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oksian1 [2.3K]
3 years ago
13

Which is a correct first step in solving 5 – 2x < 8x – 3?

Mathematics
2 answers:
ElenaW [278]3 years ago
4 0

Answer:

C

Step-by-step explanation:

I would add 2x to both sides of the inequality:-

5 - 2x + 2x < 8x + 2x - 3

5 < 10x - 3

exis [7]3 years ago
3 0

5 < 6x - 3
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elect the correct answer from each drop-down menu. A system of linear equations is given by the tables. x y -5 10 -1 2 0 0 11 -2
sergeinik [125]

Answer:

First equation:  y = -2x

Second equation: y = 3 - x

Solution:  (1, -2)

Step-by-step explanation:

Assuming the ordered pairs of the tables are:

<u>Table 1</u>

(-5, 10)  (-1, 2)  (0, 0)  (11, -22)

<u>Table 2</u>

(-8, -11)  (-2, -5)  (1, -2)  (7, 4)

To create a linear equation, pick 2 ordered pairs. Calculate the slope by using the slope formula, then use the points-slope form of the linear equation to form the equation.

\textsf{slope }m=\dfrac{\textsf{change in }y}{\textsf{change in }x}

\textsf{point-slope form : }y-y_1=m(x-x_1)

<u>Equation 1</u>

\textsf{slope }m=\dfrac{2-10}{-1+5}=-2

y-0=-2(x-0)\\\\\implies y=-2x

<u>Equation 2</u>

\textsf{slope }m=\dfrac{-5+11}{-2+8}=1

y+11=1(x+8)\\\\\implies y=x-3

Solution to the System

Equate the equations and solve for x:

-2x = x - 3

⇒ 0 = 3x - 3

⇒ 3x = 3

⇒ x = 1

Substitute found value of x into one of the equations and solve for y:

y = 1 - 3 = -2

Therefore, the solution is (1, -2)

4 0
2 years ago
5. Keisha makes $ 135 selling items at a concession stand. She sold an equal number of T-shirts and keychains. The T-shirt costs
exis [7]

Answer:

$108

Step-by-step explanation:

Let n be the cost of a keychain, then the cost of a T-Shirt would be 4n. We can use this to set up an equation...

4n+n=135

Combine like terms

5n=135

Divide both sides by 5

n=27

Now we need to find how much she made from selling T-Shirts...

4n=4(27)=$108

8 0
2 years ago
Convert 237 into binary system​
Alex_Xolod [135]

Answer:

237 in binary is 0b11101101

7 0
3 years ago
Read 2 more answers
A shopkeeper has 2,625 markers. He would like to pack 25 markers in each box. How many boxes will he need?
Lerok [7]

Answer:

it's 105 boxes.

Step-by-step explanation:

hope this helps! and sorry for the person just trying to get points.

5 0
3 years ago
Terrance is making a scale model of a
Tanya [424]

Answer:

6.4 inches

Step-by-step explanation:

We are going to have to use ratio's here. We know that 1 inch = 2.5 feet and we know that Terrance is making a scale model of a  car that is 16 feet long. We need to work out the length of the car in inches so,

1 inches = 2.5 feet

? inches = 16 feet

→ We are going to divide 16 by 2.5 and then multiply that answer by 1 to get our result so

16 ÷ 2.5 = 6.4

6.4 × 1 = 6.4

The final answer is 6.4 inches

5 0
3 years ago
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