Answer:
17
Step-by-step explanation:
4(5)-3
20-3
17
the answer is 17
a new laptop. It is on sale for 20% off. If it originally cost $1,200, what is the sale price?
Answer:
960
Step-by-step explanation:
A company has to buy computers and printers. Each computer costs $550 and each printer costs $390. If
the company spends $8160 and buys a total of 16 machines, how many of each did it buy?
a. Let Statements:
b. Write the system:
Answer:
Answer:the company bought 12 computers and 4 printers.
Step-by-step explanation:
Step-by-step explanation:
Let x represent the number of computers that the company bought.
Let y represent the number of printers that the company bought.
The company buys a total of 16 machines. It means that
x + y = 16
Each computer costs $550 and each printer costs $390. If the company spends $8160 for all the computers and printers that was bought, it means that
550x + 390y = 8160 - - - - - - - - - - 1
Substituting x = 16 - y into equation 1, it becomes
550(16 - y) + 390y = 8160
8800 - 550y + 390y = 8160
- 550y + 390y = 8160 - 8800
- 160y = - 640
y = - 640/ - 160
y = 4
Substituting y = 4 into x = 16 - y, it becomes
x = 16 - 4
x = 12
Answer:
The company bought 12 computers and 4 printers.
Step-by-step explanation:
Let x represent the number of computers that the company bought.
Let y represent the number of printers that the company bought.
The company buys a total of 16 machines. It means that
x + y = 16
Each computer costs $550 and each printer costs $390. If the company spends $8160 for all the computers and printers that was bought, it means that
550x + 390y = 8160 - - - - - - - - - - 1
Substituting x = 16 - y into equation 1, it becomes
550(16 - y) + 390y = 8160
8800 - 550y + 390y = 8160
- 550y + 390y = 8160 - 8800
- 160y = - 640
y = - 640/ - 160
y = 4
Substituting y = 4 into x = 16 - y, it becomes
x = 16 - 4
x = 12
Edgar bought candy and popcorn for a group of friends at a basketball game. A bag of candy costs $2.50 and a bag of popcorn costs $3.50. He purchased 8 items for a total of $22.00. What system of equations could be used to find how many bags of candy c, and how many bags of popcorn p, that he bought? Group of answer choices
Answer:
im very very excited today because its my dogs b-day, int that great?
Step-by-step explanation:
Answer:
Are we ansering which system of equations, or how many bags he bought, or both?
Step-by-step explanation:
How would knowing the type of symmetry help you graph a function?
A graph is said to be symmetric about the y -axis if whenever (a,b) is on the graph then so is (−a,b) . Here is a sketch of a graph that is symmetric about the y -axis. A graph is said to be symmetric about the origin if whenever (a,b) is on the graph then so is (−a,−b) .
hope this helped u <3
Answer: How do you describe the symmetry?
If f (-x), then the graph of f(x) is symmetrical with respect to. A function symmetrical with respect to the y-axis is called an even function. A function that is symmetrical with respect to the origin is called an odd function.
Step-by-step explanation: hope I help you with your problems
Please help me I don’t understand it at all
Answer:
The second choice; KJL and HGJ
Step-by-step explanation:
These 2 angles are corresponding angles
30 points and BRAINLiEST PLS HELP!!
What decimal number does point A on the number line below represent?
A vertical number line is shown from negative 2.00 to 0 to positive 2.00.There are tick marks to show increments of 1 over 4. Only the whole numbers are labeled. Point A is plotted at the first tick mark below negative 1.00.
−0.75
0.75
−1.25
1.25
Answer:
Fr
Step-by-step explanation:
Answer:
-0.75
Step-by-step explanation:
Tell whether the following equation has one, zero, or infinitely many solutions.
2(6 - 2y) = -1(4y - 9)
Group of answer choices
A) Zero solutions
B) Infinitely many solutions
C) One solution
Answer:
Look at the attachment below
Step-by-step explanation:
Hope this helps (:
I need your help ASAP!
Answer:
True
Step-by-step explanation:
-(-2x - 1) + 3(2x -2)
Answer:
Assuming you wanted the expression simplified, the answer is 8x-5
Step-by-step explanation:
this is a great online math calculator site, Mathw ay. I hope it helps! have a great day mark as brainlest!
Answer:
solve
Step-by-step explanation:
it
what is the square root of 144? plz temme!!!!!!!!!!1
Answer:
12
Step-by-step explanation:
12x12= 144
What operation is being done to the variable in the equation -5m = -40?
It's being multiplied by -5.
It's being divided by -5.
It's being multiplied by -40.
It's being divided by -40.
Answer:
it's being divided by -5
Step-by-step explanation:
-5m= -40
m=8
The operation is being done to the variable in the equation -5m = -40 is multiplied by -5.
What is an equation?Equations are mathematical expressions that have two algebras on either side of an equal (=) sign. The expressions on the left and right are shown to be equal, demonstrating this relationship. L.H.S. = R.H.S. (left-hand side = right side) is a fundamental simple equation.
The equation is given as; -5m = -40
-5m= -40
Solving, multiplied by -5.
m= - 40/-5
m = 8
Therefore, the operation is being done to the variable in the equation -5m = -40 is multiplied by -5.
To know more about equation:
brainly.com/question/10413253
#SPJ2
Here are recipes for two mixtures of salt and water that taste different. a) If you used 10 cups of water, which mixture would use more salt? How much more? Explain or show your reasoning. b) Which mixture tastes saltier? Explain how you know.
Answer:
DrPepper is a carbonated soft drink. It was created in the 1880s by pharmacist Charles Alderton in Waco, Texas, and first served around 1885. Dr Pepper was first nationally marketed in the United States in 1904 and is now also sold in Europe, Asia, North and South America, and Australia, as well as New Zealand and South Africa as an imported good. Variants include Diet Dr Pepper and, beginning in the 2000s, a line of additional flavors.
Step-by-step explanation:
Answer:
All sound really freaking salty. And rule out the 3rd option cause that uses more water to salt than any. The saltiest would be Choice a, because, the other options have more water to salt than choice a.
Step-by-step explanation
My grammarly says this writing sucks.....hope it doesnt for you. Best i can explain
Find the slope and the y-intercept of the line whose equation is -5x+3y-8=0
slope = 5/3x
y intercept = 8/3
Step-by-step explanation:
3y = 5x + 8 + 0
divide all the numbers by 3
y = 5/3x + 8/3
A survey of Mr. Young's class shows that 1 out of 3 students are going to buy a pool pass for the summer. Based on this result, how many of the 630 students in the school are expected to buy a pool pass?
Answer:
210 students
Step-by-step explanation:
1/3 of 620 is 210
Pls help I'm gonna give brainliest but just help pls I need to do this but I don't get it.
Ellen wants to purchase a book that is regularly priced at $18. The book is discounted 15%. She also needs to pay a 6% sales tax on the discounted price.
What is the total amount Ellen will pay for the book?
Answer:
$16.22
Step-by-step explanation:
When 18 dollars is discounted by 15%, we first need to find what 15% of 18 is. 18 times .15 is 2.7, and 18-2.7 is 15.3.
Then, we need to find the sales tax, which applies to the discounted price. 15.3 times 0.06 is 0.918. Add that to 15.3 and you get 16.218, or about $16.22. Hope this helped! :D
PLEASE HELP ITS DUE IN 15 MINSS!!!!!
Given the equation of a circle below, find the diameter of the circle. Use only the digits 0-9 to enter the diameter.
x squared plus y squared minus 16 x plus 12 y equals 21
Answer
he diameter of the circle is 22 units.
x² + y² - 16x + 12y = 21
If this answer is correct, please make me Brainliest!
HAVE AN AMAZING DAY GOODLUCK
-Ary
7(2 - 3x) - 10
Simplify expressions
Answer:
4-21x
Step-by-step explanation:
There is no solution to the equation sec x = 0.
True or False
Answer
yes it is true
Your weight on the moon is 16.5% of your weight on Earth. If you weigh 150 pounds on Earth, how much will you weigh on the moon?
Answer:
33 pounds
Step-by-step explanation:
Your weight on the Moon is 16.5% what you would experience on Earth. In other words, if you weighed 100 kg on Earth, you would weigh a mere 16.5 kg on the Moon. For you imperial folks, imagine you tipped the scales at 200 pounds. Your weight on the Moon would only be 33 pounds.
Find P(3) when µ = 4
there wasn't any prior information.
It was added
====================================================
Explanation:
The Poisson PDF value is given by the function
P(x) = ( e^(-mu)*mu^x )/(x!)
where the exclamation mark indicates a factorial
In this case, mu = 4, so we can update the equation into
P(x) = ( e^(-4)*4^x )/(x!)
Now plug in x = 3 to finish off the problem
P(x) = ( e^(-4)*4^x )/(x!)
P(3) = ( e^(-4)*4^3 )/(3!)
P(3) = 0.1953668148129
P(3) = 0.20
Note: The 'e' is a special constant which is approximately e = 2.718, similar to how pi = 3.14 is a constant used often.
Consider the following equation.
9x + 3y = 6
On a recent Algebra test, Brian was asked to rewrite the equation in slope-intercept form
The slope of the equation is
The y-intercept is
Answer: The slope is -3 and the y- intercept is (0,2)
Step-by-step explanation:
There are 4 squares and 10 circles. What is the simplest ratio of squares to circles ? Pleaseeee answer correctly !!!!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!!!
Answer:
2:5
Step-by-step explanation:
Simplify
75% of 164 is _____________
Answer: 123 IS
Step-by-step explanation:
Answer: 123
Step-by-step explanation:
Don’t know how to do it with out a calculator, but you press 75 the the green 2nd button a then the number 2. Then multiply by 164.
Help me do this! Pleaseeeeeeeeeeee
Answer:
[tex]p=12x-10[/tex]
Step-by-step explanation:
Perimeter is just adding all of the sides' lengths together, so we can put all of them into one big equation and then combine like terms.
[tex]p=x+(2x+5)+(6x-17)+(3x+2)\\p=12x-10[/tex]
Hope this helps!
So what do u think about the answer and will help u get got better
Answer:
what
Step-by-step explanation:
what are you asking
Andrea earned 200 points on a school assignment. Because the
assignment was turned in late, the score was reduced to 20 points.
What was the percentage decrease in the score?
Symbol requiere
Answer:
It was approximately a 9% decrease. (If you need to round to the nearest tenth, 9.1. If you need to round to the nearest hundredth, 9.10).
Step-by-step explanation:
I am going to assume that the question means that Andrea could have earned 220 points on the assignment, but instead because the assignment was late, she was marked down 20 points. (Reduced to 20 points is kind of awkward wording).
Given that, 20 divided by 220 comes out to 0.0909 repeating.
0.09, as a percentage, is 9%. (Again, 0.0909, 9.09%, could be rounded up to 9.1%).
Hope this helps!
Ronnie wants to write an equation to represent portional relationship that has a constant personality equal to 7 25th St. Reds equation Y equals X +7/25 what area is Ronnie making
Answer:
hi i have a question please chat me ok
Step-by-step explanation:
Answer:
C
Step-by-step explanation:
A bar graph titled Internet Users has Region on the x-axis and People (millions) on the y-axis. Asia has 1,000, Europe has 500, North America has 250, and the Middle East has 100.
According to some sources, the African continent has about 170 million Internet users. According to the bar graph, which statement is true?
Africa has fewer users than the Middle East.
Africa has more users than Asia.
Africa has more users than Europe but fewer than Asia.
Africa has more users than the Middle East but fewer users than North America.
Answer:
Its D) Africa has more users than the Middle East but fewer users than North America.
Step-by-step explanation:
correct for Edge2020
Consider the inverse function
f^-1(x) = - sqrt (x-2)
Which conclusions can be drawn about f(x) = x^2 + 2? Select three options.
A.) f(x) has a limited range
B.) f(x) has a restricted domain
C.) f(x) has an x-intercept of (2,0)
D.) f(x) has a maximum at the point (0,2)
E.) f(x) has a y-intercept at the point (0,2)
A, B, E are the right answers!
Answer:
A, B, E
Step-by-step explanation:
The equations shown represent two altitudes of a triangle. y = x+1 and y = −2x−1 What are the coordinates of the orthocenter of the triangle?
Answer:
The coordinates of the orthocenter of the triangle is;
(-2/3,1/3)
Step-by-step explanation:
To find the coordinates of the orthocenter, all we have to do is solve for x and y of the given altitudes
We can get this by solving both equations simultaneously
Simply equate the two y’s
x + 1 = -2x-1
x + 2x = -1-1
3x = -2
x = -2/3
To get y, simply substitute into any of the equation, the value of x
y = -2/3 + 1
y = 1/3