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
svlad2 [7]
3 years ago
9

3(4a+7)=5(2a+4)+1 What is it?

Mathematics
1 answer:
hichkok12 [17]3 years ago
7 0

Answer:

a = 0

Step-by-step explanation:

3(4a+7)=5(2a+4)+1     Distribute 3 through the parentheses

                 - >                         12a + 21 = 5(2a + 4) +1

5(2a + 4) +1   -->  10a + 20 + 1

12a + 21 = 10a + 20 + 1  -->    12a + 21 = 10a + 21   -->      12a = 10a

                                                     12a - 10a = 0   -->    2a = 0

Divide both sides of the equation by 2      -->     a = 0

You might be interested in
A restaurant adds a 20% tip to the bills of parties of 6 or more people. Suppose a server waits on five such tables. The bill
castortr0y [4]

Answer:

$218.70

Step-by-step explanation:

You need to first convert the percentage to the decimal.

20% = 0.2

Now, you need to find 20% of each bill by multiplying each bill by 0.2.

0.2(185.45) + 0.2(205.20) + 0.2(195.05) + 0.2(245.80) + 0.2(262.00)

Because of the distributive property, you can add up the bills and multiply the sum by 0.2.

0.2(185.45 + 205.20 + 195.05 + 245.80 + 262.00)

0.2(1093.50)

218.7

The waiter made $218.70 in tips.

4 0
3 years ago
need help asap need help asap need help asap need help asap need help asap need help asap need help asap need help asap need hel
romanna [79]

Answer:

yes? what do you need help with

Step-by-step explanation:

8 0
3 years ago
What should be added 0.7 to get 1​
sveticcg [70]

Answer:

0.3

Step-by-step explanation:

x is the number to be added to 0.7 to have a sum of 1.

0.7 + x = 1

x = 1 - 0.7

x = 0.3

5 0
3 years ago
Read 2 more answers
Can someone help me with this?
Oduvanchick [21]

Answer:

Equation

Step-by-step explanation:

Equation Rate of change: 2/1=2

Graph Rate of Change: -4/1=-4

8 0
3 years ago
Read 2 more answers
Quadrilateral ABCD is shown. If m angles?
artcher [175]

Answer: m∠BCE = 63°

              m∠BAD = 76°

Step-by-step explanation:

Problem 1:

Given

m∠BEC = 90°

m∠EBC = 27°

Total = 117°

Solution:

Subtract 180° - 117° = m∠BCE = 63°

Problem 2:

Given

m∠ADE = 52°

m∠ABE = 52°

Total = 104°

Solution:

Subtract 180° - 104° = m∠BAD = 76°

6 0
3 years ago
Other questions:
  • Graph the system of linear inequalities.
    12·1 answer
  • If 2x + 6 =4x-4 then x=
    10·1 answer
  • Systems -6=3x-6y, 4x=4+5y
    14·2 answers
  • Someone, please answer I´m in math and none of the classmates I know knows what to do. The value of a new car decreases by about
    10·1 answer
  • HELP ME PLEASE I'll give brainless.
    10·1 answer
  • Find the value of x to the nearest tenth<br> 34<br> 59°<br> х
    10·2 answers
  • Find the volume of the prism below.
    9·1 answer
  • Help please it’s urgent
    6·2 answers
  • Darrel has 200 cm2 of wrapping paper. Which object below can be wrapped with the least amount of paper left over?
    15·2 answers
  • 7th grade mathematics <br> help plz as soon as possible <br> Image is attached <br> 10 POINTS
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!