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
Anni [7]
3 years ago
7

6a-2(4a-5)=40How do I solve it​

Mathematics
1 answer:
Elza [17]3 years ago
8 0

Answer:

Distribute, then combine like terms, subtract 10 from both sides of the equation, simplify, divide both sides of the equation by the same term, and simplify to get your solution.

Step-by-step explanation:

1.) Distribute

6−2(4−5)=40

6−8+10=40

2.) Combine like terms

6a-8a+10=40

-2a+10=40

3.) Subtract 10 from both sides of the equation

-2a+10=40

-2a+10-10=40-10

4.) Simplify

subtract the numbers

-2a+10-10=40-10

-2a=40-10

subtract the numbers

-2a=40-10

-2a=30

-2a=30

5.) Divide both sides of the equation by the same term

-2a=30

\frac{-2a}{-2} =\frac{30}{-2}

6.) Simplify

cancel terms that are in both the numerator or denominator

\frac{-2a}{-2} =\frac{30}{-2}

a=\frac{30}{-2}

Divide the numbers

a=\frac{30}{-2}

a=-15

a=-15

7.) Solution

a=-15

You might be interested in
Q2) for both of the following, calculate A5 and A100.<br> (i) An= 6n-3
dlinn [17]

Answer:

27 and 597

Step-by-step explanation:

To evaluate A5 and A100, substitute n = 5, n = 100 into An , that is

A5 = 6(5) - 3 = 30 - 3 = 27

A100 = 6(100) - 3 = 600 - 3 = 597

4 0
2 years ago
Read 2 more answers
How many significant figures are in each of the following measurements? A. 0.4004 mL. B. 6000 g. C. 1,000 30 km. &amp; D. 400. m
OLga [1]
The rules of significant figures are: 1. all non zeros are significant. 2. trailing zeros are significant. 3. zeros between non-zeros are signifincant. Hence, applying these to the given. 
A. 4 sig figs
B. 1 sig fig
C.6 sig figs
D.1 sig fig
6 0
3 years ago
A computer program consists of two blocks written independently by two different programmers.the first block has an error with p
lesya692 [45]
To work out the probability of both errors occuring, simply multiply the probability of the first error by the probability of the second error. Therefore the probability of both errors occurring is 0.2 * 0.3  =  0.06.
3 0
3 years ago
Read 2 more answers
8. which of the following ordered pairs is a solution of the given system of linear equations
V125BC [204]

Answer:

Option D The solution of the system is the point (-3,5)

Step-by-step explanation:

we have

x+y=2 -----> equation A

y=-2x-1 ------> equation B

Solve the system by substitution

Substitute the equation B in equation A and solve for x

x+(-2x-1)=2

-x-1=2

x=-2-1

x=-3

Find the value of y

y=-2x-1

y=-2(-3)-1

y=5

therefore

The solution of the system is the point (-3,5)

3 0
3 years ago
How many years does it take to earn a million dollars if you are paid $30 an hour and work 35 hours a week for 50 weeks a year
AnnyKZ [126]
This is a Multiple Step problem.Which means that you have to do a few steps before you get the answer.First,you do,30x35,then the answer,(product)to that,you multiply that answer to 50,then find out the answer to that,then divide 1 million by that answer,then you will get the year.
6 0
3 years ago
Other questions:
  • Please help me !!!!!!!!
    12·1 answer
  • Given the coordinates S(-3,6) and T(4, -8). Find the equation of the line that passes through the two points and write the equat
    15·1 answer
  • Please help I’ve got the answer just not sure if it’s 11.9 or 12
    10·1 answer
  • Thank you so much!!!
    8·1 answer
  • Solve for a!!! please help. i'll give brainiest
    9·1 answer
  • Find the equation of the linear function represented by the table below in slope-
    12·1 answer
  • Aladder that has a length of 13 m leans against a wall with the base of the ladder 5 m away from the bottom of the wall
    9·1 answer
  • A trellis consists of overlapping wooden slats.
    5·1 answer
  • New session is here
    12·1 answer
  • Could the solutions of a system of inequalities be a rectangular region? If so, give an example.
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!