What does "solution" mean?
What does it mean for a point to be a solution to a linear
equation?
For example, if I say, " (2,5) is a solution to the
equation y = 2x + 3," how could you check my claim?
Answers
Answer:
A solution to a linear equation means that the ordered pair is a point that lies on that line.
If someone were to say (2,5) is a solution to the equation y= 2x+3, you could check them by plugging in 2 where the variable "x" and seeing if y =5.
In this case,
y= 2(2)+3
y=7
(2,5) is not a solution.
Related Questions
A new park was designed to contain two circular gardens. Garden A had a diameter 50 m, anf garden B has a diameter of 70 m. How much more edging will be needed for the larger garden than the smaller one?
Answers
Answer:
20pi
Step-by-step explanation:
C =2pi(r)
Ca = 2 (pi) (25) = 50 pi
Cb = 2 (pi) (35) = 70 pi
70pi - 50pi = 20pi
Help ASAP! And explain!
Answers
Answer: Choice A) Angle-Angle-Side
This abbreviates to AAS.
==========================================================
Explanation:
AC bisects angle DAB, which tells us that angle DAC and angle CAB are the same measure (in this case, each is 106/2 = 53 degrees).
Because angle DAC = angle CAB, this forms the second "A" of "AAS". The first "A" is due to angle ABC = angle ADC.
The "S" refers to AC = AC by the reflexive property.
"Angle-Angle-Side" shortens to "AAS". Be sure not to mix it up with ASA which is a similar theorem. In the case of AAS, the side is not between the angles mentioned. If we knew that AB = AD, then we could use ASA.
Please solve the question below 1
Answers
Answer:
A
Step-by-step explanation:
Find the mean:
Day 1: 2
Day 2: 1
Day 3: 4
Day 4: 5
Day 5: 0
Day 6: 7
Mean = [tex] \frac{2 + 1 + 4 + 5 + 0 + 7}{6} = 3.17 [/tex]
This does not exceed a daily mean of 3.5 hours which was set by her mom as a guideline.
Therefore we can conclude that:
"Chawrdi complied with the guideline because the mean number of hours played is [tex] \frac{2 + 1 + 4 + 5 + 0 + 7}{6} = 3.17 [/tex].
What is the answer? please help
Answers
Answer:
The answere is -8 i think
Step-by-step explanation:
Answer: The answer is c
Step-by-step explanation:
Give the slope of a line parallel to the given line.
Answers
Answer:
y=2x+ 4
Step-by-step explanation:
Same slopes and different y-intercept are parallel lines
Marcy ran 1 1/3 mile on Saturday. She ran 1.7 mile on Sunday. Which day did she run further?
Answers
Answer:
https://brainly.com/question/20948244
Step-by-step explanation me :
Mrs. Keyes found that 7
8
of the sixth graders that said
they enjoyed math had received high grades in math class.
What fraction of the sixth graders received high grades and
enjoyed math?
Answers
Answer: It is a trick question 78 kids did or how many total Sixth Graders is there that would help is there 100 in total or what?
Step-by-step explanation:
the acute angle of a right-angled triangle are in the radio of 3:7. find the angles
Answers
The right angle is 90 degrees.
The 3 inside angles are a total of 180 degrees.
The two acute angles would need to equal 180-90 = 90 degrees.
Using the ratio you have 3x + 7x = 90
Simplify to get 10x = 90
Divide both sides by 10 to get x = 9
Now you have the two angles:
Angle 1 = 3 x 9 = 27
Angle 2 = 7 x 9 = 63
ten men take 4 days to complete the task of training a road how many days would 8 man takes
Answers
Answer:
It will take 8 men 5 days
Elsie bought a video game for $85.00. If the store Charges 170% of what it
paid for the game, how much is the store's profit?
Answers
Answer:
$59.5
Step-by-step explanation:
170% means 170/100
To get 170% multiply 170/100 by 85.
14450/100 will be the fraction.
Simplified it is 144.5.
That is how much Elsie has to pay.
Subtract to find the profit.
144.5-85 is 59.5.
The value of the store's profit will be $35.
What is mean by Percentage?
A number or ratio that can be expressed as a fraction of 100 or a relative value indicating hundredth part of any quantity is called percentage.
Given that;
Elsie bought a video game for $85.00.
And, the store Charges 170% of what it paid for the game.
Now,
Since, Elsie bought a video game for $85.00.
And, the store Charges 170% of what it paid for the game.
So, We can formulate;
Let C be the cost of the game.
⇒ 170% of C = 85
⇒ 170/100 × C = 85
⇒ C = 85 × 100 / 170
⇒ C = $50
Thus, The store's profit = $85 - $50
= $35
Learn more about the percent visit:
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PLEASE QUICKLY!
find x:
-5x^2=1.8
Answers
Answer:
The answer and explanation is on the picture.
The number of hours per week that the television is turned on is determined for each family in a sample. The mean of the data is 30 hours and the median is 26.2 hours. Twenty-four of the families in the sample turned on the television for 15 hours or less for the week. The 12th percentile of the data is 15 hours. Step 1 of 5 : Based on the given information, determine if the following statement is true or false. The 54th percentile is greater than or equal to 25 hours.
Answers
Answer:
The given statement is false
Step-by-step explanation:
Given that:
mean = 30 hours
median = 26.2 hours
In the given sample, 24 of the families turned on the television for less than 15 hours for the week.
The 53rd percentile is less than 25 hours.
The Median represents the value that equally divides the whole data into two parts. This signifies that the median is the 50th percentile of the data.
Provided that the median is 26.2 hours. So, the 54th percentile should be greater than 26.2 hours.
Thus, the given statement is false.
Fill in the blank. If x:6 as 3:9, then x is equal to ___.
Answers
Answer:
2
Step-by-step explanation:
Answer:
2
Step-by-step explanation:
9÷6=1.5 3÷1.5=2
I hope this helps, and have a nice day! :)
what is the slope of the line?^
Answers
Answer:
(1/0) infinite slope if it is going wrong sorry
A factory made 100 jars of peanut butter. 30% of the jars contained creamy peanut butter. How many jars of creamy peanut butter did the factory make?
Answers
12. Which fraction does not represent a rational number?
a) -77/78
b) 0/25
c) -16/-9
d) 3/0
•Help me please!!!!
•i need answers as quickly as possible.
•i’m giving 15 points!!!
Answers
Please help, this is important.
Answers
Answer: B, D
Step-by-step explanation:
You Can just count the blocks
B: has 24 and D has 24 which both of them are between 30 and 20
Answer:
Step-by-step explanation:
D and b
Plz I will chose you the brainlest. (Chose all that apply)
Answers
Answer:
C
Step-by-step explanation:
Let us rule out the first one. c+11 is not equivalent.
The second one does not work either because it is adding the two terms instead of multiplying.
The last one does not work either because again, it is adding.
C, the third one works. This is because using multiplaction, you can rearrange the order of the terms and still get the same answer.
Therefore, the third one
Hope this helps! :)
Answer:
I think it is C and D
Step-by-step explanation:
!!!!
I don’t know the answer I just need some points to ask more questions !!! have a good day !!
Answers
Answer:
have a good day too
Step-by-step explanation:
Question 5 options:
Solve for the value of x.
3x - 4 = 8
Answers
Answer:
4
Step-by-step explanation:
Answer:
4
Step-by-step explanation:
3x - 4 = 8
3x - 4 + 4 = 8 +4
3x = 12
x = 4
PLEASSE HELP ME! Im stuckkklll
Answers
Answer:
5/8
Step-by-step explanation:
6 1/2 divided by 3/4
Answers
Answer: 8 2/3
13/2 ÷ 3/4
keep change flip
13/2 × 4/3
13×4= 52
2×3= 6
52/6= 8 2/3
I hope this helps:
Please help me! Will give brainleist! ✨
Answers
Answer:
1/16 D
Step-by-step explanation:
Answer:
1/16
Step-by-step explanation:
Multiply top with top and bottom with bottom
1/8 * 3/6 = (1*3)/(8*6) = 3/48
3 goes into 48
16 times
The answer is 1/16
The correct answer is 1/16 even though 3/48 is also correct. The question directions you to simplify.
A radio station had 162 tickets to a concert. They gave away 5 times as many tickets to listeners as to employees. How many tickets did they give away to employees?
Answers
Answer: 810
Step-by-step explanation:
Answer:
27
Step-by-step explanation:
trust me I did it it's 27
The radius of a circle is 13 in. Find its area in terms of
π
Answers
Answer:
169pi in. squared
Step-by-step explanation: 13x13xpi
7 is what percent of 14?
Answers
Good luck ;)
35.7 divided by 0.07
486.12 divided by 0.6
3.43 divided by 0.035
5,418.54 divided by0.009
812.5 divided by 1.25
Answers
Answer:
510, 810.2, 98, 602.06, 650
Step-by-step explanation:
its in the order as you put hope I got them right sorry if I messed up :)
Answer:
1.) 510
2.) 810.2
3.) 98
4.) 555.556
5.) 650
Which equation represents the same proportional relationship as the graph?
13
12
11
10
9
8
7
6
5
4
37
2
1
1 2 3 4 5 6 7 8 9 10 11 12 13 x
3
O
o y = 2X
ya
II
Х
Answers
Answer: 13
Step-by-step explanation: 13 because if u multiple u get 13 I hope this helped :)
On a coordinate plane, a line goes through points (0, 0), (5, 3), (10, 6) is
y = 3/5x
and, x y = 3/5
What is proportionality?The property of having suitable proportions in terms of size, number, degree, harshness, etc.: If a defensive action against an unfair attack results in the destruction that contravenes the proportionality criterion, it may even go far beyond a justifiable defense.
A mathematical comparison of two numbers is called a proportion. According to proportion, two sets of provided numbers are said to be directly proportional to one another if they increase or decrease in the same ratio. "::" or "=" are symbols used to indicate proportions.
Here the given three points are (0, 0), (5, 3), (10, 6).
So, the equation of the line passing through the points (0, 0), (5, 3) is
y- 0/ (x-0)= (3-0)/(5-0)
y/ x = 3/5
y= 3/5x
Learn more about proportionalities here:
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A state Motor Vehicle Department requires learners to pass a written test on the motor vehicle laws of the state. The exam consists of twenty true-or-false questions, of which eighteen must be answered correctly to qualify for a permit. In how many different ways can a learner who answers all the questions on the exam qualify for a permit
Answers
Answer:
211 ways
Step-by-step explanation:
Given :
Number of questions = 20
Number of correct correct questions to be answered in other to qualify should be atleast 18
Hence,
Correct questions could be either 18, 19 or 20 ;
Using combination :
nCr = n! ÷ (n-r)!r!
20C18 = 20! / (20 - 18)!18!
20C18 = (20* 19) / (2 * 1) = 190 ways
20C19 = 20! / (20-19)!19!
20C19 = 20 / 1 = 20 ways
20C20 = 20! / 0! 20! = 1 ways
Hence, total number of possible ways = (190 + 20 + 1) = 211 ways
A random sample of 11 nursing students from Group 1 resulted in a mean score of 65 with a standard deviation of 4.7. A random sample of 16 nursing students from Group 2 resulted in a mean score of 74 with a standard deviation of 2.5. Can you conclude that the mean score for Group 1 is significantly lower than the mean score for Group 2
Answers
Answer:
The calculated value of t= -1.118860 does not lie in the critical region t= -1.714 or t= -2.5. Therefore we accept our null hypothesis that the mean score for Group 1 is significantly lower than the mean score for Group 2 for both significance level of 0.05 and 0.01
Step-by-step explanation:
Groups Sample Size Mean Standard Deviation
1 11 65 4.7
2 16 74 2.5
Formulate null and alternate hypotheses as
H0 : u1 < u2 against Ha: u1 ≥ u 2
That is the mean of the group 1 is lower than the mean of the group 2
Degrees of freedom is calculated df = υ= n1+n2- 2= 11+16-2= 23
The significance level alpha is chosen to be ∝ = 0.05
The critical region t ≤ -t (0.05, 23) = -1.714
And if we choose alpha = 0.01 the critical region would be
t ≤ -t (0.05, 23) = -2.5
Here the difference between the sample means is x`1- x`2= 65-74= -9
The pooled estimate for the common variance σ² is
Sp² = 1/n1+n2 -2 [ ∑ (x1i - x1`)² + ∑ (x2j - x`2)²]
= 1/11+16-2 [ (65)²+(74)²]
= 1/23[ 4225+5476]
= 1/23[9701]
=421.782
Sp =√ 421.782=20.5373
The test statistic is
t = (x`1- x` ) /. Sp √1/n1 + 1/n2
t= -9/ 20.5373√1/11+ 1/16
t= -9/8.0439
t= -1.118860
The calculated value of t= -1.118860 does not lie in the critical region t= -1.714 or t= -2.5. Therefore we accept our null hypothesis that the mean score for Group 1 is significantly lower than the mean score for Group 2 for both significance level of 0.05 and 0.01
