starts at n = 1. We replace the n in a_n with 1 to get a_1. A similar thing happens with n = 2 and onward

The domain is therefore the set {1, 2, 3, 4, 5, ...} which is the set of...
* Counting numbers
* Positive Whole numbers
* Natural numbers
Those are three ways to express the same set

We can also say n \ge 1 where n is an integer or whole number
A similar inequality would be n \ \textgreater \ 0 which is effectively the same as idea as the last inequality (n is also an integer or whole number).
4 0
4 years ago
Solve for q.<br><br> 20 − 3q = 5q − 20
galina1969 [7]

Answer:

q = 5

Step-by-step explanation:

40 - 3q = 5q

40 = 8q

5 = q

7 0
4 years ago
Read 2 more answers
Help please anyone I really need it.
alekssr [168]

Answer:

[See Below]

Step-by-step explanation:

Hey~There!

______________________

➜ To solve this, we have to subtract:

  • 100-13=87

➜ To make sure we are correct, we add:

  • 87+13=100

______________________

So your answer would be \bold~x=87.

______________________

Hope~this~helps~Mate!\\-Your~Friendly~Answerer,~Shane ヅ

6 0
4 years ago
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