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
il63 [147K]
2 years ago
15

Whats the answer to 3y+-4=9y-8

Mathematics
2 answers:
bija089 [108]2 years ago
8 0
 3y+-4=9y-8
-3y      -3y
¯¯¯¯¯¯¯¯¯¯
       -4=6y-8
      +8      +8
¯¯¯¯¯¯¯¯¯¯¯
         4=6y
       ¯¯¯¯¯¯
         6    6


y=2/3
y=0.667
yuradex [85]2 years ago
3 0
3y-3y+-4=9y-3y-8
-4=6y-8
-4+8=6y-8+8
4=6y
y=4/6
y=2/3 (66.6%)

You might be interested in
What is the volume of the box
Fofino [41]

Answer:

3/32 in^3

Step-by-step explanation:

volume = length * width * height

V=3/4 * 1/2 * 1/4

V= 3/32

3 0
3 years ago
Read 2 more answers
The 2 legs of a right triangle are 6' and 8' long what is the perimeter of the triangle
Vlad1618 [11]

Answer:24 feet

Step-by-step explanation:

8 0
2 years ago
A researcher wishes to estimate the number of households with two cars. How large a sample is needed in order to be 99% confiden
solmaris [256]

Answer:

Sample size n = 1382

so correct option is D) 1382

Step-by-step explanation:

given data

confidence level = 99 %

margin of error = 3%

probability = 25 %

to find out

How large a sample size needed

solution

we know here P = 25 %

so 1 - P = 1 - 0.25

1 - P  = 0.75

and we know E margin of error is 0.03 so value of Z for 99%

α = 1 - 99%   = 1 - 0.99

α  = 0.01

and  \frac{\alpha}{2} = \frac{0.01}{2}

\frac{\alpha}{2}  = 0.005

so Z is here

Z_(\frac{\alpha}{2}) = 2.576

so

sample size will be

Sample size n =  (\frac{(Z_(\frac{\alpha}{2})}{E})^2 * P * (1-P)

put here value

Sample size n = (\frac{2.576}{0.03})^2 * 0.25 * 0.75

Sample size n = 1382

so correct option is D) 1382

3 0
3 years ago
A cookie recipe states for every 3 cups of flour, 1.5 teaspoons of vanilla are
guapka [62]

Answer:

2.5 Teaspoons of vanilla are needed.

Step-by-step explanation:

If 3 cups of flour is 1.5 teaspoons of vanilla. 1.5 /3=.5 Meaning there is .5 teaspoons of vanilla per cup of flour.

If you have 5 cups of flour   5 x .5= 2.5 (teaspoons)

7 0
2 years ago
What is the range of f(x) = 3x + 9?
Lera25 [3.4K]
From the given options we can think that x is
in the exponent of 3.
So, the given function is actually f(x) = 3^x +9
Now, we need to find the range of given
function.
We can see that first term is and exponential
term 3^x and second term is 9
We know that 3^x will always be greater than
O.
Therefore, 3^x +9 would always be greater
than 9.
Therefore, range would be y>9.
So, the correct option is B) (y | y > 9}.
5 0
2 years ago
Other questions:
  • Scores on a dental anxiety scale range from 0​ (no anxiety) to 20​ (extreme anxiety). The scores are normally distributed with a
    14·1 answer
  • Nora traveled from Kansas City to Louisville, a distance of 520 mi, in 10 hr. Find her rate in miles per hour
    6·1 answer
  • True false test consists of 10 questions how many ways can a student mark one answer to each answer
    12·1 answer
  • Evaluate the factorial expression.<br> left parenthesis 6 minus 2 right parenthesis exclamation mark
    8·1 answer
  • The average of 4,-8,6,14,-3 is
    5·2 answers
  • What is the mixed number of 43/8
    8·2 answers
  • On tuesday, gavin jogged 5 km. on wednesday, he jogged 6.2 km, and on thursday he sprinted 50 m. how many meters did he travel i
    10·1 answer
  • In which step did the veterinarian make the first error?<br> Step 1<br> Step 2<br> Step 3<br> Step 4
    11·1 answer
  • 11. please help me outt ill mark you brainlist !
    5·1 answer
  • The radius of Circle L is 3m. The length and width of Rectangle M is 12m and 18m, respectively. If Point P will be randomly plac
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!