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
alukav5142 [94]
3 years ago
13

Solve the equation for a. K = 4a+9ab

Mathematics
2 answers:
Elanso [62]3 years ago
8 0
So try to isolate a by division and such
K=4a+9ab
we use reverse dstributive which is ab+ac=a(b+c) so
undistribute a
4a+9ab=a(4+9b)
k=a(4+9b)
divide both sides by (4+9b)
\frac{k}{4+9b}=a
a=\frac{k}{4+9b}
boyakko [2]3 years ago
4 0
K=9ab+4a
A=k/9b+4
B=-4/9 + k/9a
You might be interested in
Andrew gives a cashier $40 to buy 3 T-shirts that cost $n each. Which algebraic expression
kumpel [21]

Answer:

1. B (40- 3n)

2.c (86)

Step-by-step explanation:

1. The shirts cost 3n. So you do 40- 3n(what the shirts cost) to find the amount of change he will recive.

2. Just plug the numbers in- 1.8(30) + 32=86.

8 0
3 years ago
Read 2 more answers
A machine produces defective parts with three different probabilities depending on its state of repair. If the machine is in goo
Zina [86]

Answer:

Step-by-step explanation:

Given that a machine produces defective parts with three different probabilities depending on its state of repair.

condition             Good order         Wearing down               Needs main   Total

Prob                       0.8                            0.1                                   0.1              1

Defective               0.02                          0.1                                   0.3

Joint prob              0.016                         0.01                                0.03        0.056

a) 0.016

b) total = 0.056

c) If not defective from needs maintenance

Prob for not defective = 0.8*0.98+0.1*0.9+0.1*0.7\\=0.784+0.09+0.07\\=0.944

From machine that needs maintenance = 0.07

So reqd prob = \frac{0.07}{0.944} \\=0.0741

6 0
4 years ago
mason wants to play with maliyah's doll house but first he needs to stop at the clubhouse. if all three stops are in the shape o
svlad2 [7]
To check if distances can be a triangle add the smaller two distances together. If the sum is larger (not equal to) than the longest distance then it is a possible side. For example, 2,2,4 or 1,2,5cannot be a triangle, 2,3, 4 can be a triangle because 2+3 is greater than 4.
7 0
4 years ago
Read 2 more answers
What is the common point between lines y = ½ x + 4 and y = x – 4?
nirvana33 [79]
1/2X+4=X-4
1/2X+8=X
8=1/2X
16=X

(Pick one of the equations )
y=1/2X+4
y=(1/2)(16)+4
y=12

point: (16,12)
7 0
3 years ago
The function c=2.50(n-2)+1.50 represents the cost c in dollars of printing n invitations. Which of the following is not true?
Yuri [45]
Please put the selections. I can't tell you what isn't true if you don't.
6 0
3 years ago
Other questions:
  • Joyce makes bead bracelets and necklaces and sells them to a store. She charges $5.00 for a bracelet, and $8.00 for a necklace.
    13·1 answer
  • Debra can run 20.5 miles in 2.5 hours how many miles per hour can she run math problems
    9·1 answer
  • Please Help !!! Thank You
    15·2 answers
  • two families bought tickets for a game. one family paid $71 for 6 adults and 2 children. another family paid $56.50 for 4 childr
    15·1 answer
  • You are making small pizzas. You have 12 cups of flour. Each pizza crust requires 3/4 cup of flour. How many pizza crusts can yo
    7·2 answers
  • A chemical company makes two brands of antifreeze. The first brand is 55 % pure antifreeze, and the second brand is 80 % pure an
    7·1 answer
  • A restaurant manager wants to purchase 200 sets of dishes. one design costs ​$15 per​ set, while another costs ​$55 per set. if
    13·1 answer
  • A group of 45 students went trip to the zoo. Each student paid $11.50 admission to the zoo. How much in all did the student pay
    14·2 answers
  • Hannah Borjas
    11·1 answer
  • Please help this is due TODAY
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!