All categories

3 years ago

Kaya used these steps to solve the equation 7+2x=2(x−1)+4. Which choice describes the meaning of her result, 7=2?

Mathematics

1 answer:

leva [86]3 years ago

7 0

Answer:

the equation has no solution

Step-by-step explanation:

Given

7 + 2x = 2(x - 1) + 4 ← distribute and simplify the right side

7 + 2x = 2x - 2 + 4

7 + 2x = 2x + 2 ( subtract 2x from both sides )

7 = 2 ← not possible

This indicates that the equation has no solution

You might be interested in

A back-to-back stem-and-leaf plot showing the points scored be each player on two different basketball teams is shown below.

dangina [55]

answer for the question is C

6 0

3 years ago

Alonzo deposits 300 into an account that pays simple interest at a rate of 4% per year . How much interest will he be paid in th

uranmaximum [27]

Answer:

1200 was is interested in the first 4years

5 0

3 years ago

Solve for x. Show all your work

olasank [31]

42°

Step-by-step explanation:

$\angle BAE =180\degree -132\degree$

(Angles in linear pair)

$\angle BAE =48\degree$

$\angle AEB =90\degree..(\because \overrightarrow{EC}\perp\overrightarrow{ED})$

$\angle ABE = 180\degree-(48\degree+90\degree)$

(Angle sum postulate of a triangle)

$\implies\angle ABE = 180\degree-138\degree$

$\implies\angle ABE = 42\degree$

$\angle CDE =\angle ABE = 42\degree$

(corresponding angles)

$\implies x\degree=\angle CDE$

(vertical angles)

$\implies x\degree=42\degree$

$\implies x=42$

3 0

2 years ago

What number must you add to complete the square?

eimsori [14]

Answer:

Step-by-step explanation:

x^2 + 12 x = 40

To complete the square, take the coefficient of the x term

Divide by 2

12/2 = 6

Square it

6^2 = 36

Add 36 to each side

8 0

3 years ago

If ABC ~ DEF, What is the scale factor of ABC to DEF?

Murljashka [212]

Answer:

3/1

Step-by-step explanation:

Using the similarity statement, ∠A corresponds with ∠D; ∠B corresponds with ∠E; and ∠C corresponds with ∠F.

The only angle of triangle DEF we have is ∠E, which is 7. This corresponds with ∠B; this makes the scale factor of ABC to DEF

21/7 = 3/1.

3 0

3 years ago

Read 2 more answers