2 years ago

Which property of equality can be used to justify this step?

Mathematics

2 answers:

Aleonysh [2.5K]2 years ago

6 0

C. Addition property of Equality

podryga [215]2 years ago

4 0

C. Addition Property of Equality
because you are adding 10x to both sides

You might be interested in

Tell which number is greater. 11. 0.12, 1.2%

Tatiana [17]

0.12 because it equals to 12% where 1.2% equals to 0.012

4 0

2 years ago

Read 2 more answers

Find a polynomial of degree 3 with zeros of 4, 2i and -2i

andre [41]

$(x-4)(x-2i)(x+2i)=\\
(x-4)(x^2+4)=\\
x^3+4x-4x^2-16=\\
x^3-4x^2+4x-16$

7 0

3 years ago

Brianna and let kelci are raising money for a class field trip. Brianna has raised 3 times more money than kelci, but together t

ddd [48]

Let $x be the amount of money which Kelci has raised. Brianna has raised 3 times more money than kelci, then she has raised $3x. Totally both have aised $(x+3x)=$4x.

Since together they have raised more than $300, then 4x>300,

$x\ \textgreater \ \dfrac{300}{4}$ .
Answer: the inequality $x\ \textgreater \ \dfrac{300}{4}$ can be used to determine the amount of money kelci has raised

7 0

3 years ago

Derek says that the quotient of -2/7 divided by -2/21 is -1/3. Part A: What is the correct quotient? Part B: What mistake did De

Thepotemich [5.8K]

Answer:

The correct quotient is 3.

I think Derek has mistaken to divide $-\frac{2}{21}$ by $\frac{2}{7}$ .