1. x + 20
2. 0
3. 2x - 8
4. 95x + 10
5. -9x - 6
6. 4x + y - 5
7. -x + 6y + 5
8. x + y - 15
9. x + 4y + 4
Step-by-step explanation:• When working with variables and numbers, you have to put the variables first (in alphabetical order) and then the numbers.
• To evaluate an algebraic expression, we find the value of the expression when the variable is replaced by a given number.
• To evaluate an expression, we substitute the given number for the variable in the expression and then simplify the expression using the order of operations.
• When we are not given a number for the variable in the expression, we have to group like-terms.
Example: 5x + 6 + 3x - 2 - y1st: group 5x and 3x (add the terms together) = 8x2nd: group 6 and -2 (add the terms together) = 43rd: Since -y has no like-terms, we can't group it = -yFourth, put the terms in order (variables = alphabetical order and then numbers) = 8x - y + 41. 4x + 12 - 3x + 8
4x - 3x = 1x = x12 + 8 = 20x + 202. -8x + 1 + 2x - 1 + 6x
-8x + 2x + 6x = -8x + 8x = 01 - 1 = 003. 4x - 3 - 2x - 5
4x - 2x = 2x-3 - 5 = -82x - 84. 100x + 5 - 5x + 5
100x - 5x = 95x5 + 5 = 1095x + 105. -4x - 4 - 2 - 5x
-4x - 5x = -9x-4 - 2 = -6-9x - 66. 2x - 1 + 2x - 4 + y
2x + 2x = 4x-1 - 4 = -54x + y - 57. 5y - x + 2y - y + 5
5y + 2y - y = 5y + 1y = 6y-x + 6y + 58. -15 + 3y - 3x - 2y + 4x
3y - 2y = 1y = y-3x + 4x = 1x = xx + y - 159. 4 - 3y + 3x - 2x - y
-3y - y = 4y3x - 2x = 1x = xx + 4y + 4Hope I helped you, if I did can you please mark me the Brainliest?
mark has a window that is 67 square feet. The window is in the shape of a square, which of the following expresses the length of one side of the window?
{ mark all that apply}
A- √64 feet
B- √67 feet
C-√76 feet
D- √81 feet
E-√100 feet
Answer:
[tex]\sqrt{67}\:\mathrm{feet}[/tex]
Step-by-step explanation:
The area of a square with side length [tex]s[/tex] is given by [tex]s^2[/tex].
Therefore,
[tex]s^2=67,\\s=\fbox{$\sqrt{67}$}[/tex].
A student pays for 8.6 pounds of apples with a $10 bill. How much change does the student receive?
What do you do first to solve the problem?
Answer: - $9.70.
Step-by-step explanation:
Factor: w^2 + 16w + 63
Answer:
(w+7)(+9) I worked it out but not sure how to attach do yea
Step-by-step explanation:
Answer: (w + 7) (w + 9)
Step-by-step explanation: factor using the ac method
Find function inverse of f? F(x)=x+2/7
Answer:
f’(x) = x -2/7
Step-by-step explanation:
Let f(x)= y
Thus;
y = x + 2/7
x = y-2/7
So the inverse f’(x) = x - 2/7
On Thursday, a local hamburger shop sold a combined total of 417 hamburgers and cheeseburgers. The
number of cheeseburgers sold was two times the number of hamburgers sold. How many hamburgers were
sold on Thursday?
Let H represent Hamburgers.
Let cheeseburgers represent 2H .
H + 2H = 417
3H = 417
H = 417/3
H = 139 hamburgers
2H = 2 * 139 = 278 cheeseburgers
Therefore, there were 139 hamburgers sold on Thursday.
HELP HELP HELP POINTS GIVEN POINTS GIVENN
All except for the leg
The length of a rectangle is 3x-4 and the width is x. The perimeter is 72 feet. What is the measure of the length?
Answer:
26 is your answer. I hope this helps!
Step-by-step explanation:
In ΔUVW, u = 8.1 cm, v = 8.4 cm and ∠W=102°. Find the length of w, to the nearest 10th of a centimeter.
Answer:12.8
Step-by-step explanation:
(marking brainliest or however you spell it)
may someone help me on this? please?? thank you if you tried to help!
Answer:
6.4
Step-by-step explanation:
To do this you just have to multiply 40 by 2 to get 80 and than divide by 12.5 and you get 6.4
The wound in the ....... took a long time to ....... .
(heel,heal) fill the blanks i will give u points heart brainlist rating
Answer:
The wound in the heel took a long time to heal.
50 POINTS
If you are going 60 mph, how many miles will you go in 45 minutes?
Answer:
You would go 45 miles.
Step-by-Step Explanation:
If you are going 60 mph you would be going 1 mile per minute
In the equation, 5x + 3y = 30, I want to find the intercepts. Which would
problem would I solve to get the 'y' intercept?
15x = 30
15y = 30
5x + 3(0) = 30
5(0) + 3y = 30
Answer:
the fourth one
Step-by-step explanation:
y-intercept is when x equals 0
The vertical jump record at Teresa's school is 23 inches. On Field Day
Teresa jumped 2 feet 3 inches. Did Teresa break the record?
Answer:
yes
Step-by-step explanation:
two feet is 24 inches plus 3 = 27 inches
evaluate the question below
.
12-2
Answer:
=>12-2
=> 10
You're Welcome
Hope this helps you.
Pls, mark it as the brainliest. I need it.URGENT! PLEASE HELP ME!
Martin had read 70% of a book. He has 3 more pages to finish. How many pages are there in the book?
Answer:
15
Step-by-step explanation:
15x3=70
Answer:
5.1 pages
Step-by-step explanation:
70% of 3 is 2.1 and 2.1 + 3 = 5.1
A bag contains cards numbered from 1 to 14 one card is drawn at random find the probability of
a.) Selecting a prime number of a multiple of four
b.) selecting a multiple of two or a multiple of three
Answer:
One: P = 1/2 = 0.5
Two: P = 8/14 = 4/7 = 0.714
Step-by-step explanation:
One
I take it that the question is a prime number or 4.
P(four) = 1/14
The primes are 2,3,5,7,11,13. There are 6 of them
P(prime) = 6/14
P(prime or four) = 6/14 + 1/14 = 7/14 = 1/2
Two
Multiple of 2 := 2 4 6 8 10 12 14
Multiple of 3 := 9 in addition to 6 and 12 which cannot be counted twice.
P(2 or 3) = 8/14 = 4/7 = 0.714
Which of the following functions best describes this graph?
A. y = (x - 3)(x + 1)
B. y = x - x +5
C. y = x? -5x + 6
D. y = (x - 1)(x - 1)
Answer: D: Y=(x-1)(x-1)
Step-by-step explanation:
The function described by the graph is [tex](x-1)^2[/tex].
Therefore, the correct answer is Option D. y = ( x - 1 ) ( x - 1 )
Given data:
The function is represented as f(x) = y
Now, the value of f(x) is plotted below:
To plot the graph, start by determining some key points and then connecting them.
When x = 0:
f(0) = 1
So, the point is (0, 1).
When x = 1:
f(1) = 0
So, the point is (1, 0).
When x = 2:
f(2) = 1
So, the point is (2, 1).
The graph of [tex]f(x) = (x - 1)^2[/tex] is a parabola that opens upwards. The vertex of the parabola is at the point (1, 0), which corresponds to the minimum value of the function.
As x moves further away from 1 in either direction, the function increases.
Hence, the parabolic function is [tex]f(x) = (x - 1)^2[/tex].
To learn more about parabola, refer:
https://brainly.com/question/24042022
#SPJ7
Red Street has a slope of ¼ and goes through the point (0, 5)
Write out this equation as y = mx + b
Answer:
y = 1/4x + 5
Step-by-step explanation:
Answer:
y = 1/4x + 5
Step-by-step explanation:
We need to write the equation in slope-intercept form [ y = mx + b ] where m = slope and b = y-intercept. We are given a slope of 1.4 and y-intercept of 5, so fill it into the formula.
y = 1/4x + 5
Best of Luck!
) Luci Lulu opened a cookie store in the mall. She found that the relationship between the price of a cookie, p, and the number of cookies sold, x, is given by the linear relationship x = −2000 p + 4000 . Find the maximum revenue Luci can make selling cookies in one day
Answer:
The maximum revenue Luci can make selling cookies in one day is $4,004,000.
Step-by-step explanation:
Given;
x = −2000 p + 4000 ..................... (1)
Revenue = xp
Revenue = (−2000 p + 4000)p =
Revenue = −2000p^2 + 4000p .................... (2)
The price at which Luci will the maximum profit can be calculated by finding the derivative of equation (2), equating to 0, and then solve for p as follows:
−4000p + 4000 = 0
4000 = 4000p
p = 4000 / 4000
p = 1
This implies that the price at which Luci will the maximum profit is $1.
Substituting p = 1 into equation (2) to obtain the maximum revenue Luci can make selling cookies in one day, we have:
Revenue = (−2000 * 1)^2 + (4000 * 1)
Revenue = −2000^2 + 4000
Revenue = 4,000,000 + 4000
Revenue = 4,004,000
Therefore, the maximum revenue Luci can make selling cookies in one day is $4,004,000.
The range for a set of data, A. is 6.2
The range for another set of data, B. is 7.1.
Compare the spread of set A and B.
what
Answer:
0.9
Step-by-step explanation:
range=highest-lowest
=7.1-6.2
=0.9
8.
y = 5x - 1 and
-5x = -1-y put in you first!
Point of Intersection:
Answer: (0; - 1)
Step-by-step explanation:
y = 5x - 1 and 5x = - 1 - y
y = - 1 - 5x
5x - 1 = - 1 - 5x
5x = -5x
5x + 5x = -5x + 5x
10x = 0
x = 0
y = 5x - 1
y = 5 × 0 - 1 = - 1
What is the volume of the rectangular prism
Answer:
Step-by-step explanation:
you got this i believe in you!
In the triangle ABC , Angle A = 46° and Angle B = 83°. How large is the exterior angle at C?
This is a problem with no diagram
Answer:
180 - 46 - 83 = 51 is the measure of angle C
the exterior angle at angle C, and angle C, are supplementary. since angle C is 51 because of the interior angle triangle sum theorem, then the exterior angle is: 180 -51 = 129 degrees.
Step-by-step explanation:
I hope this helps :)
HELPPP PLEASEEEE :) !!!!!
Answer:
wu need help with
Step-by-step explanation:
that's easy it a
Find the slope of the line that passes through the two points below."
(7,-1) and (9,0)
Answer:
1/2 or 0.5 (same value, different form)
Step-by-step explanation:
Ok...since I can't actually graph it, we can make a table out of it....
x y
7 -1
9 0
From -1 to 0, we add 1 (this is for the y section)
From 7 to 9, we add 2 (this is for the x section)
Now all we have to do is divide the y with the x
y/x = 1/2
The slope will be 1/2 (fraction form) 0.5 (decimal form)
Hope this helped!
Please help me anyone I’m kinda stuck
Answer:
z's exponent = 5
Step-by-step explanation:
the degree of monomial is basically all of the exponents added up
so:
x's exponent + y's exponent + z's exponents = the degree
So:
1+2+z's exponent = 8
(since x to the power of 1 = x)
3+z's exponent = 8
Subtract 3 from each side:
z's exponent = 5
9.5=25/t+(-8) helppppppppp
Answer:
437.5Step-by-step explanation:
I will REALLY answer your question :)
9.5 = 25/t + -8
The first step here is to simplify t + -8. If you add a negative of something, you also subtract. This can be rewritten as:
9.5 = 25/t - 8
Now, we need to add 8 to undo the subtraction.
17.5 = 25/t
Now, to undo the division, we will multiply the whole equation by 25.
17.5 x 25 = 437.5
x + 4 =7
Solve the equation for the value of the variable show all work someone please help
Answer:
x = 3
Step-by-step explanation:
x + 4 = 7 ( isolate x by subtracting 4 from both sides )
x = 3
The total cost of 2 bracelets and 3 necklaces is $15.50. The total cost of 4 bracelets and 1 necklace is $13.50. Let b represent the number of bracelets and n represent the number of necklaces.
Answer:
There is no question but if you put the question in the comments down below I will answer it.
Step-by-step explanation:
Ana uses Talk-A-Lot and Peter uses Talk-to-Me. Each company charges
the same amount per hour of talk time, however Ana and Peter will never
be charged the same amount. Write a system of equations that could
represent the situation. Explain.
Answer:
They both talk for a different amount of time