please answer w/ explanation !!
is (1 , 2) the solution to the following system of equations?
Answers
Answer:
Yes this is a solution to the system of equations.
Step-by-step explanation:
What you do is you have to make sure that 1 and 2 are both real numbers, then you substitute the 7 for the first equations and the 14 from the second equation, and put the 2 there instead. Because you used the Y as the 7 in the first equation you can get rid of the Y in the equation and get X = 2, and you just check to make sure that 2 is included in the ( ). You are welcome :)
Related Questions
To find the LCM using prime factorization, we must...
A. Find the GCF (circle the common prime factors) then multiply these by the other B. prime factors that were not in common.
C. Circle the common prime factors then multiply them together.
D. Multiply all of the prime factors together.
Answers
Answer:
i think A
Step-by-step explanation:
help me solve the problems, please! I will give the brainiest!
Answers
Answer:
1/5
1/3
Step-by-step explanation:
For the first problem:
5/7 of ... is 1/7
so
5/7 of x is equal to 1/7
so
(5/7)x = (1/7)
so
x = (1/7)/(5/7)
so
x = 1/5
For the second problem:
5/7 of ... is 5/21
so
5/7 of x is equal to 5/21
so
(5/7)x = (5/21)
so
x = (5/21)/(5/7)
so
x = 1/3
What is the slope of the line shown?
Please note that anyone who answers this post with random letters and or numbers that have nothing to do with this mathematics problem will be deleted or reported.
Answers
Hello!
[tex]\large\boxed{Slope = -\frac{1}{2}}[/tex]
Use the slope formula along with provided points to solve for the slope.
We can use the points (-4, -1) and (0, -3) and plug these values into the equation:
[tex]m = \frac{y_{2}-y_{1}}{x_{2}-x_{1}}[/tex]
[tex]m = \frac{-3-(-1)}{0-(-4)} \\\\m = \frac{-2}{4} \\\\m = -\frac{1}{2}[/tex]
Which values from the given replacement set make up the solution set of the inequality? m+7<18 ; {8, 9, 10, 11}
Answers
Answer: 8, 9, and 10
Step-by-step explanation: whatever value m is must be less than 18
What do you get when you subtract the actual number from the estimated number?
Answers
Answer:
you would most likely get a decimal but I'm not for sure
Step-by-step explanation:
What number on the number line is exactly the same distance from -8 and +4?
Answers
Eyeheheheh
Title of Novel: War Horse Author:______________________________________________________ When and where was the author born?________________________________ In what year was the novel written? _________________________________ Time Frame Research Answer How did this influence the writing of the story? Give three important details about this author’s life. What was the political climate of the time in which the novel was written? Were there any major wars or conflicts, either local or worldwide, during this time? What was the economic situation during the time in which the novel was written? Was there a depression or any type of major financial suffering during this time? Cite at least two resources that you used to get your information from, using MLA format. (MLA format instructions can be found in the Writer’s Workshop) In a short paragraph, explain what important theme or message your novel reveals about the past. Then, tell how this same message relates to today’s world.
Answers
Answer:
Michael Morpurgo and he was born at st.albans united kingdom
Step-by-step explanation:
Helppp meeee plzzzzzzzz
Answers
Which equation describes this graph?
A. y=−3x−3
B. y=x−3
C. y=x
D. y=x+3
Please help- I am super confused with these kinds of graphs.
Answers
Answer:
B
Step-by-step explanation:
Can you please help with this please!!!!!!i need this please answer 5-8 please actually answer please
Answers
Answer:
69, 36, 39, 87.5
Step-by-step explanation:
Answer no. 5
60/100×15=9
60+9=69
Answer no. 6
32/100×12.5=4
32+4=36
Answer no. 7
50/100×22=11
50-11=39
Answer no. 8
125/100×30=37.5
125-37.5=87.5
Answer:
The answer is 69, 36, 39, 87.5.
I Will Mark Brainliest!!
The table below shows the combination of dry pre-packaged mix and water to make concrete. The mix says for every 1 gallon of water is equal to 8lbs. Using the information provided in the table, complete the remaining parts of the table.
Fill in the table with the lowest terms fractions.
To enter a mixed number, write it in the format 5 1/2. Note that there is a space between the whole number and fraction.
Answers
Answer:
Dry Mix | Water | Total
64 | 8 | ?
75 | 10 | ?
| | ?
4 1/2 | 14/25 | ?
Step-by-step explanation:
im not done
Answer:
i dont know
Step-by-step explanation:
Spiral review
6y + 5
Name the coefficient, variable and constant of the expression.
Evaluate if y = 1/2
Answers
Answer: The evaluated answer is 8. The coefficient is 6. The variable is y. The constant is 5.
Step-by-step explanation for the evaluated answer: Just substitute 1/2 for y. You should get 6x1/2+5. Then, multiply the 6 and the 1/2 and you should get 6/2+5. 6/2 can be simplified to 3 and then you just need to add the five to get 3+5=8. S your final answer should be 8. Hope this helps!
Select EACH situation that can represent a proportional relationship.
The total amount of toys a child earns when he earns 2 toys a week for w weeks.
The total amount a taxi driver earns who charges a base of $3 plus an additional $1 per mile for m miles.
The price of buying x avocados at $4 a pound.
The total amount a Gardner earns who charges a one time fee of $10 plus $15 an hour for gardening r hours.
PLZZZZZ HELP MEEE
Answers
Answer:
c
Step-by-step explanation:
because a proportional relationship can be thought of as one is always the same then gets times by the other or in this case 4 by x
Options A and C have a proportional relationship.
Given that, the total amount of toys a child earns when he earns 2 toys a week for w weeks.
What is a proportional relationship?Proportional relationships are relationships between two variables where their ratios are equivalent. Another way to think about them is that, in a proportional relationship, one variable is always a constant value times the other. That constant is known as the "constant of proportionality".
A) Let the total number of toys be x
So, x=2w
B) Let the total amount a taxi driver earns be y
So, y=3+m
C) Total cost of buying x avocados be p
So, p=4x
D) Let the total amount a Gardner earns be c
So, c=10+15r
Therefore, options A and C have a proportional relationship.
To learn more about the proportional relationship visit:
brainly.com/question/12917806.
#SPJ2
PLEASE HELPPPPP!!!!!!!!!!!!
Answers
Answer:D
Step-by-step explanation:
I just did the quiz and passed !
Multiply: 14.3 x -0.5
Answers
Answer:
The answer is -7.15, hope this helps.
I will give brainliest to first awnser
What is the slope of the line representing the conversion of degrees to gradients?
Express your answer as a decimal rounded to the nearest hundredth.
Answers
Answer:
1.11
Step-by-step explanation:
The Slope is defined as the rate of change.
In this case,
Slope = -200+100/-180+90
= -100/-90
= 10/9
= 1.11
Which equation is a proportional relationship?
A. y=2x
B. y=-3x
C. Both
D. Neither
Answers
Answer:
c
Step-by-step explanation:
Answer:
C
Step-by-step explanation:
Solve: 3(x- 2)= 18.
X=
Answers
Answer:
x = 8
Step-by-step explanation:
3(x-2)=18
3x-6=18
3x=24
x=24/3
x=8
Answer:
x = 8
Step-by-step explanation:
3 (x - 2) = 18
3x - 6 = 18
18 + 6 = 24
3x = 24
x =
12 years ago, Catherine deposited $200 in a savings account that pays 7.25% simple interest. What is the balance in Catherine’s account?
Answers
Answer:
$374
Step-by-step explanation:
I=PRT
I=Interest
P= starting amount
R= Rate
T= Time
12*200=2400*(0.0725)=174+200=
$374
please i think theres 2 left
Answers
Answer:
10/27
Step-by-step explanation:
The negative signs check each other out making it positive.
heelelp meeeee pleaseeeeeeeeeeee
Answers
Answer:
answer is 446
Step-by-step explanation:
What is the equation for the line in slope-intercept form?
Enter your answer in the box.
Answers
Answer:
y = 1/2x - 4
Step-by-step explanation:
find slope using rise/run and find y-intercept then plug into the equation.
I NEED HELP ASAP <3
Mateo’s aunt bought a share of stock many years ago.
The value of the stock increased by 80%.
Its value is now $270.
What was the value of the stock when Mateo’s aunt bought it?
Answers
The stock has increased 80% hence it is now worth 180%.
Find the original 100%.
First find 1% (Divide by 180)
$270/180 = $1.50
Now find 100% (Multiply by 100)
$1.50 X 100 = $150
The answer is $150
The value of the stock when Mateo’s aunt bought it was $150.
What is the fundamental principle of multiplication?Multiplication is the mathematical operation that is used to determine the product of two or more numbers. If an event can occur in m different ways and if following it, a second event can occur in n different ways, then the two events in succession can occur in m × n different ways.
We need to find the value of the stock when Mateo’s aunt bought it.
Given that the value of the stock increased by 80%. Its value is now $270.
The stock has increased 80% thus it is now worth 180%.
Then Divide by 180;
$270/180 = $1.50
Now find 100% then Multiply by 100;
$1.50 X 100 = $150
The value of the stock when Mateo’s aunt bought it was $150.
Learn more about multiplications;
https://brainly.com/question/14059007
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please help ~~ and if you could, please explain what a constant of proportionality is :)
Answers
Answer:
The answer is D. k=5
Step-by-step explanation:
The constant of proportionality is just the rate the x increases or decreases at. The x is increasing by 5 over time so the COP or rate is 5.
Answer:
The answer is D: K=5
Step-by-step explanation:
The constant of proportionality is the ratio between two directly proportional quantities. Two quantities are directly proportional when they increase and decrease at the same rate. The constant of proportionality k is given by k=y/x where y and x are two quantities that are directly proportional to each other.
So, what you do is that you get the first number, which is 5/25. Simplify it and divided to get it as low as possible, if you do that, you would get 1/5 and 1/5 can also mean 5/1 in these situations. So your basic answer is 5.
The distance between the school and the airport on a map is 7.25 cm. The scale of the map is 1 cm : 12 m. What is the actual distance between the school and the airport?
PLEASE HELP ASAP
Answers
Answer: 87 M
Step-by-step explanation:
Step by step explanation:
PLEASE HELP ME, I WILL GIVE BRAINLIEST (I WILL GIVE 50 POINTS)
Answers
Answer:
B, D, EStep-by-step explanation:
[tex]B.\\\left(8\dfrac{4}{5}+3\dfrac{2}{10}\right)+\left(-1\dfrac{1}{5}\right)=8\dfrac{4}{5}+\left(3\dfrac{2}{10}+\left(-1\dfrac{1}{5}\right)\right)=8\dfrac{4}{5}+\left(3\dfrac{2}{10}-1\dfrac{1}{5}\right)[/tex]
[tex]D.\\8\dfrac{4}{5}+3\dfrac{2}{10}-1\dfrac{1}{5}=8\dfrac{4}{5}+\left(3\dfrac{2}{10}-1\dfrac{1}{5}\right)[/tex]
[tex]E.\\-\left(-8\dfrac{4}{5}\right)-\left(-3\dfrac{2}{10}\right)+\left(-1\dfrac{1}{5}\right)=8\dfrac{4}{5}+3\dfrac{2}{10}-1\dfrac{1}{5}=8\dfrac{4}{5}+\left(3\dfrac{2}{10}-1\dfrac{1}{5}\right)[/tex]
Used:
Associative property
[tex](a+b)+c=a+(b+c)=a+b+c[/tex]
and
[tex](-)(-)\to(+)\\(-)(+)\to(-)\\(+)(-)\to(-)[/tex]
Answer: D
Step-by-step explanation: The answer is D. It's pretty straight forward. Compare the two answers and you will see that D is equivalent to that equation.Without computing, decide whether the value of each expression is much smaller than 1, close to 1, or much larger than 1.
1,000,001÷99
3.7÷4.2
1÷835
100÷1100
0.006÷6,000
50÷5014
Answers
Answer:
1- more than 1
2-less then 1
3-less then 1
4- less then 1
5-less then 1
Step-by-step explanation:
What percent is represented by the shaded portion of this 10 × 10 grid?
A grid model has 100 squares. 40 squares are shaded
1. 4/100
2. 40/100
3. 4%
4. 40%
Answers
Answer:
answer #4
Step-by-step explanation:
because you have 100 tiles. if you fill in 1 tile, that 1 percent. if you fill in 4 tiles, that 4 percent. you fill in 40? 40 percent. and option 2 is not a percentage so it cannot be correct
plz help 100 points!!!!!!!!!!!!!!!!
Answers
Answer:
I'm pretty sure is number two
Step-by-step explanation:
because I solved the problems
Answer:
The answer is A
Step-by-step explanation:
Express the number in scientific notation as real numbers:
[tex]9.4 \times {10}^{ - 8} = 0.000000094 \\ 9.25 \times {10}^{ - 6} = 0.00000925 \\ 2.5 \times {10}^{3} = 2500 \\ 7 \times {10}^{3} = 7000[/tex]
So, from least to greatest;
[tex]0.000000094 - 0.00000925 - 2500 - 7000[/tex]
9.4 x 10^-8, 9.25 x 10^-6, 2.5 x 10^3, 7 x 10^3 (first option)
Ronelle asked 100 students to choose their favorite subject from among mathematics, history, and art. She found that 22 students chose mathematics, 26 history, and the rest art. What percent of students chose art?
22%
26%
48%
52%
Answers
Answer:
❌22%
❌26%
❌48%
✔️52%