Answer:
8x-4y=-4
-3x+4y=5
+
-----------------(adding equation)
5x=9
is a required answer
The estimated distance is 60 miles, but the actual distance is 75 miles. Find the percent error.
Answer:
20
Step-by-step explanation:
75-60=15
15÷75=.20
20 per cent error
Nicola used 25% of the milk she collected from her goats this morning to make cheese. If she has 8.4 quarts of milk left over, how many quarts of milk did she collect this morning?
PLEASE HELP WORTH 35 POINTS
Answer:
11.2
Step-by-step explanation:
The answer is 11.2
11.2*.25=2.8
11.2-2.8=8.4
Hope this helps <3
Edwin has $50.00 in his bank. He starts spending $2.50 each week on snacks at lunch graph it
Answer: 50.00 - 2.50 each week
Answer:
Step-by-step explanation:
First label the x axis as "Time (Weeks)" and y axis as "money in the bank account". The x axis should go by 1. As in the squares being, 1,2,3, etc. The y axis should go by 5's and end at 50. Plant a dot at coordinates (0,50) and continue by subtracting $2.5 per week. So the next coordinates should be (1, 47.5). In the end, there should be $25 left in the account (after using all of the boxes).
If Rachel purchased a prepaid phone card for $25. Long distance calls cost 24 cents a minute using the card. Rachel used her card only once to make a long distance call. If the remaining credit on her card is $19.24 how many minutes did the call last?
Answer:
24 minutes
Step-by-step explanation:
25- 19.24= $5.76 used so....
$5.76/ 0.24cents = 24 minutes
simplify the expression: 4(-4+n) =
What is 1,000=850+0.2p
Write the expression in its simplest form : -3 (7h+1)+6h
Answer:
-15h-3
Step-by-step explanation:
hope this answers an option yk
Answer: =−15h−3
Step-by-step explanation: hope this help
Please help with actual steps, and don’t reply w nonsense just for the points. Thank you !!!
Answer:
1. 24x^6
3. -15^10
5. 90x^5y^6
7. 40x^12y^18
9. 72x^12y^18
add exponents since we're multiplying then multiply the numbers and put the letters in order
The system shown has one solution; convince me that the solution exists
without solving it or graphing it?
2x - y = 5
x + 3y = -8
Answer:
(1, -3)
Step-by-step explanation:
regla de correspondencia de f(x)=5x+4
Answer:
Step-by-step explanation:
Regla why f = 5x +4. Question
Find the slope of the line that passes through the given
points.
1. (-10, -12), (-8,-8), (-6. - 4); (-4, 0)
2. (-4, 2), (0, 1), (4,0), (8, -1)
3. (-7, -7), (0, -8), (7, -9). (14, -10)
4. (-2, 2), (0, 3), (2, 4), (4, 5)
5. (2, -11), (4, -25), (6, -39), (8, –53)
6. (-11, -38), (-5, -14), (1,10), (7, 34)
Find the slope and the y-intercept of the graph of the
linear equation,
7. y = -4x + 6
8. y = -1
9. 4r + y = -1
10. y = 6x – 4
11. -x - 4y + 8 = 0
12. 2.r - 12y + 10 = 0
Answer:
Step-by-step explanation:
4x − 3= −12x + 13
4x + 12x = 13 + 3
16x = 16
x = 1
1)
The slope of the line passing through these points is 2.
2)
The slope of the line passing through these points is -1/4.
3)
The slope of the line passing through these points is -1/7.
4)
The slope of the line passing through these points is 1/2.
5)
The slope of the line passing through these points is -7.
6)
The slope of the line passing through these points is 6.
7)
The slope of y = -4x + 6 is -4 and the y-intercept is 6.
8)
The slope is 0 and the y-intercept is -1.
9)
The slope is -4 and the y-intercept is -1.
10)
The slope of y = 6x - 4 is 6 and the y-intercept is -4.
11)
The slope is -1/4 and the y-intercept is 2.
12)
The slope is 1/6 and the y-intercept is 5/6.
What is an equation of a line?The equation of a line is given by:
y = mx + c
where m is the slope of the line and c is the y-intercept.
Example:
The slope of the line y = 2x + 3 is 2.
The slope of a line that passes through (1, 2) and (2, 3) is 1.
We have,
Slope = (d - b) / (c - a)
Where (a, b) and (c, d) are the two points.
Now,
The slope between (-10, -12) and (-8, -8) is 2.
The slope between (-8, -8) and (-6, -4) is 2.
The slope between (-6, -4) and (-4, 0) is 2.
Therefore,
The slope of the line passing through these points is 2.
The slope between (-4, 2) and (0, 1) is -1/4.
The slope between (0, 1) and (4, 0) is -1/4.
The slope between (4, 0) and (8, -1) is -1/4.
Therefore,
The slope of the line passing through these points is -1/4.
The slope between (-7, -7) and (0, -8) is -1/7.
The slope between (0, -8) and (7, -9) is -1/7.
The slope between (7, -9) and (14, -10) is -1/7.
Therefore,
The slope of the line passing through these points is -1/7.
The slope between (-2, 2) and (0, 3) is 1/2.
The slope between (0, 3) and (2, 4) is 1/2.
The slope between (2, 4) and (4, 5) is 1/2.
Therefore,
The slope of the line passing through these points is 1/2.
The slope between (2, -11) and (4, -25) is -7.
The slope between (4, -25) and (6, -39) is -7.
The slope between (6, -39) and (8, -53) is -7.
Therefore,
The slope of the line passing through these points is -7.
The slope between (-11, -38) and (-5, -14) is 6.
The slope between (-5, -14) and (1, 10) is 8.
The slope between (1, 10) and (7, 34) is 6.
Therefore,
The slope of the line passing through these points is 6.
Now,
The equation in slope intercept form is y = mx + c
where m is the slope of the line and c is the y-intercept.
So,
The slope of y = -4x + 6 is -4 and the y-intercept is 6.
The equation y = -1 represents a horizontal line, so the slope is 0 and the y-intercept is -1.
To find the slope-intercept form, we can rewrite 4r + y = -1 as y = -4r - 1.
Therefore,
The slope is -4 and the y-intercept is -1.
The slope of y = 6x - 4 is 6 and the y-intercept is -4.
To find the slope-intercept form, we can rewrite -x - 4y + 8 = 0 as -4y = x - 8, then divide both sides by -4 to get y = (-1/4)x + 2.
Therefore,
The slope is -1/4 and the y-intercept is 2.
To find the slope-intercept form, we can rewrite 2r - 12y + 10 = 0 as 12y = 2r + 10, then divide both sides by 12 to get y = (1/6)r + 5/6.
Therefore,
The slope is 1/6 and the y-intercept is 5/6.
Thus,
The slope and the y-intercept are given above.
Learn more about equation of a line here:
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help please will give brainliest
Answer:
i think its c not sure
Step-by-step explanation:
A toy rocket lifts off at an initial velocity of 102 feet per second from a height of 10 feet. The height of the rocket can be modeled by the equation h = – 16t2 + 102t + 10, where ‘t' is the time in seconds. When will the rocket hit to the ground?
Answer:
6.47secs
Step-by-step explanation:
Given the height of the rocket modelled by the equation;
h = – 16t^2 + 102t + 10, where ‘t' is the time in seconds
The rocket will hit the ground at h = 0
Substitute into the equation
– 16t^2 + 102t + 10 = 0
Multiply through by -1
16t^2-102t-10 = 0
t = 102±√(102)²-4(16)(-10)/2(16)
t = 102±√10404+640/32
t = 102±√11044/32
t = 102 ±105.09/32
t = 102+105.09/32
t = 207.09/32
t = 6.47secs
Hence it will take 6.47secs for the rocket to hit the ground
4x = -20 Solve for x
Answer:
x = -5
Step-by-step explanation:
x = -20/4 = -5
Answer:
4x=-20
x= -20/4
x= -5
........................
Jada made 6 cups of blueberry jam and divided the jam equally among 4 containers. How much jam went in each container? Have it as a fraction
Answer:the answer is 3/2
Step-by-step explanation:
A fraction is written in the form of a numerator and a denominator where the denominator is greater than the numerator.
Dividing equally 6 cups of jams into 4 containers.
= 1.5 cups / 1 container
The amount of jam in each container is 1.5 cups of jams.
What is a fraction?A fraction is written in the form of a numerator and a denominator where the denominator is greater than the numerator.
Example: 1/2, 1/3 is a fraction.
We have,
Jada made 6 cups of blueberry jam and divided the jam equally among 4 containers.
The amount of jam in each container.
= 6 cups / 4 container
= 1.5 cups / 1 container
This means that in each container there are 1.5 cups of jams.
Thus,
Dividing equally 6 cups of jams into 4 containers.
1.5 cups / 1 container
The amount of jam in each container is 1.5 cups of jams.
Learn more about fractions here:
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What is (0.3)⋅(0.5)?
Answer:
0.15
Step-by-step explanation:
It took 30 minutes to drive 45 miles.
At this rate, how long will it take to drive 15 miles?
Answer:0.43 hours
Step-by-step explanation:
15
miles
35
miles
hour
=
5
⋅
3
5
⋅
7
hours
=
3
7
hours
=
0.43
hours
Help me for brainliest ✅✅✅✅✅✅✅✅
Answer:
y=-2x-3
Step-by-step explanation:
Which graph represents a function?
Answer:
the bottom right one
Step-by-step explanation:
it does not overlap so it is a function. What you can do is drag a pencil over it and if there are not 2 lines touching the pencil thebwhole waybit is a function
Choose the most appropriate name for the function described below.
Your probability of winning the lottery depends on how many tickets you buy.
A. Tickets(probability), or (p)
B. Lottery(tickets), or L(t)
C. Probability(tickets), or P(t)
D. Probability(lottery), or P(I) NEED HELPP
Answer: C
Step-by-step explanation:
please help me. i don't remember how to do this stuff so please explain it.
Answer:
which class are you read in?
actually don't know ans
Step-by-step explanation:
hope it's helpful to you
gud nyt
sweet dreams
Answer:
ncnggvbbjhgujgkgcffjd7jh
What is the equation of the line that has a slope of 3 and goes through the point (-3,-5)?
A.
y = 3x + 4
B.
y = 3x − 14
C.
y = 3x − 4
D.
y = 3x + 12
Answer:
A
Step-by-step explanation:
Answer:
A. y=3x+4
Step-by-step explanation:
(y+5)=3(x+3)
y+5=3x+9
y=3x+9-5
y=3x+4
What is the area of this face?
12in²
15in²
16in²
17in²
What distance is traveled by a car going 80 km/h in a time of 4 hours 30 minutes? (please say the equation you used as well)
Answer:
360 miles
Step-by-step explanation:
(4 x 80) + 40
Can I have brainlyiest
y=-2/3x+1
how do you find the slope and y intercept
Answer:
The slope is -2/3 and the y intercept is 1
Step-by-step explanation:
The slope intercept form of a line is
y = mx+b where m is the slope and b is the y intercept
y = -2/3 x+1
The slope is -2/3 and the y intercept is 1
1. 1/6+1/3=? Your answer
Answer:
1/2
Step-by-step explanation:
What is the Area and Perimeter for tbe rectangle?
length of rectangle = ( 4n-5 )
breadth of rectangle = ( 3n-2)
To find :-Area and perimeter of rectangle.
solution :-by the question ,
We know the area of rectangle = length × breadth
Area = (4n -5) (3n-2)
[tex] = {12n}^{2} - 8n - 15n + 10[/tex]
[tex] = {12n}^{2} - 23n + 10[/tex]
now ,
perimeter = 2 ( length + breadth (
= 2 ( 4n-5 + 3n-2)
= 2 ( 7n-7)
= 14n -14
I hopes this helps.
The estimate obtained from a sample of which size is likely to be closest to the actual parameter value of a population?
Answer:
184
Step-by-step explanation:
Answer: 184
Step-by-step explanation:
A P E X
200:40 simplest form
Answer:
5:1
Step-by-step explanation:
Divide by 40
it's due in a few minutes, ill pay $5 on cashapp, and give you brainliest if your answer is right. just drop ur cash app.. helppp
Calculate the wavelength of a space shuttle with a mass of 2.05 x 107kg traveling at a rate of 7.85 x 103 m/s.
Answer:nunya
Step-by-step explanation: