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
devlian [24]
3 years ago
8

Given that R=9x+8y find x when y=8 and R=4

Mathematics
2 answers:
Ilya [14]3 years ago
8 0

Answer:

Step-by-step explanation:

R = 9x + 8y

4 = 9x + 8*8

4 = 9x + 64

Subtract 64 from both sides

4 - 64 = 9x + 64 - 64

-60 = 9x

Divide both sides by 9

-60/9 = 9x/9

-20/3 = x

x = -6 2/3

mojhsa [17]3 years ago
6 0

Answer:

-\frac{20}{3}

Step-by-step explanation:

R=9x+8y

y=8 and R=4

4= 9x + 8.8

4 = 9x + 64

4 - 64 = 9x

-60 = 9x

-60 / 9 = x

-20/3 = x

Hope this helps ^-^

You might be interested in
A die is tossed. find the odds against rolling a number greater than 2.
alex41 [277]
Umm what do you mean can you explain more of it 2 me plz<span />
3 0
3 years ago
Systems of equations, help please?
lord [1]
4x + 3y = 54 (1)
3x + 9y = 108 (2)

Multiply (1) by (-3)
-12x - 9y = -162 
3x + 9y = 108
---------------------add
-9x  =  -54
   x = 6

plug x = 6 into (1) to find y
4(6) + 3y = 54
24 + 3y = 54
3y = 30
  y = 10

Answer
(6 , 10)

Hope it helps.
3 0
3 years ago
Which expression is equivalent <br> to 5.7 × 5.7 × 5.7?
Burka [1]
The answer is C!!!!!!!!!!!
4 0
2 years ago
Read 2 more answers
If an experimenter conducts a t test for independent means and rejects the null hypothesis, the correct interpretation is that:
lisabon 2012 [21]

Answer:  C

Step-by-step explanation:

Rejecting the null hypothesis means we've found a significant difference in the means.  That means the probability that we'd see means so far apart by chance is less than our threshold of significance.

4 0
3 years ago
F(1) = 5
MatroZZZ [7]

Answer:

a(7)=3645

Step-by-step explanation:

you have :

f(1) =a= 5

and from recursive rule: f(n) = r · f(n − 1) and f(n) = 3 · f(n − 1)

So r=3

then

a(n)=a*r^(n-1)

a(7)=5*3^(7-1)

a(7)=5*3^6=3645

<em>hope this helps</em>

<em />

7 0
2 years ago
Other questions:
  • point q is located in ( -4 , 6) point r is located in ( 8,6) . what is the distance from pint q to point r
    11·1 answer
  • -5+9(r+8)<br> pls show me the work
    5·2 answers
  • A butterfly population is decreasing at a rate of 0.82% per year. There are currently about 100,000 butterflies in the populatio
    7·1 answer
  • Please help me idk this
    11·2 answers
  • Write a question that represents the following equation.<br><br><br><br><br> 5- n = 35
    7·2 answers
  • A sequence can be generated by using an=5an−1, where a1=2 and n is a whole number greater than 1.
    11·1 answer
  • Express sin 6x-sin 2x in product form.​
    7·1 answer
  • Suppose your friend's parents invest $15,000 in an account paying 5% compounded annually. What will the balance be after 6 years
    13·1 answer
  • Triangles XYZ and RST are similar. XY
    13·1 answer
  • What is the meaning of the f-value when h=139?
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!