Answer: {y,x}={2,8}
// Solve equation [2] for the variable y
[2] y = -2x + 18
// Plug this in for variable y in equation [1]
[1] (-2x+18) - x = -6
[1] - 3x = -24
// Solve equation [1] for the variable x
[1] 3x = 24
[1] x = 8
// By now we know this much :
y = -2x+18
x = 8
// Use the x value to solve for y
y = -2(8)+18 = 2
Solution :
{y,x} = {2,8}
For the given expression identify the terms like terms coefficient and constant terms then simplify the expression -8c+-c+1
Answer:
The simplified expression is : -9c +1
Step-by-step explanation:
The like terms are -8c and -c
The constant term is 1
The simplified expression is :
-8c + -c + 1 = -9c +1
Work out 20 percent of 800
160
Step-by-step explanation:Hi there !
100% ............... 800
20% .......................x
x = 20×800/100 = 16000/100 = 160
Good luck !
.. What type of number is the following?
24i+16
A. Real
B.purely
C.complex
D. Not enough information
Answer:
Step-by-step explanation:
The i is usually the square root of -1 which does not exist in the real number system.
The number given is a mixture of real and complex and is classified as complex.
The answer is C
Answer:
the answer is: C,Complex
Step-by-step explanation:
Complex Numbers
A Complex Numbers is a combination of a real number and an imaginary number in the form a + bi. The real part is a, and b is called the imaginary part.
Examples include 4 + 6i, 2 + (-5)i, (often written as 2 - 5i), 3.2 + 0i, and 0 + 2i.
Note the last two examples:
3.2 + 0i is just the real number 3.2. All real numbers are complex numbers with zero for the imaginary part.
0 + 2i is just the imaginary number 2i. All imaginary numbers are complex numbers with zero for the real part.
I hope it helps you lot!!!
PLSS HEEELLLPPP JESHJDUSUSJSJ
a rectangle is 3x feet long and 4feet wide.the value of the perimeter (in feet) is equal to the value of the area in square feet. find x
Answer:
x = [tex]\frac{4}{3}[/tex]
Step-by-step explanation:
Rectangle:
Length = 3x feet
Width = 4 feet
Perimeter = 2*(length +width)
= 2* (3x + 4)
= 2*3x + 2*4
= 6x + 8
Area = length * width
= 3x * 4
= 12x
Area of rectangle = perimeter of rectangle
12x = 6x + 8 {Subtract 6x form both sides}
12x - 6x = 8
6x = 8 {Divide both sides by 6}
x = 8/6
x = [tex]\frac{4}{3}[/tex] feet
Answer:
3 feet x 4 feet= 12 feet
Step-by-step explanation:
Plz help! I will mark you brainliest!
Answer:
A. 80
Step-by-step explanation:
No math necessary. You know the brace needs to be longer than the distance between posts, so cannot be 4, 15, or 42 inches. The only answer choice longer than 64 inches is the correct one:
80 inches
Find the sum or difference of the polynomials (x2−xy+y2) − (x2+xy+y2)
What is the solution to 2x-8<12?
X8
X<10
X40
Answer:
x<10
Step-by-step explanation:
Isolate X:
2x-8+8<12+8 = 2x<20
Then divide by 2:
2x/2<20/2 = x<10
x<10
solve for b
thank you :)
Answer:
[tex]b = 8[/tex]
Step-by-step explanation:
First, cross multiply across the equal sign. Note that what you do to one side, you do to the other:
[tex](b+10)(2b-7)(\frac{8}{b+10}) = (\frac{4}{2b -7})(b+10)(2b-7)\\ \\(2b -7)(8) = (4)(b+10)[/tex]
Next, distribute 8 and 4 to their corresponding parenthesis:
[tex]8(2b -7) = 16b - 56\\4(b + 10) = 4b + 40[/tex]
[tex]16b - 56 = 4b + 40[/tex]
Next, isolate the variable, b. Note the equal sign, what you do to one side, you do to the other. Do the opposite of PEMDAS.
First, add 56 and subtract 4b from both sides:
[tex]16b (-4b) - 56 (+56) = 4b (-4b) + 40 (+56)\\16b - 4b = 40 + 56\\12b = 96[/tex]
Isolate the variable, b. Divide 12 from both sides:
[tex]12b = 96\\\frac{12b}{12} = \frac{96}{12} \\b = \frac{96}{12} \\b = 8[/tex]
[tex]b = 8[/tex] is your answer.
~
When a number is doubled and then increased by 20, the result is 5 less than 3 times the number. What is the number?
Answer:
2x+20=3x-5 (x=25)
Step-by-step explanation:
2x+20=3x-5
-2x+5
25=x
hope this helps ( a brainliest would be nice too)
The number is equal to 25.
Let the number be n.To write the word problem as an algebraic equation:
In this exercise, we are required to translate the word problem into a mathematical (algebraic) expression and solve for the unknown variable (number):
Translating the word problem into an algebraic expression, we have;
A number is doubled and then increased by 20:
[tex]2n + 20[/tex] ...equation 1.
The result is 5 less than 3 times the number:
[tex]3n -5[/tex] ...equation 2
Equating the two equations, we have:
[tex]2n+20=3n-5\\\\3n-2n=20+5\\\\n=25[/tex]
Read more: https://brainly.com/question/22970937
How many times bigger is Triangle H than Triangle B ?? Pls help me ty
Answer:
4/3
Step-by-step explanation:
Divide one side of Triangle H by 1 side of triangle B to get the scale factor
John has a soup recipe that calls for two 14.5-ounce cans of chicken broth. The recipe serves 4 people. He wants to increase the recipe to serve it to a party of 28 people. If John buys chicken broth in 1-quart containers, how many containers does he need?
Answer:
6 11/32
Step-by-step explanation:
The two cans of broth used in the recipe total 2·14.5 oz = 29 oz. The number of people John wants to serve is 28/4 = 7 times the number served by one recipe. So, the amount of broth needed is ...
(29 oz)·7 = 203 oz
Each quart container of broth holds 32 oz, so John will need ...
(203 oz)/(32 oz/container) = 6 11/32 containers
John needs 6 11/32 containers of broth.
_____
If John must buy the broth, he must buy 7 containers. he will have 21/32 of a container left over after making his soup.
Plot the solution set of |-x|=3.5
Answer:
3.5
Step-by-step explanation:
f(x)=x^2+8x+15/2x^2+11x+5
state the equations for the vertical and horizontal asymptotes of the graph y=f(x)
Answer:
Step-by-step explanation:
f(x)=x+6 when x= -2, 0, and 5.
f(-2)=__
f(0)=__
f(5)=__
^ I have no idea how to solve this and if your supposed to sub the values into both x's or just one. please help!
Answer:
5
Step-by-step explanation:
Are 7x-4y=4 and x-4y=3 Parallel perpendicular or neither
Answer:
neither
Step-by-step explanation:
Round to 4,725.806
Answer the question
Answer:
Step-by-step explanation:
Your question is incomplete. Are you rounding to the nearest 100? nearest 100,000?
4725806 to the nearest thousand is 4725800.
4725806 to the nearest unit is 4725806.
to the nerest ten is 4725810.
120 ≤ 12 k + 29 need help
The answer is [tex]k[/tex] ≥ [tex]\frac{91}{12}[/tex]
First, you must flip the equation
[tex]12k+29[/tex] ≥ [tex]120[/tex]
Then, you must subtract 29 on both sides
[tex]12k[/tex] ≥ [tex]91[/tex]
Finally, divide both sides by 12
[tex]k[/tex] ≥ [tex]\frac{91}{12}[/tex]
What is 3 3/5 divided by 2 1/4? :)
Answer:
1.6 or 8/5
Step-by-step explanation:
I really Need Help..
Solve the system.
y=−6x−1
3x+4y=17
Answer:
(-1, 5)
Step-by-step explanation:
convert 96 ounces into pounds and explain how you determined the answer
Answer:
6pounds
Step-by-step explanation:
1 pound = 16 ounces
divide the 96 and 16 to get 6 pounds
Madison is starting her own sewing business. Madison thinks she will do a better job than her competitors, so she thinks she can charge $13.05 per hour. If she knows she will only be able to work 190 hours per month (that's 47.5 hours per week), how much money will she earn each month?
Answer:
$2479.5Step-by-step explanation:
In this problem we will estimate her monthly earnings
given that she earns $13.05 per hour
and also given that she works for 190 hours in a month
then in a month, her earnings will be
=$13.05*190
=$2479.5
alternatively,
per week she works 47.5hours
in a week she will earn 13.05*47.7= $622.485
4 weeks make a month
then after one month her earning will be
$622.485*4= $2479.5
please answer HURRY PLEASE (have to have it done before 12:00
Answer:
Hello, It isn't clear.
It looks blur to me
Answer:
7. C
8. A
To find slope, we need two points. Once we have them, we can put them into the formula:
[tex]\frac{y_2 - y_1}{x_2 - x_1}[/tex] ← this is rise/run
For 7, it's just a matter of comparing any two consecutive points.
For 8, you are given the two points.
If f=(9/5 x c ) +32 85c =__f
Answer:
185
Step-by-step explanation:
Answer:
It entirely depends upon an individual.
It’s a known fact that humans need social interaction. Lack of which can affect their social behaviour and mindset. Whilst most would agree that e-learning is widely preferred by the younger generation, it is undeniably detaching them from social interactions.
When kids or students are engrossed in learning online, they’re missing out on social interactions that can open various doors of the mind, be it creative or observational skills. It’s understood that e-learning allows an individual to study far and beyond the subject and gives them an opportunity to explore multiple fields of their interest, one can’t ignore that it chains them to the system as well.
The deal-breaker in such a situation is an individual. If they demand social interaction, they would keep their digital device aside for once and would get indulge in social interaction. If they’re of another kind, they would prefer spending their days and nights just exploring and reading about new things online.
So, in my opinion, it’s quite subjective to narrow down the overall benefits and drawbacks of e-learning.
I hope I have answered your question.
What is the measure of angle 2?
Answer:
142
Step-by-step explanation:
they are the same length
5x + 4 = x + 12
solve!
Answer:
2
Step-by-step explanation:
Step 1:
5x + 4 = x + 12 Equation
Step 2:
4x + 4 = 12 Subtract x on both sides
Step 3:
4x = 8 Subtract 4 on both sides
Step 4:
x = 8 ÷ 4 Equation
Answer:
x = 2
Hope This Helps :)
Answer:
x=4
Step-by-step explanation
5x+4 = x+12
4x+4=12
4x=16
x=4
Help ASAP Use the parabola tool to graph the quadratic function f(x)=x2−12x+27.
Graph the parabola by first plotting its vertex and then plotting a second point on the parabola.
Answer:
2 x-intercepts at 3 and 9
Step-by-step explanation:
x^2-12x+27=0
(factoring)
(x-3)(x-9)=0
this tells us that there is going to be a x-intercept at both 3, and 9, and that there is no stretching of it. It would look like this.
What is the slope of the line that passes through the points (3,-2) and (1,8)
Answer:
10/-2= -5
Step-by-step explanation:
slope= change of y/ change of x
-4x + 40 > -4
Solve quick le,ase
Answer:
x>-39
Step-by-step explanation:
-4x/-4=x
-4/-4=1
1-40=-39
Answer: x is greater than 9 x>9
Step-by-step explanation:
You see -4 times 9 equals to -36. And -36+plus 40 equals to -4. The question is asking you to make sure the left side is greater. So, it has to be greater than 9. for example -4 times 8 equals to -32. And -32+40 equals to 8. So your answer is X>9. I hope that helped you.
