Which line show the first error in the solution?
3(x−2)=18 (1)
3x−6=18 (2)
3x−6+6=18+6 (3)
3x=24 (4)
x=21 (5)
Line 2
Line 4
Line 5
Line 3
Answer:
Line 3
Step-by-step explanation:
Proper solution step-by-step:
1. 3(x-2)=18
2. 3x - 6 = 18
3. 3x = 18 + 6
4. 3x = 24
5. x = 8
Hi can someone help me with this I’ll mark u as brainliest :)
Answer:
A: [tex]5^2[/tex] times [tex]5^2[/tex]
C: [tex]\frac{1}{5^-^4}[/tex]
Step-by-step explanation:
A:
[tex]5^2[/tex] × [tex]5^2[/tex]
[tex]=5^2^+^2[/tex]
[tex]=5^4[/tex]
C:
[tex]\frac{1}{5^-^4}[/tex]
[tex]=5^4[/tex]
7
Find the slope of a line that passes through the points (-5,3) and (-3, 8)
Answer:
-2/5
Step-by-step explanation:
hope this helps
Please help
I will mark brainlest and theres alot of points :)
Answer:
answer is a
Step-by-step explanation:
5(2)=10+2(7)=24
Help me please!! I cannot do math! :D
Answer:
Dude PDF is not a question
Step-by-step explanation:
3.
=45x-27
=9(5x-3)
4.
=6x+75x²
=3x(2+9x)
17.
22=16+x+3+14+57
5
110=90+x
110-90=x
x=20
which of the following is equivalent to i³³?
1. i
2. -i
3. 1
4-1
Answer:
3
Step-by-step explanation:
Add your CORRECT Please
Answer:
IQR= (16)−(10)=6
Thus, option 'C' is true.
Step-by-step explanation:
Given the data
8, 9, 9, 10, 12, 12, 13, 14, 15, 15, 15, 16, 18, 19, 20
The interquartile range is equal to the difference between the 75th and the 25th percentiles
The 25th percentile is 10
The 75th percentile is 16
Finally,
IQR= (16)−(10)=6
Thus, option 'C' is true.
Write an explicit formula for each sequence.
3, 7, 11, 15, ...
Answer:
f(n)= f(1)+d(n-1)
Step-by-step explanation:
the aerithmetric explict formula is the one above, but im not sure what the question is asking, your difference is 4 btw
The Ratio of number x and four added by two
Answer:
The ratio of a number x and four added to two:
= 4x + 2 = 0
= 4x = -2
= 4x/4 = -2/4
= x = -2/4
= x = -1/2
Step-by-step explanation:
Hope this helped!
how many solutions does
-10x+x=-9x have
A) one solution
B) two solutions
C) No solutions
D) infinite solutions
Answer:
I am not sure but i think B so two solutions
In Woodinville the sales tax is 10%. What is the total cost including tax on a $28 purchase?
Answer:
$30.80
Step-by-step explanation:
10% of $28 is 2.80
add 28+2.80=30.80
find the value of 7w+9 given that -4w -4=4
can someone please help!! it would mean the world to me:) i fave finals tomorrow
Answer:
w= -1/3
Let's solve your equation step-by-step.
7w+9−4w−4=4
Step 1: Simplify both sides of the equation.
7w+9−4w−4=4
7w+9+−4w+−4=4
(7w+−4w)+(9+−4)=4(Combine Like Terms)
3w+5=4
3w+5=4
Step 2: Subtract 5 from both sides.
3w+5−5=4−5
3w=−1
Step 3: Divide both sides by 3.
3w/3=−1/3
w= −1/3
Answer:
w= −1/3
HOPE THIS HELPS <3333333
-Silver
Which shape are congruent to shape I in this graph
CAN SOMEONE PLEASE HELP ME ASAP ILL MARK BRAINLIST!!!!!
Answer:
a or b
Step-by-step explanation:
Answer:
B. 30
Step-by-step explanation:
3/4 = .75
120 * .75 = 90
Of those 90 students 1/3 wore sandals.
1/3 = approximately .33
90 * .33 = 29.7
Therefore, around 30 students wore jeans and sandals.
Find the m<2 if m<1=127 awnser choice a.106 b.127 c. 90 d.53
Solve for x
3x-30=4
HELPPPPPPPPPPP
Answer:
x=34/3
Step-by-step explanation:
10:Mohan lent altogether 6,600 to Ram and Shyam for 2 years. Ram agreed to
pay simple interest at 15 % p.a. and Shyam agreed to pay compound interest
at the same rate. If Ram paid Rs 112.50 more than Shyam as the interest, find
how much did he lend to each of them?
Answer:
Mohan lent 3600 to Ram and 3000 to Shyam.
Step-by-step explanation:
Given that Mohan lent altogether 6,600 to Ram and Shyam for 2 years.
Let Mohan lent x to Ram and y to Shyam
x+y=6600
Or, x=6600-y ...(i)
As Ram pays simple interest at 15 %=0.15 p.a, so, the interest paid by Ram in 2 years:
[tex]I=x\times 0.15 \times 2 \\\\\Rightarrow I=0.3x \\\\[/tex]
[tex]\Rightarrow I=0.3(6600-y) \\\\[/tex] [by using (i)]
[tex]\Rightarrow I=1980-0.3y \cdots(ii)[/tex]
As Shyam pays compound interest at 15 %=0.15 p.a,
so, the interest paid by Shyam in 2 years, C.I.= Final amount - Initial principal amount
[tex]C.I. = y(1+0.15)^2-y \\\\\Rightarrow C.I. = y(1.15^2-1) \\\\\Rightarrow C.I. = y(1.3225-1) \\\\\Rightarrow C.I. = 0.3225y \cdots(iii)[/tex]
As Ram paid Rs 112.50 more than Shyam as the interest, so by using equations (ii) and (iii),
[tex](1980-0.3y)-0.3225y=112.5 \\\\\Rightarrow 1980-0.3y-0.3225y=112.5 \\\\\Rightarrow 0.6225y=1980-112.5 \\\\\Rightarrow y = 1867.5/0.6225=3000[/tex]
From equations (i),
[tex]x=6600-3000=3600[/tex]
Hence, Mohan lent 3600 to Ram and 3000 to Shyam.
Write the slope-interest form of the equation that passes through (-2,6) with a slope of 3/2
Answer:
y = 3/2x+6
Step-by-step explanation:
Answer:
y = [tex]\frac{3}{2}[/tex]x + 9
Step-by-step explanation:
Slope-intercept form is y = mx + b. [tex]\frac{3}{2}[/tex] is the slope and 9 is the y-intercept.
Vaughn paints his porch floor and also the porch floors of 9 neighbors. Each floor is a rectangle that is 8.2 feet long and 6.7 feet wide. What is the exact total area of all the porch floors that Vaughn paints? Enter your answer in the box.
(My little sister needs help but I can't help her right now)
Answer:
494.46 feet²
Step-by-step explanation:
So the area of one porch floor is
=l×w
=8.2×6.7 feet²
=54.94 feet²
So he paints 9 porch floors
So the exact total area of all the porch floors that Vaughn paints is
=54.94×9 feet²
=494.46 feet²
420 presents in 15 hours at this rate how many presents does Santa deliver in 5 hours
Answer:
140 Presenrs
Step-by-step explanation:
If Santa delivers 420 presents in 15 hours and to get to 5 hours you need to divide 15 to 3, so what you do to one number you must do to the other, so therefore divide 420 by 3 to get 140 presents in 5 hours.
how many combinations of 3 letters can be made from the word oranges ? what is the probability that these three letters will all be consonants?
The number of all possible combinations of 3 letters can be made from the word 'oranges' = 35
The probability that the three letters will be consonants = 0.114
In this question, we have been given a word 'oranges'
We need to find the number of ways in which the letters of orange can be arranged.
Also, we need to find the probability that these three letters will all be consonants.
The number of letters in the word oranges = 7
So, n = 7
We need combinations of 3 letters.
so, r = 3
The number of all possible combinations of 3 letters would be,
^7C_3 = 7! / (7 - 3)! (3!)
^7C_3 = 35
The number of combinations of 3 letters = 35
We can observe that the consonants in the word 'oranges' are:
r, n, g, s
The number of consonants = 4
The combinations of 3 consonants would be,
^4C_3 = 4! / (4 - 3)! 3!
^4C_3 = 4
The required probability would be,
p = ^4C_3 / ^7C_3
p = 4 / 35
p = 0.114
Therefore, the number of all possible combinations of 3 letters can be made from the word 'oranges' = 35
the probability that the three letters will be consonants = 0.114
Learn more about the probability here:
https://brainly.com/question/3679442
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PLEASE HELP ASAP I HAVE A TEST TIME LIMIT EDGE 2020! HELLLLP!
Which statement best illustrates using the vertical line test to determine if the graph below is a function of x?
A. The graph is not a function of x because the line x = 0 intersects the graph at two points.
B. The graph is a function of x because the line x = 5 does not intersect the graph.
C. The graph is not a function of x because the line y = 0 intersects the graph at two points.
D. The graph is a function of x because the line y = 5 does not intersect the graph.
Answer:
A
Step-by-step explanation:
Graph is not a function, so B and D are false.
y = 0 is a horizontal line, not a vertical line, so C is false.
This leaves only A.
Solve for v.
V - 32
4
10
Please help!:)
·A long distance runner started on a course running at an average speed of 6
mph. One hour later, a second runner began the same course at an average
speed of 8 mph. How long after the second runner started will the second
runner overtake the first runner? I also need the work pls help!
Given the equation 12x – 6y = –36, identify the slope and y-intercept.
what is equivalent to 2/3 - (-3/4) + 5/4
Answer:
Simplify the expression.
Exact Form:
8
3
Decimal Form:
2.
¯
6
Mixed Number Form:
2
2
3
Step-by-step explanation:
Identify a solution to this system of equations:
[-4+3y=23]
[x-y=-7]
Answer:
solution for -4 + 3y = 23
3y = 23+4
3y = 27
y = 9
solution for X - y = -7
X = 1
y = 8
Answer: x = 2; y = 9
[tex]\left \{ {{-4+3y=23} \atop {x-y=-7}} \right.\\\\<=>\left \{ {{3y=27} \atop {x=y-7}} \right.\\\\<=>\left \{ {{y=9} \atop {x=y-7}} \right.\\\\<=>\left \{ {{y=9} \atop {x=2}} \right.[/tex]
Step-by-step explanation:
in triangle MNP, the measure of angle M is 70° and the measure of angle N is 80°. which is the shortest angle?
Answer:
the shortest angle is P which is 30
Step-by-step explanation:
180-70-80= 30
The PTO is hosting a donut and coffee day at the shcool. Each box of donuts and costs $9.00 and each cup of
coffee cost $0.50. The PTO spent $63 on the donuts and on the coffee.
What are the unknown quantities in this problem? Select all that apply.
The school where the donut and coffee day will take place.
The cost of each box of donuts.
The cost of each cup of coffee.
The number of boxes of donuts the PTO bought.
The number of cups of coffee the PTO bought.
Answer:
The school where the donut and coffee day will take place.
The number of boxes of donuts the PTO bought.
The number of cups of coffee the PTO bought.
A spherical ball has a diameter of 8 inches. The ball has a slow leak in which the air escapes at the rate of 2.5 inches per second. How long would it take for the ball to deflate? Round to the nearest tenth.
Answer:
107.2 seconds
Step-by-step explanation:
Step one:
given
the diameter of ball 8 inches
radius= 8/2 = 4 in
The volume of the ball
[tex]v=4/3 \pi r^3[/tex]
[tex]v= 4/3*3.142*4^3\\\\v= 4/3*3.142*64\\\\v= 804.35/3\\\\v=268.12 in^3[/tex]
Step two:
we know that
rate= quantity/time
rate= 2.4 in per second
quantity= 268.12
time=?
time= quantity/rate
time= 268.12/2.5
time= 107.2 seconds