1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
scoundrel [369]
3 years ago
13

Can anyone explain how to expand and simplify 3(2a+5) +5 (a-2)

Mathematics
2 answers:
german3 years ago
8 0
First of all you need to expand this expression. you do this by multiplying the number outside the brackets with each term inside the brackets. this is the first one ;   3 x 2a = 6a, 3 x 5 = 15. the extra + sign in the first brackets stays between the two terms, so the first set of brackets is now 6a + 15. now we have to look at the second ; 5 x a = 5a, 5 x 2 = 10, like the extra + sign, the extra - sign stays between the two terms as well, so the second bracket is now 5a-10. you put them together to get  6a + 15 + 5a - 10.

next you need to simplify the expression. first you need to group like terms,        e.g. the numbers and the letters.   <u>6a</u> + <em>15 </em><u>+5a</u> <em>-</em><em>10.</em> the 6a + 5a = <em><u>11a</u></em> and the 15 - 10 = <u><em>+</em></u><em><u>5</u></em>. you then put these two terms together to get your final answer of <em><u>
</u></em>

<u><em>11a + 5</em></u>


Step2247 [10]3 years ago
5 0
Take the first bracket and it's multiplication, 3(2a+5)
You expand my multiplying everything inside the bracket by the number outside.
3*2a = 6a
3*5 = 15
Then multiply out the second bracket, 5(a-2)
5*a = 5a
5*-2 = -10
So now you have 6a + 15 + 5a - 10
Simplify it by collecting like terms, and you have:
11a + 5
And that's the answer, hope I helped!
You might be interested in
Which number line represents the solution to the inequality (will make brainliest) pls help
erastovalidia [21]

Answer:

C

Step-by-step explanation:

because the solution dors not include -3 but everything less than.

6 0
2 years ago
What is true about the dilation?
IrinaK [193]
Dilation is scale factor, like a dilation scale factor of 2
8 0
3 years ago
John's current salary is 40000 per year.His annual pay raise is always a percent of his salary.What would his salary be if he re
ad-work [718]

Answer:

The salary after four consecutive increase = $ 46794.34

Step-by-step explanation:

According to question,

salary of MR. John = $ 40000 per year

percentage py increase = 4%

Let the salary after four consecutive pay increase = x

So, X = 40000 (1 +\frac{4}{100})^4

Or, X = 40000 (\frac{26}{25})^4

Or, X = 46794.34

Hence the salary increase after four consecutive pay increase at 4% = $46794.34  Answer

3 0
3 years ago
If you can help with any of these two or both that would be great ! :) <br> thanks
Vladimir [108]

Answer:

hmmm not sure

Step-by-step explanation:

try mulitply the numbers

7 0
3 years ago
I don't know what to write! Help me please​
Andrews [41]
Sorry, can not see the full picture, try uploading the full image of the question.
3 0
3 years ago
Other questions:
  • The stopping distance of a car is modeled by the function d = 0.05r(r + 2) where d is the stopping distance of the car measured
    6·1 answer
  • I NEED HELP IN MATH
    9·1 answer
  • What is the value of x when x + 7 = 21? <br> A) -28 <br> B) -14 <br> C) 3 <br> D) 14
    6·2 answers
  • 39 is 150% of what number?
    14·2 answers
  • Carla purchases 4 books for $10.Amy purchased 9 books.How much did Amy spend if her books cost the same as Karla's?
    8·1 answer
  • Find the quotient of 5 divided by7/8
    9·2 answers
  • Question is attached could i have help?
    14·1 answer
  • Find the area of the figure.
    12·2 answers
  • Otto used 6 cups of whole wheat flour and x cups of white flour in the recipe. What is the equation that can be used
    9·1 answer
  • What is the measure of angle B in degrees?
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!