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Fudgin [204]
3 years ago
13

Solve them please, correct answers will be marked as brainliest & a follow :) thank you x​

Mathematics
1 answer:
DaniilM [7]3 years ago
4 0

Answer:

this is the answer that I could do please check it if I could help you

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Need help po. Salamat
Ede4ka [16]

Answer:

1. y ≥ 100

2. y ≤ 300

3. y ≥ 20000

4. 2y ≥ 80

5. 2y ≤ 90

Step-by-step explanation:

Let y be the variable.

1. The discount is not less than 100.

If the discount (i.e y) is not less than 100, it means it is either 100 or greater than 100.

This can be written as:

y ≥ 100

2. The cost of the book is at most 300.

This implies that the cost of the book (i.e y) is either 300 or lesser.

This can be written as:

y ≤ 300

3. His monthly income is at least 20000. This simply means that his monthly income (i.e y) is 20000 or greater than 20000.

This can be written as:

y ≥ 20000

4. Twice the number is at least 80.

Let the number be y.

Twice the number y can be written as:

2y

But twice the number is at least 80.

This means that twice the number is 80 or greater than 80. This can be written as:

2y ≥ 80

5. Twice the measure of the acute angle is not more than 90 degree.

Let the angle be y.

Twice the angle can be written as:

2y

But twice the measure of the angle is not more than 90 degree. This implies that twice the angle is 90 or lesser than 90. This can be written as:

2y ≤ 90

6 0
2 years ago
I NEEED HEEELLPP PLZ ANSWER FAST
Lelechka [254]

Answer:

yes

Step-by-step explanation:

6 0
3 years ago
When you would not need to use the quadratic formula
sergiy2304 [10]

Answer: When the quadratic equation  can be factored or solved by completing the square, you do not need to use the quadratic formula

Step-by-step explanation: In the form   ax² + bx + c

Whenever <em><u>a</u></em> is 1 (implied, no coefficient of x²) and the constant,  <u><em>c</em></u>, is a multiple of numbers whose sum or difference is equal to <u><em>b</em></u>, factoring is much quicker and easier than using the quadratic formula.

Even when there is a coefficient of x², there are procedures to find the factors and solve for x without resorting to the quadratic formula.

3 0
3 years ago
Please help tysmmm for your help guys number 16
evablogger [386]

Answer:

x = 6

Step-by-step explanation:

Hello!

x + 22 is equal to the sum of 5x - 6 and 4.

<h3>Solve for x</h3>
  • 5x - 6 + 4 = x + 22
  • 5x - 2 = x + 22
  • 4x - 2 = 22
  • 4x = 24
  • x = 6

The value of x is 6.

7 0
2 years ago
Which expression is not equivalent to the other expressions?
Paul [167]
-6(2x - 4) =  -6*(2x) -6*(-4) = -12x + 24

-(12x - 6) + 18 = -12x + 6 + 18 =  -12x + 24

-3(4x - 3) + 15  = -3*(4x) -3*(-3) + 15 = -12x + 9 + 24 = -12x + 24

-4(3x + 6) = -4*(3x) -4*(6) = -12x -24

All the expressions gave the same answer as -12x + 24, except for the last expression.

So, -4(3x + 6)  is not equivalent to the others.
4 0
3 years ago
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