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
SashulF [63]
3 years ago
9

3(1−9a)+22a=2(2a−9)−15 i need a step by step explanation please

Mathematics
2 answers:
SpyIntel [72]3 years ago
5 0

Answer:a=4

Step-by-step explanation:

Expand the brackets. Collect like terms. Get the same values on each side so it’s easier to isolate a. Divide 9 from 9a so that u get a by itself and this gives u the answer if 36/9 or 4.

motikmotik3 years ago
3 0

Answer:

a = 4  

Step-by-step explanation:

first distrubute the 3 and then 2 in the equations to whatever is inside the parantheses:

3 ( 1-9a) + 22a = 2(2a-9) -15

3 - 27a + 22a = 4a - 18 - 15

then combine the terms:

3 - 5a = 4a -33

then isolate the variables and constants to one side, for example move the 5a to the right side of the equation and move the 33 to the left side of the equaiton and then simplfy

36 = 9a

divide both sides by 9

a = 4  

You might be interested in
Write the equation of the line that passes through the points (-6,1) and (-2,5). Put your answer in fully reduced point-slope fo
irinina [24]
  • (-6,1)
  • (-2,5)

Slope:-

\\ \sf\longmapsto m=\dfrac{5-1}{-2+6}=\dfrac{4}{4}=1

Point-Slope form

\\ \sf\longmapsto y-y_1=m(x-x_1)

\\ \sf\longmapsto y-1=1(x+6)

\\ \sf\longmapsto y-1=x+6

\\ \sf\longmapsto x-y+7=0

3 0
2 years ago
Two less than 3/2 of a number (x) is more than 5 1/2
djverab [1.8K]
<h2>Answer:   (3/2)x - 2</h2>

Step-by-step explanation:

Let the number be x.

"Two less than 3/2 of a number (x)"   means    (3/2)x - 2

"is no more than"  means     "≤"

  5 1/2

* Hopefully this helps:) Mark me the brainliest:)!!!

4 0
3 years ago
Find the radius or diameter of each circle with the given dimensions. d=18 in.
Dovator [93]

Answer

If d equals diameter the radius is 9

Step-by-step explanation:

5 0
2 years ago
Question 3 please NO spam math grade 7
pychu [463]

Answer: The answer is A and D

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
NEED HELP!!!!!<br> Heres the question
Semenov [28]

Answer:

A. 5(-20)

Step-by-step explanation:

Since she repeatedly withdrawals money, the answer would be negative, so you can say that the other answers are definitely wrong.

Hope this helps :)

3 0
2 years ago
Other questions:
  • A model rocket is launched from the ground with an initial velocity of 120 feet per second. The height of an object h, in feet,
    13·2 answers
  • HELP!
    15·2 answers
  • What is 20/36 reduced
    12·2 answers
  • In a random sample of 380 cars driven at low altitudes, 42 of them exceeded a standard of 10 grams of particulate pollution per
    11·1 answer
  • A bottle contains 2 green gum balls, 2 red gum balls and 1 blue gum ball. What is the probability of choosing a random gum ball
    9·1 answer
  • Ivan made a scaled copy of the following triangle. He used a scale factor less than 1
    8·2 answers
  • Plz someone help ASAP! thanks​
    12·1 answer
  • PLZ HELP ME DUE RIGHT NOW
    13·1 answer
  • ✼ <img src="https://tex.z-dn.net/?f=Hello." id="TexFormula1" title="Hello." alt="Hello." align="absmiddle" class="latex-formula"
    6·2 answers
  • Identify quadrilateral ​
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!