All categories

3 years ago

Is x = 7 a solution to the equation 3x - 4 = 15? No Yes

Mathematics

2 answers:

Elis [28]3 years ago

8 0

Answer:

No, because 3 x 7 = 21 - 4 = 17

Step-by-step explanation:

blondinia [14]3 years ago

8 0

Answer:

Step-by-step explanation:

To determine if x = 7 is a solution.

Substitute x = 7 into the equation and if left side equals right side then it is a solution

3(7) - 4 = 21 - 4 = 17 ≠ 15

Then x = 7 is not a solution to the equation

You might be interested in

Kyle divided his stamps

Marat540 [252]

Answer:

Step-by-step explanation:

Each page has 6 stamps. There are 3 pages. This is a simple multiplication problem, and so you do 3x6 to find the total number of stamps Kyle has. Thus, 3 times 6 is 18.

visual:

Page One: 6 stamps

Page Two: 6 stamps

Page Three: 6 stamps

6 + 6 + 6 = 18 (or just do 6x3)

6 0

3 years ago

which of the following is the correct set of hypotheses to test if the researchers are interested in evaluating whether there is

e-lub [12.9K]

Answer:

Step-by-step explanation:

check the attached document for answer

6 0

4 years ago

What is the decimal at the bottom of an element on the periodic table?

attashe74 [19]

Answer:

The atomic mass

Step-by-step explanation:

The decimal at the bottom of an element represents how much one atom of that element weighs.

5 0

3 years ago

Read 2 more answers

Which expression is equal to 3x-(2x+4)+5 a. x+9 b. x+1 c. 5x+9 d. 5x+1

Vitek1552 [10]

Answer:

b. x+1..........................

3 0

3 years ago

Greenfield village is spread across 240 acres of land. Only 37% of the land is used for the exhibits, while the rest of the land

Sergeeva-Olga [200]

Answer:

The land which are used for exhibits are 89 acres (approximately).

Step-by-step explanation:

Given:

Village is spread across 240 acres of land. 37% of land is used for the exhibits.

Now, we have to find acres of land which are used for exhibits.

So, here it is given that land used for exhibits is 37%, and we have to calculate the quantity from the percentage given:

According to question:

37% of 240 acres of land.

$\frac{37}{100}\times 240$

$0.37\times 240$

$88.80$

So, the land used for exhibits are 88.80 acres.

Therefore, the land which are used for exhibits are 89 acres (approximately).

5 0

4 years ago