Answer:
Step-by-step explanation:
-9x+1=-80
first subtract 1 from both sides
-9x=-81
we divide by -9
x=9
simplify (3x+5)(2x+3)
Answer:
5x • 8
Step-by-step explanation:
First you'd switch the numbers around so they can work together.
(3x+2x)(5+3)
Then you add them together.
5x • 8
This would be the equation simplified.
Given a
27 and b
-16, what is – a - b?
Answer:
-11
Step-by-step explanation:
-27-(-16)=-11 or, -27+16=-11
Anthony rode his skateboard for 4 miles in 20 minutes. What was his speed in miles per hour?
A. 5 miles per hour
B. 0.2 miles per hour
C. 12 miles per hour
D. 80 miles per hour
Answer:
Step-by-step explanation:
if he rode 4 miles in 20 minutes
1h=20*3=60 min
4*3=12 miles/hour
Answer:
A. 5 miles per hour.
Step-by-step explanation:
You divide 20 by 4 to get 5, which is per mile, so yea 5 miles per hour
Make a VISUAL model and show your math evidence as you solve for x.
1)
2x - 5 = 9
Answer:
x=7
Step-by-step explanation:
2x-5=9
+5 +5
2x=14
/2 /2
x=7
I don't if this is what you mean by visual, but this is what I got.
All you have to do is write the function!
A software CD can be manufactured for $0.10 each. The development cost to produce the CD is $500,000. The first 200 CDs were used by testers to test the functionality of the software and were not sold.
Write a function, f, for the average cost, in dollars, of a saleable software CD where x is the number of saleable software CDs.
Answer:
The function that represents the average cost in dollars of saleable software CD is given as follows;
f(x) = 500,020/x + 0.10
Step-by-step explanation:
The given parameters are;
The cost of manufacture of each software CD = $0.10
The development cost to produce the CD = $500,000
The number of CDs that are not sold = The first 200 CDs
The total cost of production. 'C', of the the CD is given as follows;
C = $500,000 + $0.10×200 = $500,020
The function, 'f' for the average cost in dollars of a saleable software CD where 'x' is the number of saleable software CDs is given as follows;
f(x) = (C + 0.10·x)/x = C/x + 0.10
∴ f(x) = 500,020/x + 0.10.
hey guys if you can please write it on the paper because i don’t really understand when they type out the steps but if you can though, i need to solve and put the steps or else i’ll get it wrong , it’s due in 10 minutes and i don’t know what to do please help, giving brainlest:((
Answer: w=210
Step-by-step explanation:
Answer:
W = 210
[tex]\frac{210}{6}=35[/tex]
Step-by-step explanation:
just multiply the two numbers:
6 x 35 = 210
so , 210/6 = 35
so basically W = 210
Work out the area of this circle
Answer:
Want the environment here?
A farmer has 890 acres of land. She grows crops on 60% of her land. How many acres DO NOT have crops?
Answer:
It should be 356 acres that don't have crops
what was honesty from thank you ma'am
IF YOU READ IT BEFORE
Answer:
Honesty was respect in Thank you ma'am.
Step-by-step explanation:
2.
11 10 1 2 3
(-3, -2)
(3, 6)
Another math question that I am stuck on
Answer:
The 1st and 3rd are not functions, the 2nd one is a function.
Step-by-step explanation:
If we do the vertical line test, we can see if there are multiple points on that line. The points can not have a repeating x intercept.
An artist is using tiles and boards for a project. A tile has length 1/4 ft and width 1/4 ft. A board has length 1/4 yd and width 1/4 yd. What is the ratio of the length of the tile to the length of the board? What is the ratio of the area of the tile to the area of the board?
Answer:
Ratio of lengths is 1:3
Ratio of areas is 1:9
Step-by-step explanation:
Firstly, we need the units to be same
Mathematically, 1 yard = 3 feet
A length of 1/4 yards = 1/4 * 3 = 3/4 feet
A width of 1/4 yards = 1/4 * 3 = 3/4 feet
The ratio of the length of the tile to the length of the board
that would be;
1/4 : 3/4 = 1: 3
Let’s now work with area
Mathematically, area in both cases is length * width
For the board, we have that;
3/4 * 3/4 = 9/16 square feet
For the tile, we have that;
1/4 * 1/4 = 1/16 square feet
so the ratio of the tile area to the board area will be;
1/16 : 9/16 = 1: 9
Jessica bought 1/2 pound of roast beef and 5/6 pound of ham. Which pairs of fractions are equivalent to the amounts Jessica bought? Mark all that apply.
Group of answer choices
1. 8/16 and 10/16
2. 6/12 and 10/12
3. 5/10 and 8/10
4. 12/24 and 20/24
Of the 245 7th graders, 40% of them are in band. How many 7th graders are in band?
Directions: Find the value of x. Round your answer to the nearest tenth.
Answer:
82
Step-by-step explanation:
There are 156 laptops and desktop computers in a lab. There are 8 more laptops than deskto
computers. What is the total number of desktops in the lab?
Answer:
It would be 70
Step-by-step explanation:
First step: Divide 156 by 2
156 / 2 = 78
Second Step: The half of 156 is 78. Now we have 78 laptops and desktops, and as we know the question says that "there are 8 more laptops than desktops", the next step to follow is to subtract 8 from 78 (Desktops) and add 8 to the 78 (Laptops).
78 - 8 = 70 Desktops
78 + 8 = 86 Laptops
Hope this helps :)
pleasssseeee!!!!!!!!!!!
Answer:
h= the number 7 duh-
Step-by-step explanation:
What's 2/3 written as a fraction with a denominator of 9?
A.2/9
B.3/9
C.6/9
D.9/9
What is the perimeter of triangle ABC?
5
A
B.
0 20 units
4
o 22 units
3
0 24 units
2
o 26 units
1
-5 4
-2 -1
4
2 3
5
-2
-4
с
-5
Answer: 24 Units
Step-by-step explanation:
Got it right on edge!
solve the following equations
15+ 10z=105
Step-by-step explanation:
15+10z=105
10z=105-15
10z=90
z=9
Help me please I'm confused
Answer:
The point (x, y) = (3, -4) represents the solution of the given system of equations.
Please check the attached graph.
Step-by-step explanation:
Given the system of equations
[tex]y\:=\:-\frac{3}{2}x\:-\:3[/tex]
[tex]y\:=\:-x\:-\:1[/tex]
Please check the attached graph of the given system of equations
From the graph:
The red line represents the equation: [tex]y\:=\:-\frac{3}{2}x\:-\:3[/tex]The blue line represents the equation: [tex]y\:=\:-x\:-\:1[/tex]Point of Intersection:
We know that the point of intersection of two lines represents the solution of the system of equations.It is clear from the attached graph that the two lines intersect at the point (-4, 3).
i.e. at x = -4, y = 3
Therefore, the point (x, y) = (3, -4) represents the solution of the given system of equations.
Please check the attached graph.
Polly's veterinarian told her a dog that weighs w kilograms needs 30w+70 calories each day to stay healthy. Polly's dog, Otis, weighs 22 kilograms. How many calories does Otis need each day to stay healthy?
Answer: 730 calories
Step-by-step explanation:
Since the function is given as: 30w+70 and Polly's dog, Otis, weighs 22 kilograms.
The amount of calories that Otis need each day to stay healthy will be:
= 30w + 70
= 30(22) + 70
= 660 + 70
= 730 calories
find the equation in slope-intercept form of the line that passes through the points (-3,4) & (2, -1)
Answer:
y=-x+`1
Step-by-step explanation:
Just follow the slope-intercept form formula-
Formula: y=mx+b
Key:
y = y-coordinate
m = slope
x = x-coordinate
b = y-intercept
Let me know if you have any questions, hope this helps! (:
What is cos 0 + sin 90 ?
Answer:
[tex] \cos(0) + \sin(90) [/tex]
[tex]1 + 1 = 2[/tex]
Answer:
2
Step-by-step explanation:
[tex] \cos(0) = 1[/tex] and [tex] \sin(90) = 1[/tex]
So,
[tex] \cos(0) + \sin(90) = 1 + 1 = 2[/tex]
QUESTION 12
A person pays $2 to play a game using only the hearts from a deck of cards (2-10,J,Q,K, ace). If the person draws a number card (2-10).
they lose. If the player draws a face card ( Q,K), they win $3. If the player draws an ace, they win $io. Find the expected value. Is the
game fair?
Answer:
the value would be 6 and yes the game is fair
150% of what number is 49?
Answer:
32 2/6
Step-by-step explanation:
150% of what number is 49
Can be written as;
1.5x = 49
( To find the percent of a number, one has to move the decimal back two spaces on the percent ( because a percent is out of 100), and then multiply by the number)
Use inverse operations to solve;
1.5x = 49
/1.5 /1.5
x = 32 2/3
Need help ASAP
Which of the following x-values are approximate solutions to the equation f (x) = g(x) ? Select ALL that apply.
A) x = -3.3
B) x = -2
C) x = 2
D) x = 5.2
E) x = 6.5
Answer:
A and D
Step-by-step explanation:
I could be wrong but the solutions are the points of intersection between the two functions. By looking at it. I can see that its about -3.3 and 5.2
Hope this helps!
The x-values are approximate solutions to the equation f (x) = g(x) that is -3.3 thus the correct option is A.
What is a function?Function is a type of relation, or rule, that maps one input to specific single output.,Functions which repeats their values after a fixed interval, are called periodic function.
WE have been given the function x as
f (x) = g(x)
Therefore,
3(17x-6.5) = 108
Then Divide each side by 3;
3/3(17x-6.5) = -108/3
17x - 6.5 = -36
Add 6.5 to each side;
17x-6.5+6.5 = -36+6.5
17x = 42.5
Divide by 17;
17x/17 = -42.5/17
x = -3.3
The x-values are approximate solutions to the equation f (x) = g(x) that is -3.3 thus the correct option is A.
Learn more about function here:
https://brainly.com/question/2253924
#SPJ5
What is the solution to the system shown?
x - y = 12
x + y = 20
A.
x = 3, y = -7
B.
x = 4, y = -7
C.
x = 15, y = 3
D.
x = 16, y = 4
Answer:d
Step-by-step explanation:
16-4=12 and 16+4=20
please help
solve log(3x+2)=3
Answer:
x=334
Step-by-step explanation:
Answer:
0.33 or 1/3
Step-by-step explanation:
1/3=0.33333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333...
It goes on and on(infinite)
is 5x - 7 + 3x and 3x = 7 + 5x equivalent
Answer:No
Step-by-step explanation: