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Liula [17]
2 years ago
5

Evaluate 2x-5x+ 12 when x = -2

Mathematics
2 answers:
vodka [1.7K]2 years ago
7 0

Answer:

2(-2)-5(-2)+12

-4-(-10)+12

6+12

18

Step-by-step explanation:

wel2 years ago
7 0

Answer:

18

Step-by-step explanation:

2(-2)-5(-2)+12

-4+10+12

=18

Hope this helps! ;-)

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In deductive thinking, you start with a given set of rules and
Andrews [41]

Answer:

True.

Step-by-step explanation:

Deductive reasoning does start off with a set of rules and conditions to determine what must be true as a result.

7 0
3 years ago
A book has 150 pages and you read 3 pages per day.after a certain number of days,there are 60 pages left.write an equation to sh
kotegsom [21]

3x+60=150 can be used to determine the number of days you read. Solving the equation determines that you have been reading for 30 days.

Step-by-step explanation:

Total pages = 150

Pages per days = 3

Pages left to read = 60

Let,

x be the number of days.

According to given statement;

Total pages = Pages per day*number of days + Pages left to read

150=3x+60\\150-60=3x\\90=3x\\3x=90\\

Dividing both sides by 3

\frac{3x}{3}=\frac{90}{3}\\x=30

3x+60=150 can be used to determine the number of days you read. Solving the equation determines that you have been reading for 30 days.

Keywords: linear expression, division

Learn more about linear expression at:

  • brainly.com/question/3306327
  • brainly.com/question/3375830

#LearnwithBrainly

7 0
3 years ago
Simplify the following expression: 7(2x+ 6y)​
Elza [17]

Answer:

7(2x+ 6y)​ = 14x + 42y

Step-by-step explanation:

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7 0
3 years ago
Parker was given this problem on his homework:−7(b+5).
RUDIKE [14]

Answer:

2/3 of the students in a class are girls. if there are 20 boys in the class. then the totoal number of girls isthe length of abhishek's notebook is 17cm and 8 mm. What will be its length in cm2/3 of the students in a class are girls. if there are 20 boys in the class. then the totoal number of girls isthe length of abhishek's notebook is 17cm and 8 mm. What will be its length in cm2/3 of the students in a class are girls. if there are 20 boys in the class. then the totoal number of girls is

7 0
3 years ago
What's the constant of y=2x+5
mestny [16]
5 would have to be the constant, because in algebraic terms, a constant is a term that contains only numbers and no variables, which would knock 2x right out of the question. Hope I helped.
6 0
4 years ago
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