How can you tell from the equations, without graphing, how many solutions the system has?
Answers
Answer:
A system of two equations can be classified as follows: If the slopes are the same but the y-intercepts are different, the system has no solution. If the slopes are different, the system has one solution. If the slopes are the same and the y-intercepts are the same, the system has infinitely many solutions.If a consistent system has an infinite number of solutions, it is dependent . When you graph the equations, both equations represent the same line. If a system has no solution, it is said to be inconsistent . The graphs of the lines do not intersect, so the graphs are parallel and there is no solution.Step-by-step explanation:
Hope this helps !!
Related Questions
A 12-ounce bottle of shampoo lasts Enrique 16 weeks . How long would you expect an 18-ounce bottle of the same brand to let him
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Answer:
12 lasts 16
18 lasts x
x=16• 18/12
x= 24
I really need help, this is probability and statistics, if anyone else is taking this class, please help, it is a unit test study guide.
Answers
Answer:
id like to help but the picture is really blurry so im afraid that i cant. but i know there are others who can!
Step-by-step explanation:
i hope this helps you!
I can't see the picture good
what is 850000+21195=
Answers
Answer: 871195
Step-by-step explanation:
Answer the ones you want to. Answer at least one.
Have no idea how to do this. Please help I beg you.
Answers
Answer:
I will answer one of them! Let's do... number 2.
Step-by-step explanation:
Conjecture: Each number increases by 5 each time.
I’m very smart. My hair is dark. I love to eat honey, insects, and bark.
Answers
Answer:
the answer to the riddle is black bear
Step-by-step explanation:
hope it helps can I have brain for trying? :))) bless u have a great day/evening
Answer:
the other guy is right it's black bear bears love honey and only one bear is black and thats the black bear
Step-by-step explanation:
given f(x)=1/4(5-x)2 what is the value of f(11)
Answers
Answer:
f(x)=1/4(5-x)²
Step-by-step explanation:
f(11)=1/4(5-11)²
1/4(-6)²
1/4(36)
=9
Answer:
=9
Step-by-step explanation:
;0
75 is 12 more than a number k.
Answers
Answer:
So k is 75-12=63
Answer:
63
Step-by-step explanation:
subtract 75 from 12
(2/5)2 × 100 ÷ 23 + [24 ÷ (13 – 5)] =_____
Please help quick!
Thanks!
Answers
Answer:
Step-by-step explanation:
=(2/5)2 ×100÷23+[24÷8]=(2/5)2×100÷23+3=16÷23+3=16/23+3=85/23final result:⇔(2/5)2×100÷23+[24÷(13-5)]=85/23Latoya took a taxi home from her best
friends house. The taxi charged an initial
fee of $3 plus an additional $1.75 per mile.
write an expression that represents the
amount of money Latoya will spend on
the taxi after traveling x amount of
hours.
Answers
Answer:
y=1.75x+3
Step-by-step explanation:
Using slope-intercept form, we can use our initial value of 3, plus our 1.75 per mile, or x, since miles are calculated per hour
Answer:
y=1.75x+3
Step-by-step explanation:
Do you mean x amount of miles? if you do, you would add 3 because 3 is the amount of money that you have to pay no matter how far you go. You would get 1.75x because the number of miles you travel in the taxi, you would have to multiply that number by 1.75 to get the amount of money you would have to pay in addition to the 3 dollars that you would definitely have to pay.
Is mLBAF = mLCEF? Explain.
Than you
Answers
[tex]\huge \bf༆ Answer ༄[/tex]
The Angles BAF and CEF are equal to one another, because they form pair of Alternate Interior Angles ~
So, the Correct choice is ~
Yes, They are Alternate interior Angles[tex]꧁ \large \sf{itz0kaul } \: ꧂[/tex]
Your bill from Acme Supply Company is marked "3/15, net 30." The amount of the bill is $289.95. If you pay the bill within 15 days, how much should you tender?
Answers
Answer:
$8,698.50
Step-by-step explanation:
289.95x30= $8,695.50
help please i dont want to fail
Answers
Please show step by step need it now
Answers
Answer:
x = 6+3y
y = y (any number)
the rest should follow the same steps
Step-by-step explanation:
2x-6y=12 -> divide both sides by 2 (GCF)
x-3y = 6 -> solve for x, because it has 1 as its coefficient, or the lowest coefficent
x = 6+3y
-5x+15y=-30 -> divide both sides by 5
-1x+3y=-6 -> plug in x from previous equation
-(6+3y) + 3y = -6
-6-3y+3y = -6
y = y
solve pls brainliest
Answers
Answer:
a) 45 minutes
b) 2 miles
c) 8 miles per hour
d) 7.5 minutes per mile
Step-by-step explanation:
a) (150/20) x 6 = 45 minutes
b) (20/150)(15) = 2 miles
c) (20/150)(60) = 8 miles per hour
d) 150/20 = 7.5 minutes per mile
20 miles in 150 minutes = 20/150 miles per minute = 2/15 miles per minute
distance/speed = time
6 miles / (2/15) miles per minute = 45 -> 45 minutes
time*speed=distance
15 minutes * 2/15 miles per minute = 2 miles
Her speed, 2/15 is in miles per minute. To convert to miles per hour, you multiply by 60 (60 minutes in an hour). 2/15*60=8 miles per hour
minutes per mile = 150 minutes for 20 miles = 150/20=15/2 minutes per mile
15/2=7.5
7.5 minutes per mile
PLS ANSWER AND I WILL MARK AS BRAINLIST
Answers
Answer:
the correct answer is -8
Step-by-step explanation:
Raise -2 to the power of 3.
Answer:
Step-by-step explanation:
(-2)*(-2)*(-2) = -8
PLEASEEEE HELPPPPPP ASAPPPPP
Answers
Answer:
7.07
Step-by-step explanation:
Angle M is 63 degrees because all 3 angles must add to 180.
Now use the law of sines:
sin(90)/x = sin(63)/6.3
Cross multiply: 6.3 sin (90) = x sin (63)
Divide by sides by sin (63): (6.3 sin (90))/sin (63) = x
Use a calculator: 7.07
Please Help ill give brainliest!!!! Help ASAP
Question: Whose puppy gained weight the slowest? How much did it gain per week?
Answers
Answer:
Camille's puppy gained weight the slowest, because her graph does not increase as rapidly as Amit's graph. The puppy's weight increases by .5 pounds every week.
Step-by-step explanation:
Question 3 Multiple Choice Worth 4 points) (03 02) A fish is 5 feet below the surface of a lake if its position can be recorded as -5 feet what would the position of o representa o the distance above the surface of the lake O the distance below the surface of the lake O the surface of the lake me height of the fish
Answers
Answer:
omg u a real one been lloking for this bing bong
Step-by-step explanation:
Type the correct answer in each box. Use numerals instead of words.
Answers
Step-by-step explanation:
A
let's bring everything on the right hand side back under the square root :
8² = 64
(x³)² = x⁶
so, we get
sqrt(448x^c) = sqrt(64×7×x⁶×x) = sqrt(448×x⁷)
therefore, c = 7
B
similar to A let's bring everything on the right side under the cubic root :
4³ = 64
(x)³ = x³
cubic root(576x^d) = cubic root(64×9×x³×x²) =
= cubic root(576×x⁵)
therefore, d = 5
How to solve for x using the equation: 12 = -4 (- 6x - 3)
Answers
12=-4(-6x-3x)
Divide both sides by 4
12/4=-4(-6x-3x)/4
3=-4(-6x-3x)/4
3=-(-6x-3x)
3=9x
9x/9 = 3/9
Divide both sides by 9
x=1/3
Three cups and four plates cost $18. Five cups cost $10.
All the cups cost the same and all the plates cost the same.
What is the ratio of the cost of a cup to the cost of a plate?
Answers
Answer:
the cups cost 2$ the plates cost 1.50$
Step-by-step explanation:
Need help ASAP! Solve for x. Problem in picture;)
Answers
What exactly is we supposed to do?
I'll answer it after u answer my question
Answer:
x=40
Step-by-step explanation:
46+57=103
180-103=77
180-162=18
180-58=122
122+18=140
140+x=180
x=40
Geometry please help
Answers
Answer:
x = 2.5
Step-by-step explanation:
The sum of the exterior angles of a convex polygon is 360°.
120° +55° +65° +40° +(32x)° = 360°
32x = 80 . . . . . divide by °, subtract 280
x = 2.5 . . . . . . divide by 32
Kenny has a bag of marbles. The bag contains 8 red marbles, 5 blue marbles, and 2 yellow marbles. He will randomly select 1 marble from the bag. What is the probability Kenny will select a blue marble?
Answers
wahts the gcf and lcm of 18 and 30
Answers
18, 36, 54, 72, 90.
30, 60, 90, 120.
Already we notice that 90 is the smallest multiple that is evident in both numbers. So 90 is your LCM.
Now for the GCF, we want to begin by creating a factor tree for 18 and 30. I found one on the internet so it’s easier to view.
When finding the GCF, you want to circle all the prime numbers you have, so in this case, for 18, we have 2 x 3 x 3. They’re all prime.
For 30, we have 2 x 3 x 5. They’re all prime.
If we now circle the numbers that are common in both so we have (2) in 18 and 30, and we have (3) in 18 and 30. We are left with 5 and 3, ignore them for now. Because we managed to circle 2 and 3, if we multiply them together, we get 6. So the GCF of 18 and 30 is 6. And the LCM of 18 and 30 is 90.
Sorry if this sounds confusing, i tried my best.
combine over common denominator 2/3a + 1/3 - 4/a
Answers
Mark as brainliest
Rania receives $40 for her birthday. Then he spends $15 at the movies.
Answers
Answer:
$40-$15= $25 Rania has $25 dollars left
Step-by-step explanation:
Since Rania earned $40 for her birthday and then she spent $15 dollars at the movies, that means that 40-15=25 so she has 25 dollars left.
A town of population 25,000 grows at a constant rate of 1500 people every year. Find the population after 5 years
40,000
32,500
35,000
32,000
Answers
If Ambrea deposits $4000 in the bank and there is a 3% interest rate, how long will it take her to save $7000
Answers
Answer:
I believe the answer is 25 years
Step-by-step explanation:
3% of 4000 is 120
3000 divided by 120 is 25
Answer:
25 years
Step-by-step explanation:
So you have $4000, with a rate of 3% interest.
You want to see how long it takes to save up to $7000.
Do,
3% of $4000 is $120.
It takes a year to get a interest.
And you need $3000 dollars.
Now do 3000 ÷ 120.
You get 25.
Simplify using order of
operations.
53 + 28 : 7-1
Answers
Step-by-step explanation:
53 + 28 =81
7-1=6
81:6
÷3 both side
27:2
Lowest form is 27:2