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3 years ago

Justify each step. 15. 2x – 5 = –20 2x = -15 x=_15

Mathematics

1 answer:

Dimas [21]3 years ago

5 0

1st: add 5 to each side
2nd: divide by 2 on each side

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Can anyone help me with this?

AleksandrR [38]

Answer:

B.16 mins start from home to school or school to home

Step-by-step explanation:

I. When bike is faster than walk 3 times

Jane is in the middle of way to school

if she walk mid point to school is 4 mins

then mid point to home is 4 * 3 = 12 mins

School + Home = Total Mins

4 + 12 = 16

More discuss, leave comment below.

8 0

3 years ago

Factor the polynomial 3x + 6 If the polynomial cannot be factored, write prime. Please place a space between each term in your a

rewona [7]

5x^2(3x-2)

5x^2 multipled 3x -5x^2 multipled -2

15x^2-10

4 0

3 years ago

Find the fraction of stundents enrolled in each language

blondinia [14]

Fraction of students enrolled in Chinese = $\frac{51}{126}$

Fraction of students enrolled in French = $\frac{33}{126}$

Fraction of students enrolled in Spanish = $\frac{42}{126}$

Solution:

Total number of students = 51 + 33 + 42

= 126

Number of students enrolled in Chinese = 51

Fraction of students enrolled in Chinese

$$=\frac{\text{Number of students enrolled in Chinese}}{\text{Total number of students}}$

$$=\frac{51}{126}$

Fraction of students enrolled in Chinese = $\frac{51}{126}$

Number of students enrolled in French = 33

Fraction of students enrolled in French

$$=\frac{\text{Number of students enrolled in French}}{\text{Total number of students}}$

$$=\frac{33}{126}$

Fraction of students enrolled in French = $\frac{33}{126}$

Number of students enrolled in Spanish = 42

Fraction of students enrolled in Spanish

$$=\frac{\text{Number of students enrolled in Spanish}}{\text{Total number of students}}$

$$=\frac{42}{126}$

Fraction of students enrolled in Spanish = $\frac{42}{126}$

7 0

3 years ago

What is the overall charge for neon,oxide, copper, and tin ?

Finger [1]

Answer:

Neon is stable, hence has no charge.

Oxide (O2-) has a charge of -2

Cooper (Cu2+) has a charge of +2

Tin (Sn2+) has a charge of +2

hence overall charge = -2+2+2

Overall charge = +2

6 0

2 years ago

Helppppppppppppppppppppppp

Crank

Answer:

0.13m

Step-by-step explanation:

1m = 100cm

0.13m = 13cm

3 0

2 years ago

Read 2 more answers