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
frez [133]
3 years ago
8

Two numbers are w and 3w - 5. Their sum is 23. Solve the equation w + 3w -5 = 23 to find the numbers.

Mathematics
2 answers:
Alexxandr [17]3 years ago
7 0
4x-5=23
4x=28
x=7
w=7
3x-5=3(7)-5=21-5=24
andriy [413]3 years ago
3 0
W + 3w - 5 = 23 +5 +5 (-5 +5 cancels out and equals 0) Like terms. What you do to one side, you do to the other. 4w = 28 ---- --- 4 4 Isolate w by dividing by 4 W = 7
You might be interested in
I need help asap please!!!!
Brut [27]
So, the easiest thing to do here is to add up the numbers of each option to find the number most similar to the solution of (-4/5)(3/5)(-6/7)(5/6) which is approximately equal to 0.34.
The product of expression A is -0.25
The product of expression B is 0.50
The product of expression C is 3
The product of expression D is -0.05625

So, first of all, we can rule out choices A and D because they are both negative, whereas 0.34 is not. Now, we just have B and C, and clearly, B is much closer to 0.34 than C is, so B is the correct answer. I hope this helps! :)
3 0
3 years ago
• Machine s is cleaned every 12 weeks. •Machine that is cleaned every 8 weeks. What is the fewest number of weeks that will pass
vfiekz [6]
Week 24,assuming that both machines are cleaned at week 0, because multiples of 12 are 12, 24,36. And multiples of 8 are 8, 16, 24. 24 is also the LCM.
7 0
3 years ago
The weekly earnings of students in one age group are normally distributed with a standard deviation of 47 dollars. A researcher
ELEN [110]

Answer:

Option D) 340

Step-by-step explanation:

We are given the following in the question:

Alpha, α = 0.05

Population standard deviation, σ = $47

Margin of error = 5

95% Confidence Interval:

\mu \pm z_{critical}\frac{\sigma}{\sqrt{n}}

\text{Margin of error} = z_{critical}\frac{\sigma}{\sqrt{n}}

Putting the values, we get,

z_{critical}\text{ at}~\alpha_{0.05} = 1.96

5 = 1.96(\dfrac{47}{\sqrt{n}} )\\\\\sqrt{n} = \dfrac{47\times 1.96}{5}\\\\n = 339.443776\\\Rightarrow n \approx 340

Thus, the correct answer is

Option D) 340

7 0
3 years ago
Brainliest, but explain your answer for once? Thanks in advance, appreciate ya!
GenaCL600 [577]

Answer:

c. 1/6

Step-by-step explanation:

I hope it helps you...

4 0
2 years ago
Read 2 more answers
Given lines L1 and L2 and L1 = (1-a)x-y and L2= 6x+ay =9 find the value of a if L1 and L2 are parallel then L1 and L2 are perpen
sammy [17]

Answer:

am not sure pls double check

7 0
3 years ago
Read 2 more answers
Other questions:
  • Evaluate x0 + y0 for x = 3 and y = 2.
    6·2 answers
  • How to share four sandwiches with six people
    12·1 answer
  • Olaf has 250 files on an external hard drive. Of those files, 12% are photos.
    14·1 answer
  • 12 (5x-1) = 7x (2x +2)
    8·2 answers
  • At the store 6 pounds of bananas cost $1.95. Enter the amount of 18 bananas would cost.
    14·1 answer
  • Help.? please, i dont understand.
    5·2 answers
  • I keep struggling on this question can someone help me figure it out
    10·1 answer
  • Select all ratios equivalent to 7:2 ?
    11·1 answer
  • Which of the polygons can always be classified as a rhombus?
    5·2 answers
  • Can i get some help pls i don't know how to write this equation
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!