Ned and Sam are playing a game. Ned has -3 points. Sam has -8 points. How many more points does Ned have than Sam? Please provide an equation and an answer.
Answers
Answer:
5 points
Step-by-step explanation:
Subtracting their scores, we get (-3)-(-8)=5
Related Questions
Fill in the blanks below in order to justify whether or not the mapping shown
represents a function.
Set A
co
5
H
The mapping diagram above|
Set B
✓in
-2
3
O
7
શ function since
where there
Answers
Answer:
It is not a function
Step-by-step explanation:
A function is a rule from x to y that applies to all elements of x. Every element of x should have one image only.
Here, element "1" has two images 3 and 7. Therefore it's not a function.
Write a sentence of the form “–––––––––––––– is a function of –––––––.”
Type your response in the space below.
Answers
"Distance traveled is a function of time." In the context of motion or travel, the distance traveled is often dependent on the amount of time that has passed.
Distance is a fundamental concept in physics and mathematics that measures the extent or length between two points.
It represents the amount of ground covered or space traveled. When we say that distance is a function of various factors, it means that different variables or parameters can influence the distance traveled.
In the context of motion or travel, the distance traveled is often dependent on the amount of time that has passed.
The sentence "Distance traveled is a function of time" expresses this relationship, indicating that the distance traveled can be determined or calculated based on the value of time.
Thus, it implies that as time changes, the corresponding distance traveled also changes, establishing a functional relationship between the two variables.
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4.4 times 2.727 km Answer with explanation
Answers
Answer:
12 km
Step-by-step explanation:
4.4 * 2.727 km = 11.9988 ( using a calculator)
since the smallest factor (4.4) has only 2 significant digits , your answer should be rounded to only 2 S.D. so = 12 km
You exercise for 4 minutes to burn off 60 calories. If you exercise for 60 minutes and burn off 900 calories, is that correct?
Answers
Answer:
4 minutes 60 calories
60 minutes ?
Using cross-multiplication, you can find the solution.
4x = 3600
x = 900
Yes its true, you can burn 900 calories in 4 minutes
The two rational numbers that lie between 5 and 4 are
Answers
There are infinitely many rational numbers between 5 and 4.
the All-star appliance shop sold 10 refrigerators, 8 ranges, 12 freezers, 12 washing machines, and 8 clothes dryers during January. Freezers made up what part of the appliances sold in January?
Answers
Answer:
Freezers made up \(\frac{6}{25}\) = 24% of the appliances sold in January.
Step-by-step explanation:
We have that:
10 + 8 + 12 + 12 + 8 = 50 parts were sold in January.
Freezers made up what part of the appliances sold in January?
12 of those were freezers, so:
\(\frac{12}{50} = \frac{6}{25} = 0.24\)
Freezers made up \(\frac{6}{25}\) = 24% of the appliances sold in January.
The population of a city was 10,000 in 2010. The population increase at an annual rate of 2.5% per year. Is the growth model function that represents the population of the city linear?
Answers
Answer:
The growth model that represents the population of this city is not linear--it is exponential:
\(f(t) = 10000( {1.025}^{t} )\)
\(t = 0 \: represents \: 2010\)
Pls help me with this
Answers
Answer:
Step-by-step explanation:
Remark
They are alternate interior angles and therefore equal.
Solution
8x - 10 = 3x + 90 Subtract 3x from both sides
8x - 3x - 10 = 90 Combine the left
5x - 10 = 90 Add 10 to both sides
5x = 90 + 10
5x = 100 Divide by 5
x = 20
================
That isn't the answer. You need 3x + 90
<B = 3*20 + 90
<B = 60 + 90
<B = 150
Ellen wishes to mix candy worth $1.45 per pound with candy worth $3.74 per pound to form 27 pounds of a mixture worth $3.06 per pound. How many pounds of the more expensive candy should she use?
Answers
9514 1404 393
Answer:
18.98 pounds
Step-by-step explanation:
Let 'e' represent the number of pounds of expensive candy Ellen should use. Then 27-e is the number of pounds of less expensive candy. Her total cost is ...
1.45(27 -e) +3.74e = 27(3.06)
(3.74 -1.45)e = 27(3.06 -1.45) . . . . subtract 1.45(27)
e = 27(3.06 -1.45)/(3.74 -1.45) = 27(1.61/2.29) ≈ 18.98
Ellen should use about 18.98 pounds of the expensive candy.
_____
Additional comment
We showed the solution this way because it is the generic solution to any mix problem. The fraction of the mix that is the highest-value contributor is the ratio of the difference between the mix value and the lowest contributor to the difference between contributors. Here, that fraction is ...
(3.06 -1.45)/(3.74 -1.45) = (1.61/2.29)
Convert the following fractions to decimals. 1/8 1/9 2/3 4/7 3/10 5/3 9/5 5/6
Answers
Answer:
1/8 = 0.125
1/9 = 0.1
2/3 = 0.6
4/7 = 0. 571428
3/10 = 0.3
5/3 = 1.6
9/5 = 1.8
5/6 = 0.83
write the equation of the parabola with the given vertex (-3,3) and focus (-3,4)
Answers
A motorboat travels 189 kilometers in hours going upstream and 693 kilometers in 7 hours going downstream. What is the rate of the boat in still water and what is the rate of the current?
Rate of the boat in still water: km/h
Rate of the current: km/h
Answers
Answer:
rate of the boat in still water: 81 km/h
rate of the current: 18 km/h
Step-by-step explanation:
Rate of the boat in still water:81 km/h
Rate of the current: 18km/h
What is speed?Speed tells us how fast something or someone is travelling. You can find the average speed of an object if you know the distance travelled and the time it took. The formula for speed is speed = distance ÷ time.
Given
b= speed of boat in still water c=speed of current
"boat travels 693 kilometers in 7 hours going downstream" Going downstream, the boat travels b+c km per hour. b+c km/hr = 693 km/7hr = 99 km/hr
b+c=99
"boat travels 189 kilometers in 3 hours going upstream" Going upstream, the boat travels b-c km per hour. b-c km/hr = 189 km/3hr = 63 km/hrb-c=63
Add the equations together to eliminate the c terms: b+c=99 b-c=63 2b = 162, therefore, b= 81
b+c= 99, so c = 99 - b= 18
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Three potential employees took an aptitude test. Each person took a different version of the test. The scores are reported below. Kerri got a score of 80.8; this version has a mean of 62.1 and a standard deviation of 11. Cade got a score of 286.4; this version has a mean of 271 and a standard deviation of 22. Vincent got a score of 7.9; this version has a mean of 7.2 and a standard deviation of 0.7. If the company has only one position to fill and prefers to fill it with the applicant who performed best on the aptitude test, which of the applicants should be offered the job
Answers
Answer:
Kerri
calculate z scores z= (x - xbar)/stdev
Kerri = 1.7
Cade = .7
Vincent = 1
Step-by-step explanation:
Jamison wants to save up his money to buy a car. His parents said they will match what he saves, up to $2000. Jamison mows lawns in the summer, and shovels snow in the winter. He charges $25 per lawn, and $20 per driveway. Let X represent the amount of money that Jamison can save so that his parents will match the amount. Let L represent the number of lawns he mows , and T represent the number of driveways he shovels. Which of the following inequalities need to be part of the system? Select all that apply.
25L + 20d < x
x (greater than or equal to) 2000
20L+25d=x
25L+20d=x
x(less that or equal to)2000
Answers
Answer:
25l+20d=x and x ≤ 2000 needs to be part of the system.
Step-by-step explanation:
Given that:
Amount charged per lawn = $25
Number of lawns = l
Amount charged per driveway = $20
Number of driveways = d
Amount saved by Jamison = x
\(25l+20d=x\)
Amount given by parents = upto $2000
It means the parents will not give more money than $2000, therefore, we will use less than equal to inequality
x ≤ 2000
Hence,
25l+20d=x and x ≤ 2000 needs to be part of the system.
construct a venn diagram illustrating the sets below.
U = {1,2,3,4,5,6,7,8,9}
Y={1,3,4,6}
Z={1,4,8}
Change the Venn diagram if needed
Answers
The Venn Diagram for these given sets is graphed at the end of the answer.
What is a Venn Diagram?A Venn Diagram uses circles to show if elements belong to one set, or multiple sets, in the intersection.
For this problem, we have that:
Elements 1 and 4 belong to the intersection of sets Y and Z.Elements 3 and 6 belong only to set Y.Element 8 belongs only to set Z.The remaining elements belong only to the universal set U.The Venn Diagram showing this is inserted at the end of the answer. There are a two erasers marks because of typing mistakes on my part.
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Answer:
Step-by-step explanation:
Hey can anyone help me understand how to graph this?
Answers
Answer:
Step-by-step explanation:
?
solve the following inequality for z. write your answer in simplest form. -9-(2z-7)>-2z-6-5z
Answers
Answer:
z > -4/5
Step-by-step explanation:
-9 - (2z - 7) > -2z - 6 - 5z
Get rid of the parenthesis
*There is the number one in front of the parenthesis.-9 - 2z + 7 > -2z - 6 - 5z
Combine like terms:
-2 - 2z > -7z - 6
+2 > +2
Add 2 to both sides.
-2z > -7z - 4
+7z > +7z
Add 7 to both sides.
5z > -4
Divide both sides by 5 to get z.
z > -4/5
The sign stays the same unless you divide by a negative number---------------------------------
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What is the solution if the two lines are parallel lines? Please HELP!
Answers
Using the integers −9 to 9 at most one time each, place a digit in each box ( ___ , ____) and. ( ___ , ____) to create endpoints for the longest possible line segment both numerically and graphically whose midpoint is (1, 3)
Answers
Using the integers −9 to 9 at most one time each, place a digit in each box (1, 3) and (9, 3) or (-9, 3) to create endpoints for the longest possible line segment both numerically and graphically whose midpoint is (1, 3).
To find the endpoints of the longest possible line segment with midpoint (1, 3), we can use the midpoint formula, which states that the midpoint of a line segment with endpoints (x₁, y₁) and (x₂, y₂) is ((x₁+x₂)/2, (y₁+y₂)/2).
In this case, we know the midpoint is (1, 3), so we can set up two equations using the variables for the endpoints (x and y) and solve for them:
(x₁ + x₂)/2 = 1
(y₁ + y₂)/2 = 3
We also know that the line segment must be as long as possible, so the endpoints should be as far away from each other as possible. To maximize the distance between the endpoints, we can choose one endpoint to be -9 and the other endpoint to be 9. This gives us:
(x₁ + x₂)/2 = 1 => x₁ + x₂ = 2
(y₁ + y₂)/2 = 3 => y₁ + y₂ = 6
Now we can solve for x₁ and y₁, since x₂ and y₂ will be 2-x₁ and 6-y₁ respectively:
x₁ + (2-x₁) = 2 => x₁ = 1
y₁ + (6-y₁) = 6 => y₁ = 3
So the endpoints of the longest possible line segment with midpoint (1, 3) are (1, 3) and (9, 3) or (-9, 3), and its length is 8 units.
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QUICK!!
Convert r = 6cscθ to rectangular form.
Answers
Answer:
x2+y2−6y=0
Step-by-step explanation:
30 points On a certain hole, a golfer knows that he has a 70% chance of reaching the green (putting surface) in one stroke, 20% in two strokes, 8% in three, and 2% in four or more. If he reaches the green on his first stroke, he has an 80% chance of putting the golf ball in the cup on his second stroke. If he does not reach the green on his first stroke, then he has a 30% chance of putting the golf ball in the cup on his second stroke. What is the probability that the golfer will reach the green in one stroke and put the ball in the cup on his second stroke?
0.09
0.21
0.56
0.80
Answers
Answer:
.56
Step-by-step explanation:
Which best describes the solution for the system of linear equations graphed below?
-6 -5 -4 -3 -2 -1 0
1 2 3 4 5 6
- 2
A (0,5) only
B (1,0) only
C no solution
D infinitely many solutions
Answers
Answer:
D is correct Answer. Parallel line on graph means infinity many solutions.
Identify the next three numbers in this sequence : 2,8,4,16,12
Answers
Answer:
18, 14, 20
Step-by-step explanation:
Answer:
I got A 18,14, and 20
Step-by-step explanation:
PLZ CORRECT ME IF I AM WRONG PLZ AND THANK YOU
i need some help with this one
Answers
Answer:
the first two answers you put are correct but the last one you selected is incoorect, but the one that says segment AB is congruent to segment CB is correct
Step-by-step explanation:
so the correct answers are
A. segment AD is congruent to segment DC
C. angle ADE is congruent to angle CDE
D. segment AB is congruent to segment CB
HOPE THIS HELPS!
Using Euler's formula, how many
edges does a polyhedron with 20
faces and 12 vertices have?
[?] edges
Euler's Formula: F + V = E + 2
Answers
32 = E +2
E = 30
I need help with math
Answers
Question:
Saleem wants to create a table of ratios that are equivalent to 2/3. he includes the ratios 4/5 and 5/6. are these ratios equivalent to 2/3? explain ur reasoning
answer:
In order to determine if the given fractions are equivalent to 2/3, it is necessary to simplify each fraction, and if the result is the same, the fraction is equivalent.
Proceed as follow:
4/5 it is not possible to simplify this fraction
5/6 it is not possible ti smiplfy this fraction
As you can notice, it is not possible to simplify the given fractions in such a way you can obtain from them the fraction 2/3.
Hence, the given fractions are not equivalent to 2/3.
if you take away 25 from a number you will be left with two and halftimes 30. what is the number?
Answers
If you take away 25 from (100) you get 75.
70 also equals 2.5*30
An Earth Day event will cost $15 for three people to attend. If there are four people attending, how much will the Earth Day fun event cost?
Answers
please I need it now will give brainliest
Leon verified that the side lengths 21, 28, 35 form a Pythagorean triple using this procedure.
Step 1: Find the greatest common factor of the given lengths: 7
Step 2: Divide the given lengths by the greatest common factor: 3, 4, 5
Step 3: Verify that the lengths found in step 2 form a Pythagorean triple: 3 squared + 4 squared = 9 + 16 = 25 = 5 squared
Leon states that 21, 28, 35 is a Pythagorean triple because the lengths found in step 2 form a Pythagorean triple. Which explains whether or not Leon is correct?
Yes, multiplying every length of a Pythagorean triple by the same whole number results in a Pythagorean triple.
Yes, any set of lengths with a common factor is a Pythagorean triple.
No, the lengths of Pythagorean triples cannot have any common factors.
No, the given side lengths can form a Pythagorean triple even if the lengths found in step 2 do not.
Answers
Answer:
(a) Yes, multiplying every length of a Pythagorean triple by the same whole number results in a Pythagorean triple.
Step-by-step explanation:
In general, scaling the numbers involved in a relationship does not change their relationship.
If we have ...
a² +b² = c²
and we scale each number by a factor of k, then we get ...
(ka)² +(kb)² = (kc)²
k²a² +k²b² = k²c²
k²(a² +b²) = k²c² . . . . same result as multiplying the original relation by k²
Leon is correct that multiplying a Pythagorean triple by a constant gives another Pythagorean triple.
45 points!!
solve question 9
Answers
Answer:
answer
A) 11.7²+X.6²
B) 7²+10² 0²