Ok, so, I am looking up how to solve 4x + 8 = -7x + 19 and I scrolled down to my search engine's answer and it said x = 1. Ok, well, then I scrolled down a little further and clicked on a link and they showed you how to do it but the second website said x = -1. Which one is right? Please help, I really struggle with math a lot and now these two different answers are confusing me even more. If you can also explain why which of the two answers are correct that would be amazing! If you can't answer please comment! Thank you so so so much!!!
Answers
Answer:
x = 1
Step-by-step explanation:
4x + 8=-7x +19
add 7x to both sides
4x + 7x+8=-7x+7x +19
11x + 8=19
subtract 8 from both sides
11x + 8-8= 19-8
11x=11
x = 1
Answer: X=1
Step-by-step explanation:
Add 7x over to the 4x to get 11x. 11x+8=19 subtract 8 on both sides to get 11x=11. Divide and you get 1.
Related Questions
What is the answer? I need answers now?
Answers
Answer: 1/15
Step-by-step explanation:
75 divided by 5 is 15.
Answer:
1/15
Step-by-step explanation:
if you multipy 15 times 5 you get 75 hope this helps
Can some help me with this? It’s volume and I have to show work.
Answers
Answer:
330
Step-by-step explanation:
11*6=66
66*5=330
length x width x height
just multiply all the numbers together
PLEASE HELP ME... I AM BEHIND ON MATH HOMEWORK AND I REALLY NEED TO CATCH UP SO I DON'T GET MY PHONE TAKEN AWAY!!! I'LL MARK BRAINLIEST FOR BEST ANSWER!!
Solve the following system of equations. SHOWING ALL STEPS.
LaTeX: 5x-4y=-2
LaTeX: 2x+4y=16
*************************************
Use the LaTeX: \sqrt{x} button to show your math and steps. Also, a table might help you organize your work.
Answers
Answer:
im assuming you just need to answer this and not simplify it so ill just give you the answer
x = 4/5y+-2/5
−2y + 8
Step-by-step explanation:
Robin wants to buy a membership at a carwash this summer so that she can keep her car clean. She compared deals from Speedy Clean Carwash and Sudsy Bubbles Carwash to decide which membership to get. Robin arranged the information in the tables below.
How many times will Robin need to wash her car to spend the same amount at both carwashes?
P.S.: I attached the table below:)
Answers
Bob will spend at most $31 on gifts. So far, he has spent $18. What are the possible additional amounts he will spend? Use c for the additional amount (in dollars) Bob will spend. Write vour answer as an inequality solved for c.
Answers
Answer:
Step-by-step explanation:
31-18=13
C >31-18
C>13
Hope it helped
Solve the inequality c – 5 ≥ 0.5 and graph the solutions.
Answers
Answer:
c ≥ 5.5
Step-by-step explanatation:
c - 5 ≥ 0.5
*Add 5 to the left and the right of the inequality symbol*
Which leaves you with, c ≥ 5.5
In this case, the 'c' is unknown when graphing because you don't know if it can be called x or y. So, you cannot plot this variable.
A project will take a total of 720 person-days to complete. If the project must be completed in 30 days, how many people must be employed? PLEASE HURRY
Answers
Answer:
192 hours per day / 8 hours per person per day = 24 people
Step-by-step explanation:
Assuming each person works for 8 hours a day, the total number of hours needed to complete the project is:
720 person-days x 8 hours = 5,760 hours
To complete the project in 30 days, the total number of hours needed per day is:
5,760 hours / 30 days = 192 hours per day
The diameter of a circular cookie cake is 12 inches. How many square inches make up half of the cookie cake? Approximate using π = 3.14.
56.52 square inches
113.04 square inches
226.08 square inches
452.16 square inches
Answers
Hi
Hope you got help from this...
please mark brainliest
Answer:
56.52 square inches
Step-by-step explanation:
The diameter means half of the length of the radius.
the area of a circular lamina can be calculated by using the formula πr²
the half of the cake= πr²/2
= 3.14*6*6/2
= 1.57*36
= 56.52 square inches
Let V(x)=... please see file attached
Answers
Answer:
C
Step-by-step explanation:
in the future, plug the question into (link below) and select simplify.
math + way + dot + com
i have to write it like this b/c brainly doesn't like it when you put links :)
Brittany went grocery shopping , she spent 4/7 of her money on fresh foods. she spent 2/3 of the remainder of her money on frozen foods. if she spent 22$ on frozen foods. how much money did she spend on fresh foods?
Answers
Answer:
$44
Step-by-step explanation:
Let the total amount of money be represented by Y
Amount spent on fresh food =
\( \frac{4}{7} \times y\)
Remainder =
\(y - \frac{4}{7}y = \frac{3}{7} y\)
Amount spent on frozen foods = two-thirds of remainder = $22
\( = \frac{2}{3} \times \frac{3}{7} y = \frac{2}{7} y\)
\(\frac{2}{7} y = 22 \\ y = 22 \times \frac{7}{2} \\ y = 77\)
The total amount for grocery shopping is $77
Therefore, Brittany spent $44 on fresh foods
\( = \frac{4}{7} \times 77 \\ = 4 \times 11 \\ = 44\)
the parent’s height is 9 cm and the child’s height is 6 cm.
The child’s actual height is 1.3 m.
What is the actual height of the parent?
Answers
Answer:
1.95 m
Step-by-step explanation:
The ratio between the parent's height and the child's height stays the same.
Therefore, 9:6 = 1.5:1.
1.5:1 = x:1.3
Hence, after calculation, the parent's height is 1.95 m.
Please give Brainliest if you found this helpful!
Answer:
19.5
Step-by-step explanation:
A black ant travels 9/8 inches in 1/2 minutes. What is the ant's speed in inches per minute?
Answers
Answer:
Step-by-step explanation:
Step 1.) add: 9/8 + 9/8 = 18/8
step 2.) simpifly: 18/8 to 2.25 or 2 1/4
Your answer: 2.25 or 2 1/4 inches per minute
Pls help me in math, I need this tomorrow, thx :)
Answers
Answer: Range and mean = 8 of both
variance of Set X= 4.7
variance of Set Y= 4.6
Step-by-step explanation:
Two sets of data, set X and set Y are given
a.) Range is the difference of the highest value and the lowest value,
Therefore, Range of set X = 12-4=8
Range of set Y = 12-4=8
Now, Mean of a given data set is the average of all the terms present in the given data set
Mean of set X= Σxif/n = (4+5+6+7+16+18+24)/10 = 8
Mean of set Y= (4+5+7+32+20+12)/10= 8
Therefore, both the data sets has same range and mean.
b.) Standard deviation tells about the variability of the date and is given by,
S.D= σ = √∑ ( X − μ )^2/n
S.D of set X= √(16+9+4+1+0+1+16)/10= √4.7
S.D of set Y= √(16+9+1+0+4+16)/10= √4.6
Variance is the square of S.D, that is, σ^2
Therefore, variance of set X=4.6
variance of set Y= 4.7
c.) The calculated variances of set X and set Y are 4.7 and 4.6 respectively. It implies that the data is more distributed or varied in set X than in set Y. In the other words, data in set Y is more consistent data than of set X.
To learn more about S.D and variance,
https://brainly.com/question/15858152
https://brainly.com/question/12402189
Answer: Range and mean = 8 of both
variance of Set X= 4.7
variance of Set Y= 4.6
Step-by-step explanation:
We know
a.) Range is the difference of the highest value and the lowest value,
Therefore, Range of set X = 12-4=8
Range of set Y = 12-4=8
Now, Mean of a given data set is the average of all the terms present in the given data set
Mean of set X= Σxif/n = (4+5+6+7+16+18+24)/10 = 8
Mean of set Y= (4+5+7+32+20+12)/10= 8
also
b.) Standard deviation tells about the variability of the date and is given by,
S.D= σ = √∑ ( X − μ )^2/n
S.D of set X= √(16+9+4+1+0+1+16)/10= √4.7
S.D of set Y= √(16+9+1+0+4+16)/10= √4.6
Variance is the square of S.D, that is, σ^2
Therefore, variance of set X=4.6
variance of set Y= 4.7
c.) The calculated variances of set X and set Y are 4.7 and 4.6 respectively. It implies that the data is more distributed or varied in set X than in set Y. In the other words, data in set Y is more consistent data than of set X.
20 POINTSSSSSSSSSSSSSSSSSSSSSSSSSS
a data set with more variability has ___ than a data set with less variability
A. a smaller MAD
B. A larger MAD
C. a larger mean
d. a smaller mean
Answers
Answer:
B.
Step-by-step explanation:
a smaller variation leads to a bigger MAD i believe
Answer: Your answer is B
A Larger MAD.
Step-by-step explanation:
Hope it helps, Tell me if I'm wrong.
Mike sold half of his comic books and then bought 9 more. He now has 16. How many did he begin with?
Answers
Answer:14
Step-by-step explanation:
Answer:
Mike had 14 to begin with.
Step-by-step explanation:
16 - 9 = 7
7 x 2 = 14
14 / 2 = 7
9 + 7 = 16
help me with this.
Brianlest
7823/65^3+98(852)-63128
Answers
Ms. Sawyer is filling her bathtub. The bathtub fills at the rate of exactly 10.55 liters every minute. How much water is in the bathtub after 4 full minutes?
Answers
Determine which is the better buy.
9 straps for $10.25 or 30 straps for $66.00
Answers
Answer:
9 straps for $10.25
Step-by-step explanation:
Price rate
9 straps for $10.25 = 10.25/9 = $1.14 per strap30 straps for $66 = 66/30 = $2.20 per strapBetter buy
9 straps for $10.25Less cost per strapbetter buyAnswer:
9 straps
Step-by-step explanation:
If you're selling 30 straps for $66 then you get a 2.2 per each
But 9 straps for $10.25 will get 1.139
So, the value that's smaller which is 9 straps for $1.139 is a better buy
(REPLY FOR EXTRA POINTS) School hack:
If you have a question something like this: "Determine which integer makes the inequality 6(n − 5) < 3(n + 4) true."
The answer would most likely be the last answer choice.
This is because when teachers create the question they put it as the last one to make you work out all of the firsts ones first so you can do more work which means more practice.
I'm not 100% sure, but I had a question like this and the answer was the last one.
Hope this school hack helps!! :)
Answers
Answer:
Or you could just solve for n and pick the choice that matches what you got :)
Step-by-step explanation:
find a difference pwease :,D
Answers
Step-by-step explanation:
option A is correct answer
Answer:
\( \frac{5}{8} - ( - \frac{1}{4} ) \\ \frac{5}{8} + \frac{1}{4} \\ \frac{5 \times 1 + 1 \times 2}{8} \\ \frac{5 + 2}{8} \\ \frac{7}{8} \)
Which scenario can be modeled by the linear function
y = -15x + 500?
A. The temperature on Jupiter is
15℉ and increases by 500℉ every day.
B. There is a population of 500 giraffes in Western Africa that decreases by 15 giraffes each year.
C. A carpet cleaning service charges $500 plus an additional $15 for every hour.
D. A membership fee for a movie streaming service is free, but each rental costs $15.
Answers
What is the name of the figure?
A. A rectangular pyramid.
B. triangular prism
C. triangular pyramid
D. rectangular prism
E. rectangular pyramid
Answers
Answer:
It is a rectangular pyramid
Step-by-step explanation:
The base is a rectangle. I hope this helps :)
Answer:
D
Step-by-step explanation:
17/15 - 1/3 what is the answer
Answers
Pls Answer Correctly, What is this Math Problem? Pls don't spam...
Answers
226.4 ;)
Use PEMDAS.
hope this helpsdeddede
Step-by-step explanation:
2264 is the write answer
Find the volume of a prism. Show your work.
Answers
Answer:
Step-by-step explanation:
11 times 22
the area of its cross-section multiplied by the length
answer: 242cm squared
PLEASE HELP!!!!
Nelson is tired of bullying the kids at school and decides to start working 2 jobs.
He can work no more than 10 hours each week between the 2 jobs. House Cleaning pays $5 per hour and his sales job pays $8 per hour. He needs to earn at least $56 each week to pay his bills.
Write a system of inequalities that shows the various numbers of hours he can work at each job.
x = House cleaning
y = sales job
Answers
Answer:
5:8
10:16
you get the idea
PLLZZZ ANSWER
2.) There are three nickels, four dimes, and four quarters in your pocket. You randomly pick three coins and place them on a counter. The first coin is a nickel, the second is a dime, and the third is a quarter.
A..3/110,
b.8/165,
c. 1/64,
d.10/273
Answers
Answer:
B.
Step-by-step explanation:
Total coins = 11 ( 3 + 4 + 4 = 11).
The probability of picking a nickel first = 3/11 ( 4 nickels out of 11 total).
The probability of picking a dime second = 4/10 = 2/5 ( 3 dimes out of 10 coins left).
The probability of picking the third coin as a quarter = 4/9 ( 3 quarters out of 9 coins left).
The probability of picking all three in that order = 3/11 x 2/5 x 4/9 = 8/165
The two trapezoids in the graph below are similar. Which sequence of transformations proves that the trapezoids are similar?
A. A reflection across the x-axis followed by a rotation 90° counterclockwise about the origin
B. A reflection across the y-axis followed by a rotation 90° counterclockwise about the origin
C. A reflection across the y-axis followed by a rotation 180° counterclockwise about the origin
D. A reflection across the x-axis followed by a rotation 180° counterclockwise about the origin
Answers
Hopes this helps!! :')
Answer:
I think the answer is B
explain how to find the difference between 9^10/9^11 and 9^11/9^10
Answers
Answer:
jhv
Step-by-step explanation:
kjbb
Describe the pros and the cons of using the standard form of a line to graph an equation.
Answers
Answer:
The standard form of a line is expressed as Ax + By = C, where A, B, and C are constants and x and y represent the variables. One advantage of using the standard form to graph a line is that it is relatively easy to determine the slope and y-intercept of the line from the constants A and B. This can be particularly useful when trying to analyze the behavior of the line.
Another advantage of using the standard form is that it allows you to easily determine the equation of the line when given a set of points. For example, if you are given the points (2,4) and (3,6), you can use the standard form to find the equation of the line that passes through these points by substituting the coordinates into the form and solving for the constants.
One potential disadvantage of using the standard form is that it can be more difficult to interpret the meaning of the constants A, B, and C in terms of the context of the problem. For example, if the line represents the cost of a product, it may be more intuitive to express the equation in terms of the variables x (the number of units) and y (the cost). In this case, it may be more useful to use the slope-intercept form of the equation, which is expressed as y = mx + b, where m is the slope and b is the y-intercept.
Step-by-step explanation:
https://www.math.net/standard-form
Step-by-step explanation:
I honestly think that - ' jphhendell13 ' is correct.