Answer:
Step-by-step explanation:
x
2
−2x−8=0
x
2
−4x+2x−8=0
x(x−4)+2(x−4)=0
(x+2)(x−4)=0
⟹x=−2,4
You and your friends are in charge of a fundraising dinner. It costs $120 for all the food and supplies. You
plan to charge $8.00 per ticket. You would like to have a profit of at least $600. Your friend said if you sell
75 tickets, you will reach your profit goal. Tell whether your friend is correct or not. Explain your answer in
sentences and then write and solve the inequality that represenst the number of tickets that you need to
sell.
Posted Fri Oct 9, 2020 at 12:26 pm
Answer:
$8.00 per ticket. You would like to have a profit of at least $600.
Step-by-step explanation:
$8.00 per ticket. You would like to have a profit of at least $600.
Answer:
your friend is not correct. You need to sell 90 tickets
Step-by-step explanation:
75 tickets X 8 = 600 ( remember you need 120 extra to pay supplies cost, so you need to sell 90 tickets and the costs is $ 8 per tickets)
let's say now.
90 tickets X 8 = 720.
720- 120= 600
Mr. Collins administered a final exam to his college chemistry class. The results are shown in the following grouped frequency polygon.
According to the data shown in the graph, which of the following statements are correct?
Answer:
Only 3 students scored between 90 and 99.
13 students earned a C
25 Students scored 70 or better on the exam.
There are 40 Students in the date.
Step-by-step explanation:
Evaluate and reduce:
-
- 1+ ( 12 )
Enter the number that belongs in the
green box.
? ]
Answer:
Step-by-step explanation:
Taking LCM, =48
[tex]\frac{-12}{16}[/tex]× [tex]\frac{3}{3}[/tex] + [tex]\frac{11}{12}[/tex]×[tex]\frac{4}{4}[/tex]
=[tex]\frac{-36+44}{48}[/tex]
=8/48
=1/6
What is the weight in pounds of the tank, as in the above case, if the tank itself weighs 20 lbs per ft of height? A. 63,424 lbs B. 42,241 lbs C. 16,151 lbs D. 10,605 lbs.
Helium (He), Neon (Ne), Argon (Ar), Krypton (Kr), Xenon (Xe), and Radon (Rn) have a completely filled outer electron shell and are therefore called inert gases. What do the inert gases have in common?
1.They behave similarly in chemical reactions
2.They have the same number of protons
3.They have the same number of electrons
4.They belong to the same period
Answer:
The answer would be 1.
Answer:
They behave similarly in chemical reactions
Step-by-step explanation:
Because their atomic numbers are different, the elements each have a different number of protons and electrons. They belong to the same group, not the same period.
Annabel wants to buy a $50.00 jacket that is marked 30% off. What is the final cost of the jacket (after the discount)?
Question 1 options:
$15.00
$35.00
No Solution
$65.00
Answer:
$ 35.00
Step-by-step explanation:
50.00 ÷ 10 = 5.00 (10%)
5.00 x 3 = 15.00 ( 30%)
50 - 15 = 35.
Sorry I couldn't explain more, But I hope this helps!
Rename 8 thousand 6 hundred
Answer:
8,600 should be the answer.
I’m confused, what would the answer be? I need it ASAP please
Answer:
It is A
Step-by-step explanation:
plz plz help i promise i will mark brainliest
Answer:
unfortunately I am not available for a few of these weekends and would be grateful
Write another ratio that’s is equilevent too.4:6 and how do u know that your new ratio is equivelant too 4:6
Answer:
8:12
Step-by-step explanation:
Another ratio that is equivalent to 4:6 would be 8:12;
To find another ratio equivalent to another, simply find the multiples of the numbers that make up the ratio.
Using 2 as multiplier;
2 ( 4 : 6) = 8 : 12
I am sure of this because when we reduce both ratio to their lowest term, we get the same value;
4: 6 8: 12
divide by 2 divide by 4
2: 3 2 : 3
PLEASE HELP QUICK WILL GIVE BRAINLIEST
1. If a 10% increase in price leads to a 40% decrease in quantity demanded, what is the value of price
elasticity of demand? show your work
Answer:
-30
Step-by-step explanation:
10 - 30 is not possible they owe
The value of price elasticity of demand is -4.
The price elasticity of demand refers to how a particular good responds as a result of a change in the price. In this case, the price elasticity of demand is calculated as:
= Percentage change in quantity/ Percentage change in price.
Since a 10% increase in price leads to a 40% decrease in quantity demanded, the price elasticity will be:
= - 40% / 10%
= -4.
Read related link on:
https://brainly.com/question/13498928
Please Help Due Soon!
y = 1/3x +b
1 = 1/3(9) +b
1 = 3 +b
subtract 3 from both sides
-2 = b
y = 1/3x - 2Help!!! Please please I don’t know this at all
Answer:
X+y=180, Y=Z, X+Z=180
Step-by-step explanation:
Hope this helps, i remember doing this lesson.
Answer: the two answers that contain 180
Step-by-step explanation:
Elevator 1 in a building moved from ground position to a final position of +16 feet. Elevator 2 in the same building moved from ground to a final position of –25 feet. Which statement best describes the final positions of these two elevators? (1 point) Elevator 1 is 16 feet below ground level, and elevator 2 is 25 feet above ground level. Elevator 1 is 16 feet above ground level, and elevator 2 is 25 feet below ground level. Elevator 1 is 16 feet above ground level, and Elevator 2 is 25 feet below the position of Elevator 1. Elevator 1 is 16 feet below ground level, and Elevator 2 is 25 feet above the position of Elevator 1.
Answer B
Step-by-step explanation:
Answer:
it is BStep-by-step explanation:
i already took the test please like it and give 5 stars Thank youhelp me with ten please
Answer:
H
Step-by-step explanation:
NBA young boy to my lowest - you hurt me deep when I was down on my lowest I needed you ain’t gaf bout me growing
Answer:
The answer is 1/6
Step-by-step explanation:
This is the answer due to the fact that a dice has 6 sides meaning there is a 1 in 6 chance of rolling the different numbers
Answer:
[tex]the \: proberbility \: is \: \frac{2}{6} = \frac{1}{3} [/tex]
Devante invests $4000 in two different accounts. The first account paid 6 %, the second account paid 11 % in interest. At the end of the first year he had earned $320 in interest. How much was in each account?
$
at 6 %
$
at 11 %
Answer:
Let x represent the amount of $ in the 4% account and y in the 2% account.
Then x + y = $4000 (total savings).
Interest at 4% would be x*0.04*1 = 0.04x, and
Interest at 2% would be y*0.02*1 = 0.02y.
Then 0.04x + 0.02y = $140 interest, total.
We must solve this system of linear equations.
Mult. 0.04x + 0.02y = $140 by 100 to remove the fractions:
4x + 2y = $14000 We already know that x + y = $4000, so y = $4000-x.
Then 4x + 2y = $14000 becomes 4x + 2($4000-X) = $56000.
Simplifying, 4x + $8000 - 2x = 14000.
2x = $6000
x = $3000 at 4%
y = $1000 at 2%
i hope it helps :)
Step-by-step explanation:
When 0.3(4x – 8) – 0.5(–2.4x + 4) is simplified, what is the resulting expression?
Answer:
2.4x - 4.4
Step-by-step explanation:
0.3(4x – 8) – 0.5(–2.4x + 4)
1.2x - 2.4 + 1.2x -2
2.4x - 4.4
HELP PLEASE.........
Answer:
Step-by-step explanation:
Before I can answer this, please furthermore evaluate on what the acronyms MAD and IQR stand for, and I will update my answer. Thank you!
Which of these is NOT an example of a property tax?
F) Tax paid on the value of a farm a person owns
G) Tax paid on the value of a piece of land a person owns
H) Tax paid on the value of a piece of furniture a person owns
J) Tax paid on the value of a home a person owns
Answer:
H i think
Step-by-step explanation:
Answer:
H
Step-by-step explanation:
HOPE THIS HELPS
Is 8(3x+2) and 4(6x÷4) equivalent?
Answer:
x= - 8/9
Step-by-step explanation:
In the triangles shown below, AABC is similar to AXYZ. Given that ZA = 50° and
ZB = 100°, what is the measurement of ZZ? * plz help
Answer:
B. 30°
Step-by-step explanation:
Given in the question that triangle ABC and similar to triangle XYZ where ∠A = 50° ,∠B=100° then its true to say by AA { Angle-Angle} similarity ;
if ΔABC ≅ ΔXYZ then
∠A =∠X
∠B = ∠ Y
hence ; ∠C = ∠Z
Finding angle ∠C as ;
180°-{100+50}°
180°-150° = 30°
So angle ∠Z = 30°
pls pls pls help if ur good with angles and sides
Answer:
∆PQR: Equilateral Triangle
∆PRT: Scalene Triangle
∆TQS: Isosceles Triangle
∆QNP: Right Triangle
Step-by-step explanation:
∆PQR is an Equilateral Triangle because all of its angles are equal (60°).
∆PRT is a Scalene Triangle because none of its sides are equal.
The triangle above it is equilateral, and one side length is 14, meaning all of its side lengths are 14.
This makes the top of ∆PRT 14. The hypotenuse is given and it’s 18.
The last side left is clearly shorter than both, meaning none of the sides are equal.
∆TQS is an Isosceles Triangle because 2 angles are equal.
The base angles are both 76°.
∆QNP is a Right Triangle because segment QN and PR are perpendicular, creating two 90° angles on both sides.
For number 10, I suggest using a graphing calculator or desmos to graph the points. (Or you can just add the points but I suggest graphing).
From there, you can count the length of each side.
Segment DE: 9
Segment EF: 8
Segment FD: 10
This makes ∆DEF in number 10 a Scalene Triangle because none of its sides are equal.
For number 11, I also suggest graphing the points and counting the sides.
Segment DE: 7
Segment EF: 9
Segment FD: 7
This makes ∆DEF in number 11 an Isosceles Triangle because 2 of its sides are equal.
Hope this helps! :)
You would like to make a nutritious meal of eggs, edamame, and elbow macaroni. The meal should provide at least 40 g of carbohydrates, at least 20 g of protein, and no more than 50 g of fat. An egg (one serving) contains 2 g of carbohydrates, 17 g of protein, and 14 g of fat. A serving of edamame contains 12 g of carbohydrates, 12 g of protein, and 6 g of fat. A serving of elbow macaroni contains 43 g of carbohydrates, 8 g of protein, and 1 g of fat. An egg costs $2, a serving of edamame costs $5, and a serving of elbow macaroni costs $3. Formulate a linear optimization model that could be used to determine the number of servings of egg, edamame, and elbow macaroni that should be in the meal in order to meet the nutrition requirements at minimal cost. (You don’t need to find the optimal solution to the model you formulate) ======== In your response please - define decision variables with NUN (Name, Unit, Notation) (e.g. Let E be the number of eggs in the meal) Then provide the mathematical model for the LP problem. - objective function - constraints
Answer:
2x + 12y + 43 ≥ 40
17x + 12y + 8z ≥ 20
14x + 6y + z ≤ 50
x ≥ 0
y ≥ 0
z ≥ 0
Step-by-step explanation:
given:
Cost Eggs = $2
Cost of edema = $5
cost of elbow Macaroni = $3
Lets eggs = x,
edamame = y
elbow macaroni = z
TC = 2x+5y+3z
Therefore;
2x + 12y + 43 ≥ 40
17x + 12y + 8z ≥ 20
14x + 6y + z ≤ 50
x ≥ 0
y ≥ 0
z ≥ 0
the first objective is to make sure the total cost is subject to the required nutritional requirements.
So the total cost function (TC) is denoted by the number of servings multiplied for each costs. Eggs cost $2, edamame $5, and macaroni $3.
The problem subjects that each meal contains at least 40g of carbohydrates (this is the condition).
to get this we need to add what each meal component adds to the total, eggs add 2g of carbs, edamame 12g, and macaroni 43g.
Same should be done for protein, we require at least 20 grams of protein, Eggs add 17g, edamame adds 12g, and macaroni adds 8g.
and lastly we don't want more than 50 grams of fat, Eggs add 14g, edamame add 6g and macaroni 1g.
Find the factors of each number.
2. 20
1. 14
Identify the first five multiples for each number.
4. 3
3. 2
6. 5
5. 6
8. 7
7. 8
Help, only right answers get brainliest.
Answer:
slope= 1.5 or 3/2
Answer:
1.5 or 3/2
Step-by-step explanation:
First point: (-1, 2)
Second point: (1, 5)
Using the formula for slope, (5-2)/(1+1) = 3/2
HELP!!! DUE IN 38 MINUTES 11:22 due at 11:59pm pst
Answer:
(1,2)
(-1,2)
(1,-2)
(-1,-2)
Will mark Brainliest, 15 points. Easy question.
The point slope form of the line that passes through
(-4, -3) and (12, 1) is
y - 1 = 1/4 ( x - 12). What is the standard form of the equation for this line?
A). X - 4y = 8
B). X - 4y = 2
C). 4x - y = 8
D). 4x - y = 2
Isoceles and Equalateral Triangles. Need help fast
Answer:
d
Step-by-step explanation:
the angle measures in all equilateral triangles are the same
so divide 180 by 3 and you get 60
Answer: 60
Step-by-step explanation: An acute triangle must have angles that added up equal 180 degrees. The angles are the same value, and 60 times the three angles gives us 180.
A, B, C, or D???? Please help! Thank you!
Answer:
Step-by-step explanation:
either the c or d