how many solutions does the system of equations have?
A) No solution
B) One solution: x = 0, y = 0
C) One solution: x = 1, y = 5
D) Infinite many solutions
Answers
Answer:
no solution
Step-by-step explanation:
a solution would mean a point where the two lines cross. theres no such thing for parallel lines.
but if the lines are the same, they are parallel and cross everywhere, that would give infinite solutions.
if they would cross once, it would mean one solution
A.
explanation::
Related Questions
Question:
A running club keeps track of the number of hours each person has trained for a race and the length of time it takes the person to run the race. A scatter plot is graphed with the x-axis indicating the number of hours a runner has trained and the y-axis indicating the time, in minutes, it took to run the race. The equation y = 60 - 0.5x is used as the line of best fit of the data. What does the slope of the equation represent?
options:
a
Runners will decrease their race time by 2 minutes for every 1 hour they have trained.
b
Runners will increase their race time by 2 minutes for every 1 hour they have trained.
c
Runners will increase their race time by 1 minute for every 2 hours they have trained.
d
Runners will decrease their race time by 1 minute for every 2 hours they have traine
Answers
The solution is, 60 minutes is a good prediction of how long it will take Tom to run the 6 mile race.
What is scatter plot?A scatter plot is a type of plot or mathematical diagram using Cartesian coordinates to display values for typically two variables for a set of data. If the points are coded, one additional variable can be displayed.
Here, we have,
We are given the scatter plot which shows the distance he has run and the time it took for each run.
We are asked to determine a good prediction of how long it will take Tom to run the 6 mile race?
One way to predict the time is by drawing a line that best fits the given data.
As you can see, from the line of best fit, the time corresponding to the 6 miles is around 60 minutes.
Therefore, 60 minutes is a good prediction of how long it will take Tom to run the 6 mile race.
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complete question:
Tom is training for a 6 mile race. The following scatter plot shows the distance he has run and the time it took for each run. What is a good prediction of how long it will take Tom to run the 6 mile race?A) 55 minutes B) 50 minutesC) 60 minutes D) 70 minutes
Find the mean of the set of data. Use a calculator if necessary. (Remember to put the list in numerical order.)
13, 7, 12, 9, 6
Mean is _____.
9.8
10
9.4
8.4
Answers
Answer:
9.4
Step-by-step explanation:
How to find the mean of a data set: Add each number in the set together. Then divide the sum of all of the numbers by how many numbers there are.
Brainliest for the correct answer
Answers
Answer:
4 because you need to multiply by 2.
Step-by-step explanation:
Hope This Helps You!! :) :) :)
Sorry If It's Wrong!!! :) :) :) :) :)
3 / 1.8 = 1.66
4 / 2.4 = 1.66
Therefore
You would do: 2 / 1.66 = 1.2
Your answer is 1.2 :)
What is the area of the figure below?
Answers
explanation: by separating the figure into easier pieces, simple triangles and rectangles, this problem becomes much easier.
by looking the overall length of the figure, we get 7, if you cut off the big rectangle in the middle from that seven, you end up with a diamond with a height of 10 and a length of 4. multiply those together to get the area of the points on either side.
10 x 4 = 40
now looking back at the rectangle, by adding up the heights, you get a height of 16. multiply this with the length of 3 and you get 48.
add the two and you get the total area.
40 + 48 = 88
Answer:
68 in
Step-by-step explanation:
Because the area of the squares is 3 x 3 = 9 and because there are two squares it is 18. The area of the central figure is 50 because i divided it into 4 triangles and 2 rectangles, each rectangle is 15 in and each triangle is 5 in so 15 x 2 = 30, 5 x 4 = 20 and 30 + 20 + 18 = 68
I need to get aleks done on june 3oth
Answers
Answer:
3.2
Step-by-step explanation:
Since it is similar, we know that the sides are gonna be directly proportional so
QR (6.4) / BC (4) = scale factor of 1.6
1.6 x 2 = 3.2
HEY CAN SOMEONE HELP ME FAST I GIBE BRAINLIST
Answers
Answer:
4
Step-by-step explanation:
Add all the "x" 's up.
1(2)=2
2(1)=2
3(1)=3
4(1)=4
5(4)=20
6(1)=6
7(1)=7
you add those up to get 44.
Now add all the individual "x" 's which equal 11.
44/11=4
BRAINLIEST FOR DIS MF!!!!!!!!!!!!!!!!!!!!!!
Answers
A produce manager is deciding whether there is customer demand for expanding the organic food section of her store. How could she obtain the information she needs?
Pls help!!! Ty!
Answers
Answer:
survey everyone who enters the store how often or useful they find it to be
Step-by-step explanation:
PLEASE HELP ON THIS!!
An archaeologist ropes off a dig site using four pieces of rope that have the lenghts of 12 feet, 13 feet, 10 feet, and 11 feet. Name all of the possible four-sided shapes that the archaelogist can enclose with the rope.
HERE ARE THE OPTIONS:
Trapezoid
Parallelogram
Rhombus
Rectangle
Square
Answers
Answer: Okay I might be able to help with this
Step-by-step explanation: Square, Rectangle, Trapezoid and Parallelogram
A storage box has a height of 8 inches, length of 4 inches, and a width of 4 inches. I use cubes with an edge length of 12 inch. If the box is completely full, how many cubes will fit in the storage box?
Answers
Answer:
3
Step-by-step explanation:
8×4=32×4=128
12×3=36
128÷36= 3.5
but u need to put full cubes which would be 3
skskkskskskskkskskssksksk help.
Answers
Answer:
96 m.
Step-by-step explanation:
3 • 2 is used to find the length of the top measurement from the scale we're given, so you multiply 4 by 2 to get it in meters.
4 • 2 = 8.
You do the same to the right side of the bedroom, 3 • 3 = 9, so 4 • 3 = 12.
To find area, you multiply both sides (8 and 12).
8 • 12 = 96.
I. am. tired. of. posting. questions. over. and. over. again. I so serious this is a grade and today is my last day of school and report cards come in next week!!! PLZ HELP MEE. or else i will be grounded for the entire summer.... T~T
Answers
Answer:hi
Step-by-step explanation:plz like and brainliest i am noob I really need this plz
B) m=10w
C) put the bottom as weeks and label it 1 through whatever and put the side as money and label it $10 through whatever and then graph a line going up $10 every week
D) 13 weeks because $128 divided by 10 is 12.8 and round to 13 weeks
A regulation baseball diamond is a square with 90 feet between bases. How far is the second base from the home plate to the nearest foot? Please include work for brainliest.
Answers
Answer:
180
Step-by-step explanation: first base is 90 feet away so 90 x 2 = 180
hope this helps
Please explain. This is for me and a friend too. NO LINKS OR I WILL REPORT YOU!!
Have A Great Day/Night!!! :) :) :) :) :)
How are you? :) :) :) :) :)
Answers
Answer:
Step 2: 47
Step 3: 84
Step 4: 114
Step-by-step explanation:
Step 2: The width is 21, and the length is 36.
Sum is addition, so it would be 21 + 36.
21 + 36 = 47
Step 3: 47 x 2 = 84
Step 4: Perimeter is all around, whilst area is on the inside. The length is 21, so it is 21 + 21. 21 + 21 is 42. The width is 36, so it is 36 + 36, which is 72. 72 + 42 = 114.
Step3: 84
Strp4: 114
Mr. Zeeman received a tax refund. He spent $40 on take-out food for a family dinner and used one-third of the remaining money to buy a new vacuum cleaner. After he deposited half of what was left in his checking account, he still had $80. How much was his tax refund?
Answers
$80•2=160+80=240+40=280
Hope this helps :)
40+1/3=40.3
80+80=160
200+80=280
Select all the expressions that are equal to 3/4
Answers
Answer:
A and B
Step-by-step explanation:
7/20 + 2/5 = 3/4
19/20 - 1/5 = 3/4
3 4/7 - 9/10 = 2 47/70
Using inverse operations is a direct way to solving equations
What is the Golden Rule for solving equations?
Answers
Answer:
Do unto one side of the equation, what you do to the other!
Step-by-step explanation:
An equation is like a balance scale. If we put something on, or take something off of one side, the scale (or equation) is unbalanced. When solving math equations, we must always keep the 'scale' (or equation) balanced so that both sides are ALWAYS equal.
Answer:
Keeping the equation balanced.
Step-by-step explanation:
You need to keep the equation balanced on both sides of the equal sign, like when you need to get rid of the number 4 on one side you have to do the same thing on the other side.
PLS help me :)))) thx
Answers
Answer:
7) 96in²
8)292yd²
Step-by-step explanation:
7)
6×2=12
14×6=84
84+12=96
8)
26×7=182
22×5=110
182+110=292
Answer for the first one (7):
A = 96 square inches
Step-by-step explanation:
to find the unknown sides: 6+6=12
and: 14-12=2
then split into rectangles and find the area for each of them by multiplying the two sides and then add the two rectangles' areas together
Answer for the second image (6):
A= 229 square yards
Step-by-step explanation:
to find the unknown sides: 29-22=7
and: 26-21=5
split into rectangles find area for each of them then add the areas to get the answer
My bad this one !!!!!
Answers
Answer: 164.251207729?
Step-by-step explanation: I have the strongest feeling that I'm totally wrong. But would you divided 34,00 (total amount of adults) by 207 (adults in Television)? You would round it to 164 if rounded to the whole number.
Deeply apologise if this is wrong!
Have a nice day.
Hope I’m right
In the previous lesson, you created SMART goals for yourself to extend from the start of the semester to the end of the semester. This lesson introduced you to the various resources that are part of the course. How can these resources help you reach your goals?
Go back to your SMART goal chart from the previous lesson and alter one of the goals so that it incorporates the use of at least one resource.
Answers
Answer:
Improve your growth attitude, be more proactive, learn to understand yourself, be persistent despite hurdles, learn to accept your limits, learn how to make successful decisions, practice thankfulness, and stay open-minded to new opportunities are some of the ways that SMART goals can assist you.
Step-by-step explanation:
I've done this before :)
Plz help will be marked BRAINLIEST
Answers
Answer:
10 inches
Step-by-step explanation:
A coffee grinder uses a current of 1.20 A and has a resistance of 100 ohms. Calculate the voltage explain
Answers
Answer:
Step-by-step explanation:
I = V / R
Current = (voltage) / (resistance)
Current = (500 V) / (250 ohms)
Current = (500/250) Amperes
Current = 2 Amperes
VOLTAGE = CURRENT * RESISTANCE
1.20A * 100ohms
50 points! Answer AS much as you can, I give Brainliest!
Answers
Answer:
9. y = 8
10. n = 21
11. 44 = v
12. c = 35
Step-by-step explanation:
9. 9y = 72
Divide each side by 9
9y/9 = 72/9
y = 8
10. 3n = 63
Divide each side by 3
3n/3 = 63/3
n = 21
11. 4 = v/11
Multiply each side by 11
4*11 = v/11*11
44 = v
12. c/7 = 5
Multiply each side by 7
c/7*7 = 5*7
c = 35
n=21
v=44
c=35
hope that helps
PLEASE HELP ASAP
Describe, in great detail, how you would graph a line that is in slope-intercept form.
Use y=-3x+ 5 as your example.
Answers
Hi there!
»»————- ★ ————-««
Please see the explanation below.
»»————- ★ ————-««
Explanation:
Recall the meanings of the variables in the slope-intercept equation.
⸻⸻⸻⸻
[tex]\boxed{\text{\underline{Slope Intercept Form:}}}\\\\y=mx+b\\---------------\\\boxed{\text{Key:}}\\\\\rightarrow \text{m - slope}\\\rightarrow \text{b - y - intercept}[/tex]
⸻⸻⸻⸻
We already have one point given, the y-intercept. The y-intercept of a line when given a slope intercept form equation is: [tex](0, b)[/tex]Using the example, we would graph the point (0,5) as our first point.⸻⸻⸻⸻
To graph the second point, we need to understand the meaning of slope. The slope of a line can be remembered as 'rise over run'.The slope for the given equation is -3. This means we would have to go three units down and then one unit right from the y-intercept. Our new point would be (1,2).⸻⸻⸻⸻
The result should be the graph attached.»»————- ★ ————-««
Hope this helps you. I apologize if it’s incorrect.
Please help asap!!.... <33
Answers
Answer:
448
Step-by-step explanation:
I = Prt where I is the interest P is the principle r is the rate and t is the time
I = 400 * (.02) * 6
I = 48
The amount in the account is the interest plus the original amount
400 +48
448
Answer:
$ 448
Step-by-step explanation:
amount that Elena deposit (P) =$ 400
rate of interest (R)=2%
time (T)=6 years
formula to find interest is
Interest = PTR/100
=$400*6*2/100
=$4800/100
=$48
Total amout she receives after 6 years is
Amount = Interest + Principal
=$48 + $400
=$448
Ahmad’s goal is to exercise for a mean of 45 minutes per day for one week. For the first six days of the week, he exercised 35, 40, 37, 42, 45, and 50 minutes. What is the number of minutes Ahmad must exercise on the 7th day to meet his goal for the week?
Answers
Answer:
41.5
Step-by-step explanation:
To find the mean, your supposed to add all the numbers you have and divide by how many numbers there are. In this question your numbers are 35, 40,37,42,45, and 50.
If you add them all up you get 249. Your next step is to divide by how many numbers there are. Since there are 6, your equation will now be 249 divided by 6. Your answer is now 41.5
So on the 7th day Ahmad exercised for 41.5 minutes. If you need to round then maybe 41 minutes.
Answer:
41.5
Step-by-step explanation:
On the 7th day Ahmad exercised for 41.5 minutes and if you want to put it simply its 41 minutes.
HELPPPPP!!!!!!!!!!!!!!!!!!!
Answers
Answer:
I think $10 is the answer
The display at an aquarium has sea stars and eels in a ratio of 4:5. It also has 5/8 as many rockfish as sea stars. There are 40 more wolf eels than rockfish. How many Sea stars are there?
Answers
64 sea stars in the aquarium.
What is Ratio?Ratio is defined as a relationship between two quantities, it is expressed one divided by the other.
Ratio of see stars to eels = S : E = 4:5
E = 5/4(S)
Ratio of rockfish to sea strars = R : S = 5:8
R = 5/8(S)
E = R + 40
5/4(S) = 5/8(S) + 40
Multiply by 8 both the sides
10S = 5S + 320
5S = 320
S = 320/5
S = 64
Hence, 64 sea stars in the aquarium
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Please help I don't understand what to do
Use the following images to answer the question:
a. Write a truth statement about each picture using Euclidean postulates.
b. Write the matching Euclidean postulate.
c. Describe the deductive reasoning you used.
Answers
A sentence (sometimes also called a formula) is simply a string of characters or symbols.
E.g., “sin2 x + cos2 x = 1” is a sentence as is “5 + 4”.
A statement is a sentence that is definitely either true or false.
What are the Euclidean postulates?A straight line segment may be drawn from any given point to any other. A straight line may be extended to any finite length. A circle may be described with any given point as its center and any distance as its radius. All right angles are congruent.
What are the 5 postulates described by Euclid?Euclid's postulates were: Postulate 1: A straight line may be drawn from any one point to any other point. Postulate 2:A terminated line can be produced indefinitely. Postulate 3: A circle can be drawn with any center and radius. Postulate 4: All right angles are equal to one another.
Learn more about Euclidean postulates at
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find the missing side lengths pls help and thanks
Answers
Answer:
missing side =12 cm
Step-by-step explanation:
let missing side be x
take these ratios
15/10=18/x
do cross multiplication
10*18=15*x
180=15x
180/15=x
12=x
Answer:
(a) = 12 :)
Step-by-step explanation:
