Answers
Answer:
Step-by-step explanation:
1) x +y = 3
Subtract 'x' from both sides
y = -x + 3
2) x - 3y = 12
Subtract 'x' form both sides.
-3y = -x + 12
Divide the entire equation by (-3)
[tex]\dfrac{-3y}{-3}=\dfrac{-x}{-3}+\dfrac{12}{-3}\\\\\\y = \dfrac{1}{3}x-4[/tex]
3) 5x + 2y = 10
Subtract 5x from both sides
2y = -5x + 10
Divide the entire equation by 2
[tex]\dfrac{2y}{2}=\dfrac{-5x}{2}+\dfrac{10}{2}\\\\\\y = \dfrac{-5}{2}x + 5[/tex]
4) y = 6x + (1/3)
It is already in y =mx +b form
5)
[tex]y=\dfrac{1}{x}*x-15\\\\\\y = 1-15\\\\y = -14\\\\y=0x -14[/tex]
Related Questions
PLEASE PLEASE HELP PLEASE PLEASE HELP ME PLEASE PLEASE HELP PLEASE PLEASE HELP ME PLEASE PLEASE HELP PLEASE PLEASE HELP ME PLEASE PLEASE HELP PLEASE PLEASE HELP ME PLEASE PLEASE
Answers
Answer:
1. x = 3
2. x = 2 and x= 4
3. y = -8
4. Downward
5. (3,1)
Step-by-step explanation:
Y-intercept: y value at which the value of x=0
X-intercept: x value at which the value of y=0
Vertex: point of change that includes the highest possible value of y (notatable by (x,y))
Downward extension
It took Kelly 5 2/3 hours to fly from City A to City B then it took her another 2 3/5hours to fly from City B toCity C. Kelly flew a total how many hours?
Answers
Answer:
eto na po
Step-by-step explanation:
5 2/3 × 2 3/5 = 5 6/15 answer
the answer is 8 4/15
workings: you can convert the fractions to an improper fraction and add them, it would be easier!
5 2/3 > 17/3 (eq 1)
2 3/5 > 13/5 (eq 2)
after conversion, you must make the denominator the same, the common multiple is 15
take eq 1 multiply by 5 > 85/15
take eq 2 multiply by 3 > 39/15
85/15 + 39/15 = 124/15!!
124/15 convert back to mixed fraction > 8 4/15
hope it helped :D
For a card trick, Barry is using 15 cards from a deck. If each suit he uses has 4 numbered cards and c face cards, which expression shows how many suits he is using?
A.
15 × 4 + c
B.
15 ÷ (4 + c)
C.
15 ÷ 4 + c
D.
15 × (4 + c)
Answers
Answer:
Answer is B
Step-by-step explanation:
Which facts could be applied to simplify this expression? Check all that apply.
5x+3y+(-x)+6z
To add like terms, add the coefficients, not the variables.
First add 5x + x.
The simplified expression is 4x+3y+ 6z.
Only combine terms which contain the same variable.
The simplified expression is 5x+3y +6z.
Answers
Answer:
Step-by-step explanation:
To add like terms, add the coefficients, not the variables.
The simplified expression is 4x+3y+ 6z.
Only combine terms which contain the same variable.
A question on a test provides this graph and asks students to find the speed at which the car travels. Anna incorrectly says that the speed of the car is 1/64 mile per hour.
What is the speed of the car?
What error might Anna have made?
Answers
Answer:
A question on a test provides this graph
You, however, did not provide the graph.
Please repost the question along with the graph.
The speed is the rate of change of distance with respect to time thus the speed according to the graph will be 60 miles per hour so Anna interchanged distance and time by mistake.
What is the rate of change?The rate of change is the change of a quantity over 1 unit of another quantity.
Most of the time the rate of change is the change with respect to time.
For example the speed 3meter/second.
As per the given graph.
Speed = distance traveled / time taken
Speed = 60 / 1 miles per hour
But Anna says 1/60 this means Anna took time taken / distance traveled instant of distance traveled / time taken.
Hence "The speed is the rate of change of distance with respect to time thus the speed according to the graph will be 60 miles per hour so Anna interchanged distance and time by mistake".
To learn more about the rate of change here,
brainly.com/question/12786410
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What is the first 100 diget of pi?
Answers
If 3sin ⁻¹ (2x/1+x²)-4cos⁻¹(1–x²/1+x²)+2tan⁻¹(2x/1–x²)=π/3. Then, x=.
a 1/√3 b1/√2 c 2 d 1
Answers
Answer:
Option A.)
The answer is 1/√3
Step-by-step explanation:
3sin⁻¹ (2x/1 + x²) - 4cos⁻¹ (1 - x²/1 + x²) + 2tan⁻¹ (2x/1 - x²) = π/3
Put x = tanθ
3sin⁻¹ (2tanθ/1 + tan2θ) - 4cos⁻¹ (1 - tan2θ/1 + tan2θ) + 2tan⁻¹ (2tanθ/1 - tan2θ) = π/3
3sin⁻¹ (sin2θ) - 4cos⁻¹ (cos2θ) + 2tan⁻¹ (tan2θ) = π/3
3.2θ - 4.2θ + 2.2θ = π/3
⇒ 2θ = π/3
⇒ θ = π/6
∴ tan-1x = π/6 ⇒ x = tan (π/6) = 1/√3
Thus, The answer is 1/√3
-TheUnknownScientist 72
9.
Write an equation for the translation of y = |x|.
16.5 units right
A. y = |x + 16.5|
B. y = |x| + 16.5
C. y = |x| – 16.5
D. y = |x – 16.5|
Answers
Answer:
D
Step-by-step explanation:
Answer:
D. y = |x – 16.5|
Step-by-step explanation:
I got this answer correct on Gradpoint
write the following number in expanded form: 602.97
and explain
Answers
Answer:
0.07+0.9+2+600 is the expanded form
Evaluate the expression when y=9 and x=7.
8y + x
Answers
Solution:
y = 9, x = 7
8y + x8(9) + 772 + 779;-;
Find the slope of the line passing through the points (-4,7) and (2,-9)
Answers
Answer: The slope is -8/3
Step-by-step explanation: Use the slope formula y2-y1/x2-x1
so -9-7/2-(-4) = -16/6 which can be divided by 2 to get -8/3
can someone help please?
Answers
Answer:
m = -4
Step-by-step explanation:
In y=mx+b m is slope, and b is y-intercept.
In this case m = -4
Hope this helps :)
Find the percent decrease. Round to the nearest percent.
From 90°F to 55°F
Answers
Answer:
39% decrease
Step-by-step explanation:
To find the decrease, subtract 55 from 90
90 - 55 = 35
Divide 35 by the original temperature -
35/90 = 0.388
Multiply 0.388 by 100 to find the percent -
38.8%
Round to the nearest percent -
39%
Select the expression that represents the additive inverse of -12/5.
A. 12/5
B. 5/12
C. -5/12
D. -12/5
Answers
Which equation represents this sentence?
4 times the difference of 10 and a number is equal to 28
o
-
-
4(y – 10) = 28
• 4 (10 - y) = 28
10 – 4y = 28
- 4y - 10 = 28
Answers
Answer:
2nd choice
Step-by-step explanation:
4(10-number)=28
4(10-y)=28
The second equation, 4(10 - y) = 28, represents the given sentence.
What is an equation?Two or more expressions with an equal sign are defined as an equation.
The given sentence is "4 times the difference of 10 and a number is equal to 28".
Let the unknown number be y, then the sentence can be written as:
4(10 - y) = 28
Hence, the second equation, 4(10 - y) = 28, represents the given sentence.
Learn more about equations here:
https://brainly.com/question/10413253
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A private club grew by 7 members each week for 35 weeks. What was the total change in the club's size?
Answers
Answer:
The change is 245 members
Step-by-step explanation:
7x35=245
Pls and thank you, take care, God bless you:))
Answers
Answer:
No movement
Step-by-step explanation:
How do you write 70% as a fraction?
Answers
Answer:
7/10
Step-by-step explanation:
70% is equal to 0.7 in other words 7/10 is the most simple form.
Whta is the area of this figure 3ft 4ft 2ft 1ft 8ft
Answers
The answer is 192. 3 times 4 times 2 times 8 equals 192 (you can skip the one since it doesn't change the process
The sum of the reciprocal of two consecutive integers is -17/72. Find the two integers
Answers
Answer:
Step-by-step explanation:
2x+3
Answer:
8*9=72, I think and if is wrong i'm sorry
Step-by-step explanation:
x = first number
x + 1 = second number
1 / x + 1 / ( x + 1 ) = 17 / 72
[ 1 * ( x + 1 ) + 1 * x ] / [ x * ( x + 1 ) ] = 17 / 72
[ ( x + 1 ) + x ] / [ x * x + x * 1 ) ] = 17 / 72
( 2 x + 1 ) / ( x ^ 2 + x ) = 17 / 72 Multiply both sides by 72
72 * ( 2 x + 1 ) / ( x ^ 2 + x ) = 17
( 72 * 2 x + 72 * 1 ) / ( x ^ 2 + x ) = 17
( 144 x + 72 ) / ( x ^ 2 + x ) = 17 Multiply both sides by x ^ 2 + x
144 x + 72 = 17 * ( x ^ 2 + x )
144 x + 72 = 17 * x ^ 2 + 17 * x
144 x + 72 = 17 x ^ 2 + 17 x Subtract 144 x to both sides
144 x + 72 - 144 x = 17 x ^ 2 + 17 x - 144 x
72 = 17 x ^ 2 - 127 x Subtract 72 to both sides
72 - 72 = 17 x ^ 2 - 127 x - 72
0 = 17 x ^ 2 - 127 x - 72
17 x ^ 2 - 127 x - 72 = 0
The solutions are:
x = - 9 / 17 and x = 8
- 9 / 17 isn't positive integers so x = 8
first number = 8
second number = 8 + 1 = 9
Proof:
1 / x + 1 / ( x + 1 ) =
1 / 8 + 1 / 9 =
( 1 * 9 + 1 * 8 ) / ( 8 * 9 ) =
( 9 + 8 ) / 72 = 17 / 72
A plane flies 15 miles in 20 seconds. How long would it take the plane to cover 30 miles?
Answers
Answer:it would take the plane 40 seconds
Step-by-step explanation:
if you multiply by two then you would be able to get 30
like 15 times 2 and since it’s 15 miles to 20 seconds or 15:20 you would have to multiply by the same number.
A family of 6 members that is made up of Papa, Mama and their 4 children go to the stadium to watch the Peru playoff game. They find 6 available seats together in the same row. How many ways can they be located if parents have to stay to the ends?
Answers
n!/(r!•(n-r)!)
n will be the total number of items, in this case, 6. r is the number of items being chosen, in this case, 4.
n! in this case will be:
6 • (6-1) • (6-2) • (6-3) • (6-4) • (6-5) = 6 • 5 • 4 • 3 • 2 • 1 = 720
r! will be:
4 • (4-1) • (4-2) • (4-3) = 4 • 3 • 2 • 1 = 24
Now to get (n-r)!
(n-r) = 2
(n-r)! = 2 • (2-1) = 2 • 1 = 2
So now we have:
720/(24 • 2) = 720/48 = 15
Then you would multiply by 2 because the parents each have two spots can sit in (the ones on the end) so the answer is 30.
I hope this helps.
Can someone help me out?
Answers
Answer:
I think the answer might be 58 sorry if i'm wrong
Step-by-step explanation:
find the square root of -25
Answers
Answer:
5
Step-by-step explanation:
Answer:
5i
(i represents that the number is "imaginary", because you can't actually have a negative root.)
Step-by-step explanation:
Hope this helps :)
What is the domain of the graph for the data set?
1976
5.027 < domain < 15.485
1908 < domain < 1981
any year in the twentieth century
Answers
our answer choices are a bit different so i'm assuming our data set is as well. but my correct answer was my third option, which was 1908 ≤ domain ≤ 1996, so i'm assuming it will be the third option for you as well.
next time include everything that is needed to answer the question so you can actually get your answer. for this you need a data set.
the data set for me is attached below. it shows the annual consumption of cheese per person in the United States for selected years in the twentieth century.
what does the 5 in 56.13 represent as a decimal
Answers
Answer: 50
Step-by-step explanation:
5 = Fifty
6 = Six
. = decimal
1 = One tenths
3 = Three hundredth
Find the slope of the line using the graph. Write an equation of the line using the graph.
Answers
Answer:
slope: -3equation: y = -3x +5Step-by-step explanation:
The slope formula can be used with the marked points.
m = (y2 -y1)/(x2 -x1)
m = (-1 -2)/(2 -1) = -3/1 = -3
The graph apparently intersects the y-axis at y=5, so the slope-intercept equation is ...
y = mx +b . . . . . . . line with slope m and y-intercept b
y = -3x +5
Each big square below represents one whole.
What percent is represented by the shaded area?
Answers
Answer:
145%. The left one is 100% and then the right is the 45%.
Contempory Math
A person wants to purchase a DVD drive for his laptop computer. Assume that 79% of the drives are made outside the United States. Of the U.S -made drives, 3% are defectives and of the foreign-made drives, 9% are defective. Determine the probability that the drive purchased is U.S made and is not defective.
Answers
Answer:
20 or close to 20
Step-by-step explanation:
please help i will give brainliest to one who answers
You and a friend work at a job, The job paid $20 and you and the friend have to split it evenly, except your friend must make $1.00 more. How much will each of you get?5 sentences, please help i will give brainliest to one who answers
Answers
Answer:
20 ÷ 2 is 10. and since your friend you smoke $1 more they would get 11 dollars and you would get $9
