Answer:
x = 14
Step-by-step explanation:
First put it into slope intercept form
20 = 2x - 8
Move the variable to the left hand side and change its symbol
-2x + 20 = -8
Move the constant to the right hand side and change its symbol
-2x = -8 - 20
Calculate the difference
-2x = -28
Divide both sides of the equation by -2
x = 14
Solution
X = 14
Question 7 of 10
VA
In order to solve the following system of equations by addition, which of the
following could you do before adding the equations so that one variable will
be eliminated when you add them?
4x - 2y=7
3x – 3y = 15
Answer:
Multiply the top equation by -3 and the bottom equation by 2.
A grocery store sells a bag of 8 oranges for $6.24. If Chase spent $8.58 on oranges, how many did he buy?
Answer:
10 oranges
Step-by-step explanation:
Determine the value for x and y
I’ll give brainliest pls help
Answer:
x = 10 and
[tex]y = 2 \sqrt{29} [/tex]
Step-by-step explanation:
see the explanation in attachment.
Question 4 (1 point)
A ball is thrown from a mountain 960 feet high, into the air with an upward velocity of 64 ft/s. When did the ball hit the
ground? And What was the max height it reached?
Answer:
The ball will hit the ground at 10 seconds and its maximum height is 1024 feet.
Step-by-step explanation:
Height of a mountain, h = 90 feet
Upward velocity of a ball, u = 64 ft/s
Its height as a function of time can be written by using the second equation of motion as follows :
[tex]f(x) = -16t^2 + 64t + 960[/tex] .....(1)
When it will hit the ground, f(x) = 0
[tex]-16t^2 + 64t + 960=0\\\\16(-t^2+4t+60)=0\\\\-t^2+4t+60=0[/tex]
It is quadratic equation.
t = -6 s and t = 10 s
Neglecting -6 seconds, the ball will hit the ground at 10 seconds.
For maximum height,
Put f'(x) = 0
[tex]-32t+64=0\\\\\\t=\dfrac{64}{32}\\\\t=2\ s[/tex]
Put t = 2 in equation (1)
[tex]f(2) = -16(2)^2 + 64(2) + 960\\\\=1024\ \text{feet}[/tex]
Hence, the ball will hit the ground at 10 seconds and its maximum height is 1024 feet.
Thanks + BRAINLIST
Need correct answer ASAP
Answer:
O1: b) linear, proportional
O2: a) linear, non-proportional
O3: c) nonlinear
Step-by-step explanation:
Recall that a proportional function can be drawn as a straight line (linear function) through the origin (0,0).
O1 is a proportional function since it is linear and goes through the origin.
O2 has a y-intercept of y = 5; therefore, it is not proportional because it does not go through the origin (0,0), although it is linear.
O3 resembles a quadratic function, which means it's not a linear function (nonlinear).
Will give brainliest
Answer:a,cd,and h
Step-by-step explanation:
Help plz ASAP !!!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
-2
Step-by-step explanation:
Let's solve your equation step-by-step.
−(3v+1)+7(6v+6)=−37
Step 1: Simplify both sides of the equation.
−(3v+1)+7(6v+6)=−37
−3v+−1+(7)(6v)+(7)(6)=−37(Distribute)
−3v+−1+42v+42=−37
(−3v+42v)+(−1+42)=−37(Combine Like Terms)
39v+41=−37
39v+41=−37
Step 2: Subtract 41 from both sides.
39v+41−41=−37−41
39v=−78
Step 3: Divide both sides by 39.
39v
39
=
−78
39
v=−2
Answer:
v=−2
Answer:-2
Step-by-step explanation:
PLEASE HELP ITS ABOUT TO BE DUE
When the value of y = -2, what is the solution to the equation 4(x - 3y) = 6(x - 3y)?
Answer:
x=-1
Step-by-step explanation:
4(x-3(-2))=6(x-3(-2)) => 4(x+6)=6(x+6) => 4x+24=6x+26 => -2=2x => x=-1
The slope of y= 1/2x-7 is___
Answer:
A. Always positive
Step-by-step explanation:
Answer:
The slope of y= 1/2x-7 is always positive.
Step-by-step explanation:
[tex]y = mx + c \\ y = \frac{1}{2} x - 7 \\ \boxed{slope = \frac{1}{2}} \: which \: is \:always \: positive.[/tex]
Alexandra worked 5 hours on Monday, 4.5 hours on Tuesday, and 2.5 hours on Wednesday. Which is closest to the mean number of hours she worked over the three-day period?
5 + 4.5 + 2.5 = 12 ÷ 3 = 4
how I know mean is when you add each together then divide it by how many things you added together so we added 3 things together so just divide your answer by 3.
Michael is buying new shirts and pants for school. He bought shirts for $38 each and pants for $38 each. He purchased nine items and spent a total of $222. How many shirts did he buy?
Answer:
No possible solution
Step-by-step explanation:
Let:
Shirt = x
Pant = y
x + y = 9 - - - - - - - - - (1)
38x + 38y = 222 - - - (2)
From (1):
y = 9 - x
Put y = 9 - x in (2)
38x + 38(9 - x) = 222
38x + 342 - 38x = 222
Based on the Given parameters, we can conclude that the equation does not have a possible solution.
A cell phone normally sells for $500, but it is marked down 30% and you have a coupon for an additional 15% off. How much would it cost you to purchase the cell phone?
Answer:
$275
Step-by-step explanation:
30% + 15%=45%
45% of 500 is 225, because 500 x 0.45=225. Then subtract the discount from the total, 500 - 225, and you get 275
A number went into this machine and 57 came out.
What number went in?
Answer:
47.5
Step-by-step explanation:
47.5=100%
57=120%
The input value is 47.5 when the output is 57.
What is division?The division in mathematics is one kind of operation. In this process, we split the expressions or numbers into the same number of parts.
Given:
When the output is 120%, the input is 100%.
And the output is 1.2 times the input.
So, we have the output 57.
To find the input number:
Use division process,
The required number = 57 /1.2
The required number = 47.5.
Therefore, the number is 47.5.
To learn more about the division;
https://brainly.com/question/13263114
#SPJ2
MJ has 100 cookies he gives 2 each to 9 of his friends then he gets 10 more cookies how many cookies dose he have
Answer:
*does
Step-by-step explanation:
Answer:
92?
Step-by-step explanation:
2x9=18 100-18+10=92
Here is a rectangle ABCD.
A
B
20 cm
30 cm
The length of the rectangle is increased by 10%.
The width of the rectangle is increased by 5%.
Find the percentage increase in the perimeter of the rectangle.
Answer: 8%
Step-by-step explanation:
Original Perimeter of the rectangle is:
= 2 * ( Length * Width)
= 2 * (20 + 30)
= 100 cm
The length increased by 10%. It therefore increased to:
= 30 * ( 1 + 10%)
= 30 * 1.1
= 33 cm
The width increased by 5%. It increased to:
= 20 * ( 1 + 5%)
= 21 cm
New Perimeter is therefore:
= 2 * ( 33 + 21)
= 108 cm
Percentage increase in perimeter is:
= (New perimeter - old) / old perimeter
= (108 - 100) / 100
= 8%
please help me on this!
Answer:
y = 5/4x + 10
Step-by-step explanation:
First, we need to use point-slope form which is:
y - y₁ = m(x - x₁)
Now, we substitute the numbers:
y - 5 = 5/4(x - (-4))
y - 5 = 5/4(x + 4)
y - 5 = 5/4x + 5
y = 5/4x + 10
You can check by substituting the points into the equation:
5 = 5/4(-4) + 10
5 = -5 + 10
5 = 5
Question 7 of 10
What is the solution to this equation
Answer:
x = 4
Step-by-step explanation:
x + 4(x+5) = 40 (Given)
x + 4x + 20 = 40 (Distribute the 4 into the x and 5)
5x + 20 = 40 (Add like terms)
5x = 20 (Subtract 20 on both sides)
x = 4 (Divide 5 on both sides)
HELP PLSPLS QUICKPLSSSSSSSSSSSS
Answer:
Step-by-step explanation:
11/12 - 5/8 = ? Make the denominator the same (multiply the first term by 2 and the second term by 3).
22/24 - 15/24 = ? Just simplify/solve. 22-15=7.
7/24
OPTION A = 7/24
Solve the literal equation for y.
2x – xy = 3
Answer:
Step-by-step explanation:
2x-xy=3
-xy=3-2x
y=3-2x/x
Answer:
[tex]y = - \frac{3}{ x} + 2[/tex]
Step-by-step explanation:
So we want y to be on a side by itself.
2x-xy=3
Subtract 2x from each side
-xy=3-2x
divide each side by -x
[tex]y = \frac{3}{ - x} + 2[/tex]
Hope this helps! If you have any questions on how I got my answer feel free to ask. Stay safe!
In a basketball game, Patrick scores twice as
many points as John. John scores four points
fewer than Charles, and Charles scores three
times as many points as Anthony. If Anthony
scores 5 points, how many points did Patrick
score? Explain your reasoning.
Answer:
15
Step-by-step explanation:
Answer:
He scored 22 points.
Step-by-step explanation:
Anthony scored 5 points. Chareles scored 3 times as much and thats 15. minus 4 is 11. 11 times 2 is 22!
Plz plz I need help plz plz really fast plz plz I will cry if u help me giving 25points
Answer:
[tex]\frac{1}{3}[/tex]
Step-by-step explanation:
5/9(F-32)= -62.1 what is F?
Answer:
a
Step-by-step explanation:
HELLLLLLLLLLLLLLLPPPPPPPPPPPPPPPPPPP
Answer:
B
Step-by-step explanation:
0.625 divided by 0.56
Answer:
1.116071429
Step-by-step explanation:
This is an irrational number, but if you round it, it should be about 1 or 1.12. You can put this in the calculator btw :)
5x+10=5(x+2) what is the answer I’ll give u 85 points
Answer:
All real numbers of x.
Step-by-step explanation:
5x+10=5(x+2) have the exact same equations on both sides.
5x+10=5x+10
If both are graphed, they will intersect each other for every value of x.
Answer:
here's the answer,
Step-by-step explanation:
by solving it we get ;
5x + 10 = 5 (x + 2)
5x + 10 = 5x + 10
hence , L.H.S = R.H.S
proved ..
Write the number 7.4 x 10^5 in standard form.
NEED HELP ASAP! MY GRADES ARE ON THE LINE
Owen needs to print a large document. He printed the first 35 pages earlier, and the printer can print 23 pages per minute. Which of the following solutions are viable that relate the number of minutes the printer is running and the total number of completed pages Owen has printed? Select the two correct answers:
1. A total of 128 pages are printed after 3 minutes.
2. A total of 81 pages are printed after 2 minutes.
3. A total of 138 pages are printed after 6 minutes.
4. A total of 150 pages are printed after 5 minutes
5. A total of 122.5 pages are printed after 4.5 minutes.
Answer:
2. and 4.
Step-by-step explanation:
Answer:
A lot of 128 pages are printed after 3 minutes.
Step-by-step explanation:
Solve the system of equations.
Answer:
x = -2y
Step-by-step explanation:
Step 1. x + 2y = 0
Step 2. x + 0 = -2y
Step 3. x = -2y
Need help please not sure
Answer: #3
Step-by-step explanation:
HELP ASAPPPP PLEASEEEE
Select each expression that has a value of 36 when x =12