Answer:
x = 12
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDASEquality PropertiesStep-by-step explanation:
Step 1: Define equation
5x + 18 = 7x - 6
Step 2: Solve for x
Subtract 5x on both sides: 18 = 2x - 6Add 6 to both sides: 24 = 2xDivide both sides by 2: 12 = xRewrite: x = 12Step 3: Check
Plug in x to verify it's a solution.
Substitute: 5(12) + 18 = 7(12) - 6Multiply: 60 + 18 = 84 - 6Add/Subtract: 78 = 78And we have our final answer!
Help me please...
...
Answer:
The mistake is in the 1st to 2nd step
They did not distribute 4(7-13).
If they distributed properly, it would be 28-52 instead of 28-13.
Step-by-step explanation:
How do you do this
I don’t get it
Answer:
x= 65 z= 38 y= 77
Step-by-step explanation:
x=65° (opposite angles are equal)
z= 180°-[71+71 (bc the other side is also equal to 71)]
z= 180°-142°=38°
y= 180 - [sum of angle x (65°) and angle z (38°)]
y= 180 - 103= 77°
to make sure ur answer is correct the sum of angle x, y and z MUST = 180
lets check:
65° + 38° + 77° = 180°
:)
I am having trouble figuring out this question, repost again...
A mountain climber ascends a mountain to its peak. The peak is 12,740 ft bone sea level. The climber then descends 200 ft to meet a fellow climber. Find the climber’s elevation above sea level after meeting the other climber.
Thank you I appreciate it
solve: 12/35 − 5/21 ASAP im not smart
Answer: 11/105
Step-by-step explanation:
Y=(m-2)(m-4)
Find the Y intercept
Please help!!!
Answer:
y - intercept = 8
Step-by-step explanation:
Given
y = (m - 2)(m - 4)
To find the y- intercept, let m = 0 in the equation and solve for y, that is
y = (0 - 2)(0 - 4)
= (- 2)(- 4)
= 8 ← y- intercept or in coordinate form as (0, 8 )
what is the midpoint of (10,5) and (-4,-7)
Answer:
(3, -1)
Step-by-step explanation:
10-4 = 6 -> 6/2=3
5-7 = -2 -> -2/2= -1
Answer: The mid point is (3,-1)
Step-by-step explanation:
2/3(6c+4)-(8c-5)
No spaces in your answer.
Do not change improper fractions to mixed numbers, type them as improper fractions in simplest form.
Answer:
Your answer is: [tex]-4c+23/3[/tex]
Simplify the expression.
Step-by-step explanation:
Hope this helped : )
What’s the value of y ?
which expression are equal to 10^5
Answer: 10* 10* 10* 10* 10
Step-by-step explanation:
10* 10* 10* 10* 10 = 100,000
f(x) = -3x2 + 6x – 7
Greatest value
Answer:
Step-by-step explanation:
f(x)=-3x²+6x-7
=-3(x²-2x+1-1)-7
=-3(x²-2x+1)+3-7
=-3(x-1)²-4
Greatest value=-4 and is obtained at x=1
is y=-2/5x inverse or direct variation
Answer:
direct
Step-by-step explanation:
The standard form of an equation representing direct variation is
y = kx ← k is the constant of variation
The standard form of an equation representing inverse variation is
y = [tex]\frac{k}{x}[/tex] ← k is the constant of variation
y = - [tex]\frac{2}{5}[/tex] x ← represents direct variation with k = - [tex]\frac{2}{5}[/tex]
What is the slope of the line through (-7,-8)(−7,−8)left parenthesis, minus, 7, comma, minus, 8, right parenthesis and (0,4)(0,4)left parenthesis, 0, comma, 4, right parenthesis? Choose 1 answer:
Answer:
slope = [tex]\frac{12}{7}[/tex]
Step-by-step explanation:
Calculate the slope m using the slope formula
m = [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]
with (x₁, y₁ ) = (- 7, - 8) and (x₂, y₂ ) = (0, 4)
m = [tex]\frac{4+8}{0+7}[/tex] = [tex]\frac{12}{7}[/tex]
What is the value of x in the equation below?
6 (x minus 8) = 72
Which correction should Liliana make?
Please Answer
2.25 divided by 32.50
Answer:
0.6923076923 or 0.692
Mai thinks of a secret number. She says that her secret number is more than 11 units away from 50. Write an absolute- value inequality that gives the possible values of Mai's number.
Given:
Secret number is more than 11 units away from 50.
To find:
The absolute- value inequality that gives the possible values of Mai's number.
Solution:
Let the secret number be x.
Secret number is more than 11 units away from 50. It may be less than 50 or more than 50.
Case 1: If x<50, then [tex]50-x>11[/tex]
Case 2: If x>50, then [tex]x-50>11[/tex]
It means the absolute difference between secret number and 50 is greater than 11.
[tex]|x-50|>11[/tex]
Therefore, the required inequality is [tex]|x-50|>11[/tex].
The following box plot shows the number of years during which 40 schools have participated in an interschool swimming meet:
see attached image below ♥
At least how many schools have participated for more than 1 year and less than 6 years?
4 schools
8 schools
10 schools
20 schools
Answer:
I possibly think it is either 8 or 10 but I am sorry if I am wrong.
Write an equation of the line that passes through (0, 4) and (0, -3)
Answer: Slope is undefined. x=0
slope calculation: -3-4/0-0 = -7/0 and anything divided by 0 is undefined
the x value in the coordinates is 0 so it’s x=0 line.
vertical lines always have undefined slopes
Answer:
[tex]x=0[/tex]
Step-by-step explanation:
So first of all we need the slope of the line we are trying to findWe get the slope by using the following formula [tex]slope=\frac{y_2-y_1}{x_2-x_1}[/tex] So when you have two pairs of points, it will be [tex](x_1,y_1)[/tex] and [tex](x_2,y_2)[/tex] so our points are; (0,4) the first point, so [tex]x_1=0,y_1=4[/tex] and(0.-3) the second point, so [tex]x_2=0,y_2=-3[/tex] Put this in our equation [tex]slope=\frac{(-3)-(4)}{(0)-(0)}=\frac{-7}{0}[/tex] Oh no, that can't be right, any number divided by zero is undefined, meaning can't be answered. So this line has no slope So how do we know the equation? Remember, (a) if the line is horizontal, then the slope is 0,(b) if the line is vertical then the slope is undefinedSo our line is vertical, meaning it is an equation of xIf it were horizontal it would be an equation of ySo vertical, it is [tex]x=??[/tex] How do we know what x equals? Just look at our points (0,4) and (0,-3)For both of them [tex]x=0[/tex] and this is our equation!Please help!!
What is the solution to 2x^2+x+2=0?
Answer:
your 3rd option
Step-by-step explanation:
[tex]\frac{-1+/-\sqrt{1-4(2)(2} )}{2(2)}[/tex]
[tex]{\frac{-1+/-\sqrt{1-16} }{4}}[/tex]
[tex]{\frac{-1+/-\sqrt{-15} }{4}}[/tex]
[tex]{\frac{-1+/-i\sqrt{15} }{4}}[/tex]
Determine which slope is the steepest. Explain why it is the steepest.
A)Slope=5/3
B)Slope=-3/2
C)Slope=0
Answer:
A is the steepest because
A = 1.66666666667
B=-1.5
C= just 0
Step-by-step explanation:
what coefficient would you get for the x terms on the right side of 3x+15=2x+10+x+5
Answer:
x=0
Step-by-step explanation:
Answer:
Any real number.
Step-by-step explanation:
3x + 15 = 2x + 10 + x + 5
First, add like terms.
3x + 15 = 3x + 15
Subtract 15 on both sides.
3x = 3x
Divide 3 on both sides.
x = x
Since x equals x, you can give any value (any real number) to x.
Since 3x = 3x, you can say x = 1, meaning 3 = 3.
Or, you can say x = 8. 3x = 3x will be 24 = 24.
x can be any number.
Find the coordinates of the image after a reflection across the line y = x.
Answer:
(2 1) for L (4 3) for G (4 -1)
Step-by-step explanation:
Find the slope of the line shown below
Answer:
slope is 4/2 or 2 if you're supposed to simplify.
Step-by-step explanation:
ian ran 3 miles in 18 minutes, how many miles he ran per minute? PLs help!!!!!!!!!!and give a realistic answer
Answer:
He ran 1 mile every 6 minutes
Step-by-step explanation:
Solve for u. -24 = u ÷ 6
U=
Answer: Um, the answer is U= –144.
Step-by-step explanation:
Any help would be appreciated(brainly for best answer)
Answer:
b.
m<1 = 80 degrees because of the alternate angles rule.
m<2 = 100 degrees because angles on a straight line equals 180 degrees.
c.
m<1=75 degrees because again of the alternate angle rule.
m<2= 60 because that angle is equal to diagonally upper angle (I'll call it Z) and that angle would equal 60 because 180-120=60
Step-by-step explanation:
You really didn't need to do such complex math. If you want me to explain it more in detail, please let me know.
After one day, you read 40 pages of a book. On each
following day, you read 10 more pages.
Write an equation in point-slope form to model the
number of pages you have read, y, after 2 days.
Then use your equation to determine the number of
pages of the book will you have read after 9 days.
Answer:
61 pages
Step-by-step explanation:
cuz you add up all the numbers by 40+10=50, and 9+2=11.
Answer:
Step-by-step explanation: basically ur gonna take 40(the pages) then u read 10 pages every day for 9 days. which is 40+10(9) =130
Ralph ran 15 miles in 5 days. If he continues to run at this rate, how far would he be expected to run in 8 days?
If ABC is congruent to DBE find x
Answer:
x=44 degrees
Step-by-step explanation:
5y-4 has to equal 81 in order for the two triangles to be congruent.
The sum of the interior angles of a triangle is always 180 degrees.
81+51=132 degrees
180-132=48
x+4=48
x=48-4
x=44 degrees
Y>3/4|x-1|-7 what is the transformation from the parent function?
Answer:
( - 3 ' - 4 )
Step-by-step explanation:
is this a slope of 8/4
Answer:
Yes
Step-by-step explanation: