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Mariana [72]
2 years ago
13

The sum of a number 8 and twice the number X is 28

Mathematics
1 answer:
hichkok12 [17]2 years ago
3 0

<u><em>ANSWERS ARE AT THE BOTTOM</em></u>

<u><em></em></u>

<u><em>To solve this question, we need to write the questions algebraically. Let's look at the problem first: The sum of a number 8, and twice the number x is equal to 28.</em></u>

<u>Algebraic form:</u>

8 + 2x = 28

<u><em>Lets solve this!</em></u>

<u><em></em></u>

8 + 2x = 28            (Algebraic Form)

2x = 28 - 8             (Subtract 8 from both sides)

2x = 20                  (Divide by 2)

<u><em>x = 10</em></u>                     (Answer)

<u><em>ANSWER:</em></u>

<u><em></em></u>

<u><em>x = 10</em></u>

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8 0
3 years ago
Read 2 more answers
Part A: Eveline rented a car at $180 for 4 days. If she rents the same car for 9 days, she has to pay a total rent of $325. Writ
QveST [7]

Answer:


Step-by-step explanation:

Part A

We will use the slope intercept form of the line and then convert later.

Equation

y = mx + b is the general form

Givens

Two data points

(4,180)

(9,325)

Solution

325 = 9x + b

<u>180 = 4x + b</u>                Subtract

145 = 5x                      Divide by 5

145/5 = 5x/5               Do the division

29 = x                          This represents the cost / day

180 = 4x + b                 Substitute x = 29 to find b

180 = 4*29 + b             Combine

180 = 116 + b                Subtract 116 from both sides.

180 - 116 = b

64   = b

Solution for y = mx + b

y = 29x + 64

In Standard form this is

- 29x + y = 64 But the first number must be plus

29x - y = - 64 <<<< Answer A

Part B

y = 29x + 64

f(x) = 29x + 64

Part C

The graph is shown below. Various points are filled in using y = 29x + 64. The y intercept is (0,64) which is labeled. Let x = 1 , 2, 3, 4, ... 10 (which is arbitrary). This may be more easily done on a spreadsheet if you know how to use one to make graphs.


8 0
3 years ago
A rectangle has a height 3z and a width of 2x-3<br><br> Express the area of the entire rectangle.
viktelen [127]

Answer:

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Step-by-step explanation:

Area of a rectangle, a = height * width

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width, w = 2x - 3

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expand

a = 6xz - 9z

a = 3z(2x - 3)

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3 years ago
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zepelin [54]

Answer:

A.1/3

Step-by-step explanation:

on the picture

if it's helpful ❤❤❤

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Furkat [3]

Answer: A IS CORRECT

Step-by-step explanation:

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