3 years ago

Mary multiplied a number by -3. When she added the result to 6, she got 12. What is her number?

Mathematics

1 answer:

ipn [44]3 years ago

5 0

X×-3+6=12, -3×=12-6, -3x=6 |÷-3, x=-2

You might be interested in

Monique Montez earns a 3.5 percent commission on all sales. She also receives a $500 bonus if her commission exceeds $4,000. Her

katen-ka-za [31]

Answer:

Her total pay is 2,887.50 since she did not make over 4000$ she will not receive the extra 500$ bonus

Step-by-step explanation:

82,500 X 3.5% = 2,887.50

5 0

3 years ago

What is the equation of 21 less than 11 times a number results in seven times a number decreased by 29 what is the number

zlopas [31]

Answer:

x=-2

Step-by-step explanation:

11x-21=7x-29

11x-7x=-29+21

4x=-8

x=-2

4 0

3 years ago

What equation shows that 9 is a factor of 72

lana [24]

Answer:

9 x 8 = 72

This equation shows that 9 is a factor of 72 because 9 times something is 72 in this equation. Hope it helps!

8 0

3 years ago

Read 2 more answers

Least common multiple of 8 and 12

umka21 [38]

I believe the answer is 4
hopee this helped u

3 0

3 years ago

Read 2 more answers

Determine the greatest common factor of 15xy^7z and 30x^2y^7z

yawa3891 [41]

Answer:

$15x {y}^{7} z$

Step-by-step explanation:

<h3>Factorize the Expressions</h3>

$15x {y}^{2} z = 3 \times 5 \times x \times y \times y \times y \times y \times y \times y \times y \times z$

$30 {x}^{2} {y}^{7} z = 2 \times 3 \times 5 \times x \times x \times y \times y \times y \times y \times y \times y \times y \times z$

<h3>Factor out the Common Factors</h3>

$gcf = 3 \times 5 \times x \times y \times y \times y \times y \times y \times y \times y \times z$

<h3>Multiply the Common Factors</h3>

$3 \times 5 \times x \times y \times y \times y \times y \times y \times y \times y \times z = 15x {y}^{7} z$

The Factored expressions are

$15x {y}^{7} z$

And

$15x {y}^{7} (2x)$

5 0

4 years ago