Polygon Diagonals. The number of diagonals in a polygon = n(n-3)/2, where n is the number of polygon sides. For a convex n-sided polygon, there are n vertices, and from each vertex you can draw n-3 diagonals, so the total number of diagonals that can be drawn is n(n-3).
Terrance and Teresa both work for a book store. Terrance earns $450 per week. Teresa earns $300 per week plus a 6% commission on the total sales of books she sells. In one week, if Teresa sells $2000 worth of books, who will make more money and by how much?
Answer:
Terrence will make 30 more dollars than Teresa :-)
Step-by-step explanation:
gl! <33
A back contains 120 marbles some are red and the rest are black They are 19 red marbles for every black marble How many red marbles are in the back
Answer:
6.3 ?
Step-by-step explanation:
Can someone help me with this?
Two-thirds of the buses in the transit system run on natural gas, and the rest run on diesel. If 738 of the buses run on diesel, how many buses does the transit system have?
Answer:
2214 buses
Step-by-step explanation:
Answer:
there are 1479 bus running in diesel and there are 2214 buses
Greg currently has 30 and receives a new one every 4 months. As a competition, Mark wants to start collecting ties as well. He buys a tie every month until he has the same amount as Greg. How many months until Mark has the same amount? How many ties are there? Hint: use one variable for “# of months” and one for “# of ties”.
9514 1404 393
Answer:
40 months
Step-by-step explanation:
Let t represent the number of months. Then Greg's tie count (g) will be ...
g = 30 + t/4 . . . . . . average rate of tie accumulation is 1/4 tie per month
And Mark's time count (m) will be ...
m = t . . . . . . . . . . . . average rate of tie accumulation is 1 per month
We want these numbers (g, m) to be equal:
g = m
30 +t/4 = t . . . . . substitute the equivalent expressions
30 = 3/4t . . . . . . subtract t/4
40 = t . . . . . . . . . multiply by 4/3
After 40 months, Mark and Greg will have the same amount of ties.
How do you solve linear equations with substitutions?
Answer:
The method of solving "by substitution" works by solving one of the equations (you choose which one) for one of the variables (you choose which one), and then plugging this back into the other equation, "substituting" for the chosen variable and solving for the other. Then you back-solve for the first variable.
Step-by-step explanation:
Solve the following system by substitution.
2x – 3y = –2
4x + y = 24
The idea here is to solve one of the equations for one of the variables, and plug this into the other equation. It does not matter which equation or which variable you pick. There is no right or wrong choice; the answer will be the same, regardless. But — some choices may be better than others.
For instance, in this case, can you see that it would probably be simplest to solve the second equation for "y =", since there is already a y floating around loose in the middle there? I could solve the first equation for either variable, but I'd get fractions, and solving the second equation for x would also give me fractions. It wouldn't be "wrong" to make a different choice, but it would probably be more difficult. Being lazy, I'll solve the second equation for y:
4x + y = 24
y = –4x + 24
Now I'll plug this in ("substitute it") for "y" in the first equation, and solve for x:
2x – 3(–4x + 24) = –2
2x + 12x – 72 = –2
14x = 70
x = 5
HELP ASAP GIVING BRAINLIEST
Which equation can be used to solve for x in the diagram?
A: 3x + 30 + 90=180
B: 3x=30
C: 3x + 30=90
D: 90=3x-30
Answer:
I think it would be 3x=30
Step-by-step explanation:
I think this because 3x is vertical to 30 which would mean that it is equal to 30.
Enter the equation of the line in slope-intercept form.
The line parallel to y = −x that passes through (7, 2.5).
The equation of the line that passes through (7, 2.5) is y = .
2. Enter the equation of the line in slope-intercept form.
The line parallel to y =
7
4
x + 4 that passes through (−8, 0).
The equation of the line that passes through (−8, 0) is y = .
Answer:
y = -x + 9.5
this is the answer to the line parallel to y=-x that passes through (7, 2.5)
2. The angle measures of a triangle are shown in the diagram.
What is the value of X
Answer: The angles inside a triangle are called interior angles. ... The three interior angles in a triangle will always add up to 180°. At each corner the exterior and interior angles are on a straight line, so at each corner these two angles add up to 180°.
Step-by-step explanation:
Sal proves that the angles of an equilateral triangle are all congruent (and therefore they all measure 60°), and conversely, that triangles with all congruent angles are equilateral.
whats 8-4 I would like to know
Answer:
4
Step-by-step explanation:
Answer:
4
(○’ω’○) ↖(^ω^)↗ 囧
What percent represents the part of the model shaded yellow?
A)
33.3%
B)
35%
C)
40%
D)
42.5%
Answer:
a.)
Step-by-step explanation:
Answer:
C
Step-by-step explanation:
There are five bars in total, and yellow takes up two bars.
Hence, the fraction is 2/5.
2/5 = 40%.
Hope this helped!
someone help 9th grade math i will give brainliest
Answer:
I think it may be H. but let me know if i am wrong. if i am right plz mark brainliest
Step-by-step explanation:
27 divided by 3 is 9, 27/3=9 because 27/3 is the same exact thing as 27 divided by 3. So the answer has to be 9
Which object is moving faster based in the graphs presented?
Answer:
A
Step-by-step explanation:
On the graph is shows a increase distance faster than B, when a is at 10 seconds its at 20 meters, and b is at 10 seconds its only at 10 meters, Its A is double the speed of B
Is this true or false?
Answer:
False
Step-by-step explanation:
In ΔNOP, p = 85 inches, ∠O=57° and ∠P=113°. Find the length of o, to the nearest 10th of an inch.
Answer:
77.4
Step-by-step explanation:
Answer:
1.2
Step-by-step explanation:
Delta math :)
Is this correct? What do I have to switch up? (Only if you know)
i dont need the work, just the answers
Answer:
64°
Step-by-step explanation:
There are vertically opposite angles and thus are equal.
Solve this diamond problem to be awarded as brainliest
you plan to open a lemonade stand near where you live. The cost to buy the wood is $60 and the cost to make the lemonade is $3 per cup. You plan to sell each cup pf lemonade for $5. Let x be the number of cups of lemonade sold. Write a function P(x) that represents the total profit you earned from selling x cups of lemonade
Answer:
P(x)=2x-60
Step-by-step explanation:
From the information provided, the function P(x) would indicate that the total profit you earned from selling x cups of lemonade is equal to the result of multiplying the price per cup for the number of cups minus the total cost. This cost is the result of adding up the cost of buying wood plus the cost per cup for the number of cups:
P(x)=5x-(60+3x)
P(x)=5x-60-3x
P(x)=2x-60
According to this, the function is: P(x)=2x-60.
answer this please.
Answer:
2. absolute value of p - q
Explanation:
Because when you calculate distance, you always use absolute value.
Can I get a thx and brainliest?
What’s the answer?
12-3y=30x+6
Answer:
The answer is y=−10x+2
Zoe owns a food truck that sells tacos and burritos. She only has enough supplies to
make 113 tacos or burritos. She sells each taco for $3 and each burrito for $6. Zoe
must sell at least $510 worth of tacos and burritos each day. If 53 tacos were sold,
determine all possible values for the number of burritos that Zoe must sell in order to
meet the requirements. Your answer should be a comma separated list of values. If
there are no possible solutions, submit an empty answer.
Answer:
58.5
Step-by-step explanation:
If you take 53 times 3 = 159
take 510 - 159 = 351
then take 351 divided by 6 = you get 58.5
idk anything about exponent rules can someone help me with this ?
What is the solution to the inequality?
12 < 8 + x
A. x>4
B. x > 20
C. x < 4
D. x< 20
write 3/4 as a decimal
Answer:
0.75
Step-by-step explanation:
Answer:
0.75
Step-by-step explanation:
do 3 divided by 4!
Hun Lee is skateboarding and using energy at a rate of 400 kilocalories per hour. At what rate is Hun Lee using energy in minutes per calorie?
Answer:6.66666 kilocalories per hour
Step-by-step explanation:
Meal A has 170 calories in 3 servings. Meal B has 160 calories
in 4 servings. Which meal has more calories per serving?
Which of the following is the last step in problem solving? A. Understand the problem. B. Check your answers and present the solution. O C. Gather your resources. O D. Come to an answer.
help me please???????
Answer:
Drag -1.6 in between -1.5 and -2 on the left/ negative side of the number line.
8. How many 1/3 pound hamburger patties can be made out of 9 pounds
of ground beef?
Your answer
Answer:
27 or im dumb
Step-by-step explanation:
Answer:
27
Step-by-step explanation:
each pound can make 3 burgers, so 3 x 9 is 27