3 years ago

2(15+3m)-7 Plz explain and answer

Mathematics

2 answers:

Alekssandra [29.7K]3 years ago

4 0

6m+23

You have to use distributive property, so 15x2=30 and 2x3m= 6m. You then subtract 30 from 7 and get 23.

Fiesta28 [93]3 years ago

4 0

6m+23

You have to use distributive property, so 15x2=30 and 2x3m= 6m. You then subtract 30 from 7 and get 23.

You might be interested in

Which expression represents the sum of 8 and twice a number?

vekshin1

Answer:

B. 8 + 2n

Step-by-step explanation:

Twice a number is 2n

Sum of 8 and twice a number is

8 + 2n

Correct choice is B.

7 0

3 years ago

–2.5 + (–3.5) Which number line shows the sum? (and i know its not -6)

Leto [7]

Answer:

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

The ratio of boys to girls in 6th grade is 3:5. If there are 39 boys, how many girls would there be?

Minchanka [31]

Answer:

there would be 65 girls

Step-by-step explanation:

Boys 39/3 =13

13x5=65

65 girls

3 0

3 years ago

Read 2 more answers

Please help I need to finish Alex before the school day ends, 30 points.

Mariana [72]

Answer:

308 m square

Step-by-step explanation:

divided the solid to two.

1. 4*5*7= 140

2. 7*4*6= 168

140+168=308

8 0

3 years ago

Read 2 more answers

What is the repulsive force between two pith balls that are 13.0 cm apart and have equal charges of −24.0 nC?

daser333 [38]

Answer:

The repulsive force is $3.067\times10^{-4}N$ .

Step-by-step explanation:

Consider the provided information.

The coulomb's law to calculate the repulsive force: $F=\frac{kQ_1Q_2}{r^2}$

Where the value of k is 9.00×10⁹ Nm²/C²

Substitute the respective values in the above formula.

$F=\frac{9\times10^9\frac{N\cdot m^2}{c^2} \times(-24\times10^{-9}C)^2}{[(13 cm)(\frac{1m}{100cm} )]^2}$

$F=\frac{9\times10^9\frac{N\cdot m^2}{c^2} \times(-24\times10^{-9}C)^2}{(0.13 m)^2}$

$F\approx0.0003067N$

$F=3.067\times10^{-4}N$

Hence, the repulsive force is $3.067\times10^{-4}N$ .

8 0

3 years ago