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
yuradex [85]
2 years ago
8

19. 9a2b = c + 4a, for a

Mathematics
1 answer:
xenn [34]2 years ago
5 0

Answer:x/5 + 2b/5

Step-by-step explanation:

9a-2b=c+4a solve for a

9a-2b=c+4a

add -4a to both sides

9a-4a-2b=x+4a-4a

5a-2b=x

add 2b to both sides

5a-2b+2b=x+2b

5a= x+2b

divide by 5

5a/5 = x/5 +2b/5

a= x/5 + 2b/5

You might be interested in
How do you solve this problem<br><br>35/8y+1491-2y
o-na [289]

Answer:

I suggest using the website called Cymath https://www.cymath.com/

it allows u to type in problems like this and shows you how to do it

Hope this helped!! Have a good day c;

Step-by-step explanation:


6 0
3 years ago
Read 2 more answers
The number of students in a chess club decreased from 28 to 11. What is the percent decrease? Round your answer to the nearest p
atroni [7]

Answer:

28-11=17

28=100%

17=x

17×100/28=60,71

rounded 61%

60,71%

11/28*100=a

a-100=60,71

to nearest percent 61 i think

8 0
2 years ago
My homework lesson 2 order of operations
djyliett [7]
Not sure what your question is but if you are learning the order of operations you can use the phrase "Please Excuse My Dear Aunt Sally"....

Parentheses
Exponents
Multiplication from left to right
Division from left to right
Addition from left to right
Subtraction from left to right

Hope this help :)
3 0
3 years ago
A train from Portland, Oregon, to Los Angeles, California, travels at an average speed of 60 miles per hour and covers a distanc
seropon [69]

Answer:

The train need to leave Portland at 03:27 am

Step-by-step explanation:

step 1

Find out how long it takes the train to travel from Portland, Oregon, to Los Angeles, California

Remember that

The speed is equal to divide the distance by the time

so

The time is equal to divide the distance by the speed

Let

s ---> the speed in miles per hour

d ---> the distance in miles

t ---> the time in hours

t=\frac{d}{s}

we have

d=963\ mi

s=60\ mi/h

substitute

t=\frac{963}{60}=16.05\ hours

step 2

Adds 30 minutes (time it takes to get from the train station to her aunt's house)

Remember that

30\ minutes=0.50\ hours

16.05+0.50=16.55\ hours

Convert to minutes

16.55\ h=16.55(60)\ min=993\ min

step 3

Remember that

8 p.m=20:00\ hrs

Convert to minutes

20(60)=1,200\ min

Subtract 993 minutes from 1,200 minutes

1,200-993=207\ min

Convert to hours+minutes

207\ min=207/60=3.45\ hours

0.45\ h=0.45(60)=27\ min

so

3\ h+27\ min

00:00 + 03:27=03:27\ am

therefore

The train need to leave Portland at 03:27 am

8 0
3 years ago
What is the solution to the equation-3(h+5)+2 = 4(h+6)- 9?<br> h= 4<br> h= -2<br> h = 2<br> h = 4
ruslelena [56]
Expanding
-3h-15+2=4h+24-9
-3h-4h=24-9-2+15
-7h=28
h=4
8 0
2 years ago
Other questions:
  • Solve x/48 = 5/6 using two different strategies.
    15·1 answer
  • A jar contains five blue marbles and three red marbles. Suppose you choose a marble at​ random, and do not replace it. Then you
    10·1 answer
  • 4 divided by one half
    6·2 answers
  • Question
    9·1 answer
  • A city council is considering funding a proposal to create a new city park. The council members will fund the proposal if they c
    8·1 answer
  • What’s is the fractional value of a?
    13·1 answer
  • -2(x+3)=-2x-6 solve for x
    13·1 answer
  • The table shows the number of toys sold at Penelope's Toys and Games store in different years. Find the rate of change in the nu
    10·1 answer
  • A circular flower garden has a radius of 18 feet that has to be mulched. Each bag of mulch covers 24 square feet. How many bags
    8·1 answer
  • Which of the following is true about coral reefs?
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!