All categories

3 years ago

Question 3 (1 point)

Mathematics

2 answers:

dem82 [27]3 years ago

4 0

Answer:

D. 7

Step-by-step explanation:

(8+4) = 2(x-1) multiply (x-1) by 2

(8+4) = 2x-2 add 8 and 4

12 = 2x-2 add 2 on both sides

14 = 2x divide both sides by 2

7 = x

Whitepunk [10]3 years ago

3 0

Answer is D

12 = 2x - 2

14 = 2x

14/2 = x

7 = x

You might be interested in

Please solve with explanation

Juliette [100K]

Step-by-step explanation:

$4\frac{9}{20} - 1\frac{2}{6} =\\\frac{89}{20} - \frac{8}{6} = \frac{89 - 26.7}{20} = \frac{62.3}{20} \\$

$4\frac{6}{9} - 3\frac{3}{6} =\\\frac{42}{9} - \frac{21}{6} = \frac{252 - 189}{54} = \frac{63}{54} = 1\frac{9}{54}$

$2\frac{2}{4} - 1\frac{1}{3} =\\\frac{10}{4} - \frac{4}{3} = \frac{30 - 16}{12} = \frac{14}{12} = 1\frac{2}{12}$

8 0

4 years ago

Read 2 more answers

Which expression is equivalent to this one?

Alinara [238K]

Hello,

Which expression is equivalent to this one?

1/6(x - 18)

Distributive property: (1/6x) - (1/6 x 18)

= 1/6x

= -18

Answer: 1/6x * (-18)

4 0

3 years ago

Juan has a smartphone data plan that costs $50 per month that includes 6GB of data, but will charge an extra $40 per GB over the

andrew11 [14]

Answer:

(50+40x) dollars

Step-by-step explanation:

THe fixed cost is $50 (this includes everything and 6GB of data).

Now, for every GB <em>OVER</em> 6 GB he uses, company charges $40 extra.

So, if he used "x" GB EXTRA, his EXTRA cost will be 40 * x = 40x

Thus, his total cost in the month would be fixed cost PLUS the extra, which would be

50 + 40x dollars

3 0

3 years ago

Enter the value of n so the expression (-6y+1)+(4.7y-3.1) is equivalent to (ny-2.1)

Greeley [361]

If im correct, n= -1.3

7 0

2 years ago

Fiona is drawing polygons on a computer. She wants to map a regular 9-sided polygon back onto itself using a reflection. Which s

tiny-mole [99]

It would be d because she is choosing a line of reflection so she would us a parallel line to line it up to the side of the polygon

3 0

3 years ago