1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Rus_ich [418]
3 years ago
12

The sum of twice a number and 13 is 75 • but in an algebraic equation DONT SOLVE

Mathematics
1 answer:
Alchen [17]3 years ago
5 0

Answer:

I won't solve it, because you asked me to.

Step-by-step explanation:

The first question we should ask ourselves is "what are we looking to solve?"

We are looking for some sort of value that satisfies that equation. We'll call it x

Reading from left to right:

The sum of twice a number and 13 is 75

         +            2              x              13 = 75

2x + 13 = 75

You might be interested in
What do you call any number that is expressed as an integer or as a ratio between two integers when 0 does not serve as the deno
Alchen [17]
A rational number because any number between two integers is a fraction.
5 0
3 years ago
Does anyone know how to do this? please help me
Elis [28]
On the x column, you would write 1, 2, 3, 4, and so on. Then, in the y box, you plug in that number into the equation. Write your answer in the y column. 

For example, if x = 1, then 1^2 + 2 - 8 = - 5. 
If x = 1, y= -5
8 0
3 years ago
Read 2 more answers
GCSE maths question about the turning point of the graph.<br> please help!
Neporo4naja [7]

Answer:

The coordinates of the turning point are (2, -9)

Step-by-step explanation:

The coordinates of the turning points of the quadratic equation

y = ax² + bx + c, are (h, k), where

  • h = \frac{-b}{2a}
  • k is the value of y at x = h

∵ The equation of the curve is y = x² + bx + c

→ By comparing it with the form above

∴ a = 1

∵ The point (0, -5) lies on the curve

→ Substitute x by 0 and y by -5 in the equation to find the value f c

∵ -5 = (0)² + b(0) + c

∴ -5 = 0 + 0 + c

∴ -5 = c

→ Substitute it in the equatin

∴ y = x² + bx - 5

∵ The point (5, 0) lies on the curve

→ Substitute x by 5 and y by 0 in the equation to find the value f c

∵ 0 = (5)² + b(5) - 5

∴ 0 = 25 + 5b - 5

→ Add the like terms in the right side

∴ 0 = 20 + 5b

→ Subtract 5b from bth sides

∵ 0 - 5b = 20 + 5b - 5b

∴ -5b = 20

→ Divide both sides by -5 to find b

∴ b = -4

→ Substitute it in the equatin

∴ y = x² - 4x - 5

∵ a = 1 and b = -4

→ Substitute them in the rule of h above t find it

∵ h = \frac{-(-4)}{2(1)} = \frac{4}{2}

∴ h = 2

→ To find k, substitute x by 2 and y by k

∵ k = (2)² - 4(2) - 5

∴ k = 4 - 8 - 5

∴ k = -9

∴ The cordinates of the turning point are (2, -9)

6 0
3 years ago
The answer to the question in the picture
wolverine [178]
Add them all up to get it
7 0
3 years ago
A bag of 15 apples was shared among five boys equally.How many apples did each boy get
andreyandreev [35.5K]

Answer:

3 apples

Step-by-step explanation:

15 / 5 = 3

3 0
2 years ago
Read 2 more answers
Other questions:
  • What is the measure of ∠A and ∠C?
    7·2 answers
  • Stephanie took a science exam that had two parts. Part 1: She got 16 questions correct, which was 45 of the number of part 1 que
    7·1 answer
  • Simplify the complex number i^39 as much as possible.
    5·1 answer
  • A solider is parachute training. He jumps out of a plane high enough that the pilot determines the solider will land somewhere i
    13·1 answer
  • A bakery ordered 9.91 pounds of brown sugar. The next week, the bakery used 7.39 pounds of it baking cakes. How much brown sugar
    10·2 answers
  • 4/7:3/8=….………………………………………………………………………………..
    6·1 answer
  • Covert 1/4 to a decimal
    9·2 answers
  • Which of the following is true about similar figures?
    13·2 answers
  • Mark is six years older than his brother Sam. The sum of their ages is 30. Let 'a' be Sam's age.
    14·1 answer
  • Whats the answer to -6(12p - 8n) in distributive Property?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!