please help me explain what his mistake was. If possible does anyone think they can explain it in a simplified way? Thank You for your help!
Answers
Answer:
Dont think eh multiplied both sides by 4. That would be the first step.
Step-by-step explanation:
1/4(x+12)=2
multiply both sides by 4
x+12=8
move the 8 to the right side of the equation and change its sign
x=8-12
calculate
x= -4
Answer:
He didn't multiply 1/4 between both terms in the brackets.
Step-by-step explanation:
1/4(x+12)=2
1/4x+3=2
1/4x= -1
x= -4
Hope that makes sense!
Related Questions
if m=6 and n=12 what is 2m+5
Answers
Answer:
17
Step-by-step explanation:
2m+5
2(6)+5
12+5
17
Answer:
2m+5
2(6)+5 ( if m=6, n=12 )
2×6+5
12+5
17
Step-by-step explanation:
Hope it is helpful.....
can someone help me really fast?
Answers
Use the following probability model to answer the question.
Event: For each adult resident in a city we ask how many
vehicles they own.
Number of Vehicles
Probability
0.04
0
1
0.41
0.38
0.13
UWN
0.03
0.01
Find the probability that an adult resident has 3 or more
vehicles. Give your answer as a number between 0 and 1.
Answers
Answer:
Step-by-step explanation:
Number of Vehicles Probability
0 0.04
1 0.41
2 0.38
3 0.13
4 0.03
5 0.01
X= 1
.13+.03+.01=0.17 (the amount with 3 or more cars)
0.17/1(Total amount of all probability)= 0.17 has 3 or more cars.
Probability is the chance of an event to occur from a total number of outcomes.
The formula for probability is given as:
Probability = Number of required events / Total number of outcomes.
The probability that an adult resident has 3 or more is 0.17
What is probability?
It is the chance of an event to occur from a total number of outcomes.
The formula for probability is given as:
Probability = Number of required events / Total number of outcomes.
We have,
The probability distribution of the number of vehicles is given as,
P(x) where x is the number of vehicles.
P(0) = 0.4
P(1) = 0.41
P(2) = 0.38
P(3) = 0.13
P(4) = 0.3
P(5) = 0.1
The probability that an adult resident has 3 or more.
= P(3) + P(4) + P(4)
= 0.13 + 0.03 + 0.01
= 0.17
Thus,
The probability that an adult resident has 3 or more is 0.17
Learn more about probability here:
https://brainly.com/question/14099682
#SPJ2
last year megan had 63 books in her collection now she has 112 books what is the percentage increase
Answers
Answer:
56.25%
Step-by-step explanation:
Divide
63/112 = .5625
Convert to a percentage
56.25%
Using pythagorean therom whats the answer ??
a2 + b2 = c2
Answers
C^2= (10)^2+ (9)^2
C^2=100 + 81
C^2=181
C= 13.4cm
Hope it helps!
Danielle poured 3/4 gallon of water from a 7/8 gallon bucket.How much water is left in the bucket?
Answers
Answer:
1/8
Step-by-step explanation:
3/4 = 6/8 after you multiply top and bottom by 2
Subtract 3/4 from 7/8 and we get
7/8 - 3/4 = 7/8 - 6/8 = (7-6)/8 = 1/8
There is 1/8 of a gallon left
Which of the following statements is NOT true about the graph of a system of equations with no solutions?
A. The lines will have the different slopes.
B. The lines will have different y-intercepts.
C. The lines will share none of the same points.
D. The lines will have the same slope.
Answers
Answer:
A
Step-by-step explanation:
A would be the best answer here because equations with no solutions would be parallel. That means they would have the same slope but with different y-intercepts. Since where the equations share points would be the solution, they cannot share points either.
Explain how to change 86% into an equivalent ratio written in simplest form
Answers
Answer:
I can't explain here since I can't write numbers.
Step-by-step explanation:
HELP WITH THESE 3 questions please !!! Please dont give me the wrong answers thanks I really need help
Answers
Answer:
We use similar triangles to get
16
15
25
brainliest pls
The two trapezoids are congruent. What is the value of x?
Answers
Answer:
x=15
Step-by-step explanation:
First person gets brainliest 4
45+9
Answers
Answer:
54
Step-by-step explanation:
Answer:
54
Step-by-step explanation:
At a part-time summer job, Luiz earn $10.10 per hour. Which equation can be used to find how many
hours he must work to earn $232.30?
A. 232.30x - 10.10
B. 10.10x - 232.30
C. 10.10+ x - 232.30
D. x - 10.10+232.30
Answers
Answer:
I would say it is B
Step-by-step explanation:
Because to find the value of x, you would need to divided 232.30 by 10.10, you have to use the opposite for algebra so the opposite is multiplication.
What equation is equal to 2y= 2x + 2?
Answers
Answer:
y = x+1
Step-by-step explanation:
2y = 2x+2 ( divide both sides of the equation with 2)
y = x + 1
Find 10.8% of 405. Round to the nearest tenth.
Answers
Steps:
405 * 10.8%
405 * 0.108 = 43.74
43.74 = 43.7
I WILL GIVE BRAINLIEST! PLEASE HURRY
Answers
Answer:
it's the thrid one as 30% is correct
Answer:
More than 30% of the students surveyed chose Red as their favorite color
Step-by-step explanation:
Which table represents a quadratic function?
Answers
Answer:
Step-by-step explanation:
the bottom one forms a straight line.. so not that one
but the top one looks more like a cubic function .. maybe it could be a quadratic.
Could you give me the reason please ?ASAP thank you.
Answers
The four tables below show relationships in which the x values represent inputs and the y values represent the corresponding
outputs.
R
s
T
y
re
y
y
3
-2
-5
-2
3
4
1
3
2
4
1
3
4
5
3
-3
3
7
3
3
3
4
S
3
4
10
5
3
4
-5
Which table represents a relationship that is not a function?
a e
b. R
c. S
d. T
Answers
Answer:
T
Step-by-step explanation:
Has more than one x for a given y.
What are indications of a computer hardware problem? Check all that apply.
The printer is printing in black and white.
The keyboard keys are getting stuck.
plz
The computer monitor is going blank.
The pointer of the mouse freezes.
The images on the monitor look sharp.
Answers
Step-by-step explanation:
the answer is the keyboard keys getting stuck, it's something you can touch and feel, thus it's an hardware problem
Answer:
The printer is printing in black and white
Step-by-step explanation:
What is the probability of spinning a green on the above spinner and rolling a 2 on a dice?
Answers
Answer:
Step-by-step explanation:
given klmn is a parallelogram ka-angle bisector
What are 5 other types of waves (besides visible light) that are found in electromagnetic spectrum.
Answers
Answer:
The other types of EM radiation that make up the electromagnetic spectrum are microwaves, infrared light, ultraviolet light, X-rays and gamma-rays.
Step-by-step explanation:
Internet.
Pleaseeeeeeeeeeeeeeeee help nowwwwwwwwwwwwwww
Answers
what is the value of x?
Answers
Answer:
can be anything
Step-by-step explanation:
there's no context
Answer:
The letter "x" is oftenly used in algebra to mean the value that not shown yet it is even called a variable or sometimes even unknown in example x+5=10 , the 'x' is the variable.
I hope this will help u
look at image it will give you the qeustion
Answers
Answer:
B
Step-by-step explanation:
I would think be because it's the only one that crosses the rest don't
Are the expressions
5
(
x
+
2
)
+
10
and
5
x
+
12
equivalent, and why?
Answers
Answer:
Yes it is equivalent
Step-by-step explanation:
Simply 5(x+2)+10 and you will get 5x+12
If 4(x – 3) + x = –2x + 10, what is the value of x?
Answers
Answer:
x=22/7
Step-by-step explanation:
4x-12+x=-2x+10
5x-12=-2x+10
5x=-2x+10+12
5x=-2x+22
5x+2x=22
7x=22
x=22/7
Here are 7 numbers.
3.51
3
.
1.1
4.
4.5
2.5
2.81
Calculate the mean of these 7 numbers.
Answers
Answer:
3.06
I hope this helps you :)
Charlie and Violet met for lunch at a restaurant between their two locations (exactly in the middle). It took
Charlie 2.6 hours to get there, but it only took Violet two hours because she was driving 15 mph faster than
Charlie. The distance between the two of them initially was 260 miles. Find the speed of the two drivers.
Charlie
Violet
mph
mph
Answers
Answer:
Charlie 55 miles per hour
Violet 65 miles per hour
Step-by-step explanation:
Charlie and Violet met for lunch at a restaurant between Memphis and New Orleans. Since, Charlie left Memphis and drove towards New Orleans, and Violet left New Orleans and drove towards Memphis, the total distance that they covered altogether is the total distance between Memphis and New Orleans.
It is given that the distance between Memphis and New Orleans is 394 miles. This means, the total distance both covered = 394 miles
Charlie drove for 4.8 hours and Violet drove for 2 hours. Let the speed of Charlie be x miles per hour. Since, the speed of Violet was 10 miles per hour faster than Charlies, the speed of charlie was (x + 10) miles per hour
Since, distance = speed multiplied by time
Distance covered by Charlie = 4.8x
Distance covered by Violet = 2(x + 10)
Altogether they covered 394 miles,
So,
394 = Distance covered by Charlie + Distance covered by Violet
394 = 4.8x + 2(x + 10)
394 = 4.8x + 2x + 20
374 = 6.8x
x = 55
Since, x represents the speed of Charlie, the speed of charlie was 55 miles per hour and speed of Violet was 65 miles per hour
6 + 1.5x = -12 please answer
Answers
Answer:
-12
Step-by-step explanation:
6 + 1.5x = -12
1.5x = -18
x = -12
1.5x = -18
X = -12
How many cm of framing are needed to make a picture frame with outside measurements 40 cm and 25 cm
Answers
Answer:
For average sized artwork (about 11x14" to 30x20"), the common mat width is 2". If you artwork is smaller, you might consider a 1.75 or 1.5" mat.
Step-by-step explanation: