Answer:
The answer is x = 3
Step-by-step explanation:
5x + 9 = 24
5x +9 -9 = 24 - 9
5x = 15
x = 15/5 = 3
Therefore, x = 3
Kelly multiplied 5 to each side when she solved for x, which is incorrect.
Answer:
Kelly had incorrectly solved for [tex]x[/tex] where she had multiplied by [tex]5[/tex] instead of dividing by [tex]5[/tex] to find for [tex]x[/tex].
Step-by-step explanation:
How Kelly should have solved it:
[tex]5x+9 = 24[/tex]
[tex]5x + 9-9= 24-9[/tex]
[tex]5x=15[/tex]
[tex]5x\div 5=15\div 5[/tex] (mistake occurred during this step in Kelly's work where she had multiplied by [tex]5[/tex])
[tex]x=3[/tex]
Checking:
To check if [tex]x=3[/tex], we can use substitution:
[tex]5x+9 = 5(3)+9[/tex]
[tex]=15+9[/tex]
[tex]=24[/tex]
∴ The solution for [tex]x[/tex] is correct.
Hope this helps :)
How can I get better at math so I don't flunk?
Answer:My suggestion is practice what you learned after each class for like 10-20 min and pay close attention in class. Wish you the best of luck.
Step-by-step explanation:
Find the missing terms in each geometric sequence.
1. 3, 12, 48 __, __
2. __, __, 32, 64, 128, ...
3. 120, 60, 30, __, __
4. 5, __, 20, 40, __, __
5. __, 4, 12, 36, __, __
PLEASE HELP!!! I WILL MARK BRAINLY AND ITS WORTH 15 POINTS!!!
its 10 points
c and d cause each Px = 4 for c and 10 for d.
Which property should be used next in this solution process?
3x + 2 + 3 = 7(x - 1) – 4
3x + 5 = 7(x - 1) – 4
A. Commutative Property of Addition
B. Identity Property of Multiplication
C. Associative Property of Multiplication
D.
Distributive Property
Answer:
niwebfasfbjsdfb
Step-by-step explanation:
jsdfhsdbfjhadsjbdsfhb
What are the zeros of this function
Sove the equation for all real solutions
-d^2-12d+4=-6d^2
Answer:
d=25 or d=2
Step-by-step explanation:
hope that helps!
Answer:
d=2/5 or d=2
Step-by-step explanation:
Step 1: Subtract -6d^2 from both sides.
−d2−12d+4−−6d2=−6d2−−6d2
5d2−12d+4=0
Step 2: Factor left side of equation.
(5d−2)(d−2)=0
Step 3: Set factors equal to 0.
5d−2=0 or d−2=0
d= 2/5 or d=2
Which is the graph of f(x) = x2 – 2x + 3?
Answer:
The correct answer is:
The graph will be the same width as the parent graph f(x) = x², but the vertex has been shifted to (1, 2).
Step-by-step explanation:
Since the value of a, the coefficient of x², is 1, this means the graph has not been stretched or shrunk. However, since the function is different than f(x)=x², we know that the vertex is not at (0, 0). We can write the function in vertex form to find the new vertex.
To write the function in vertex form, we find the value of b/2. The value of b in this function is -2; -2/2 = -1. We then square this: (-1)² = 1. This is what we add and subtract to the function (we must do both to preserve equality), giving us:
f(x) = x²-2x+1+3-1
The first three terms of this function can be written as the square (x+(b/2))²; this is (x-1)², and gives us f(x) = (x-1)²+3-1. Combining like terms, we have:
f(x) = (x-1)²+2
This is vertex form, f(x) = a(x-h)²+k, where (h, k) is the vertex. This means the vertex is at (1, 2) instead of (0, 0).
Answer:
It's the first graph :D
Step-by-step explanation: hope it helps ^w^
25 points if you answer. Martin Rode his bike 3 2/3 miles in 16 1/2 minutes. Assume he wrote the same speed the entire time. How fast did he ride in miles per minute?
Answer:
The speed is 2/9 miles per minute
Step-by-step explanation:
Speed is defined as the distance covered per unit time.
The formula for speed is given by:
[tex]Speed = \frac{distance}{time}[/tex]
Let s be the speed, d be the distance and t be the time then
[tex]s = \frac{d}{t}[/tex]
Given
[tex]d = 3\frac{2}{3} = \frac{11}{3}\ miles\\t = 16\frac{1}{2} = \frac{33}{2}\ minutes[/tex]
The speed will be calculated by dividing the number of miles by minutes
So putting the values in the formula
[tex]s = \frac{\frac{11}{3}}{\frac{33}{2}}\\= \frac{11}{3} * \frac{2}{33}\\=\frac{1}{3} * \frac{2}{3}\\=\frac{2}{9}[/tex]
Hence,
The speed is 2/9 miles per minute
the first blank is 25 the second blank is 10 what is the slope
Answer:
5/2
Step-by-step explanation:
25 and 10 so 25/10 or 5/2 or 2 1/2
Please help! It's about systems of equations. Answer correctly i will mark brainliest
Answer:
Step-by-step explanation:
Y= -6
X=-2
Please Help
Please let me know how to do it, I don't only want the answer. Thank you!
(4y+3)-(y-2)
(There is no equal sign in the math problem)
Plzz plzzz explain this!!!!
Answer:
hope it helps...
Step-by-step explanation:
please comment me if it is really helpful ..
When you flip a biased coin the probability of getting a tail is 0.35.
Find the probability of getting a head.
Answer:
0.65
Step-by-step explanation:
a coin has 2 sides so there is two outcomes
1-0.35=0.65
a regular pentagon and an equilateral triangle have the same perimeter...........
(Please don't answer with anything that doesn't relate to it, such as no mimicking please i beg you)
I only have 1 hour before class help please
Answer:
Option 4: 45 units is the correct answer
Step-by-step explanation:
Let [tex]P_1[/tex] be the perimeter of Pentagon and
Let P2 be the perimeter of Triangle
So,
[tex]P_1 = 5(\frac{1}{2}x-1)\\P_2 = 3(x-5)[/tex]
In order to find the perimeter of each figure we have to put both the expressions equal so that the value of x can be found and then perimeter.
So,
[tex]P_1 = P_2\\5(\frac{1}{2}x-1) = 3(x-5)\\\frac{5}{2}x-5 = 3x-15\\\frac{5}{2}x-3x = -15+5\\\frac{5x-6x}{2} = -10\\-\frac{x}{2} = -10\\-x = -10 * 2\\-x = -20\\x = 20[/tex]
Putting x = 20 in 2nd perimeter
[tex]P_2 = 3(x-5) \\= 3(20-5)\\= 3(15)\\=45[/tex]
As both the perimeters are same, the perimeter of pentagon will also be 45 units.
Hence,
Option 4: 45 units is the correct answer
There are 625 students at Median middle school. If 8% of the students were absent on Tuesday , how many students were absent?
If 8% of students were absent on Tuesday no. of students that were absent was 50.
What is the percentage?A percentage is a value per hundredth. Percentages can be converted into decimals and fractions by dividing the percentage value by a hundred.
Given, There are 625 students at Median middle school and 8% of the students were absent on Tuesday.
∴ No. of students that were absent on Tuesday is 8% of 625 which is,
= (8/100)×625.
= 50.
Learn more about percentages here :
https://brainly.com/question/24159063
#SPJ2
PLEASE HELP ME WITH MY MATHE HOMEWORK!
Answer:
59/6
Step-by-step explanation:
9x6=54
54+5= 59
put the denominator of the fraction to the denominator to the new fraction. I hope this helps.
PLEASE SOMEONE HELP ME. I WILL BRAINLIEST YOU AND GIVE YOU POINTS.
Answer:
option D is the answer
Step-by-step explanation:
3n + 5
_______
n² + 5
What is the equation of the line in slope-intercept form?
Answer:
y = 4/3 + 4
Step-by-step explanation:
4/3 comes from using rise over run. 4 comes from the y-intercept.
Answer:
y = [tex]\frac{4}{3}[/tex] x + 4
Step-by-step explanation:
y = mx + b
m = [tex]\frac{rise}{run}[/tex] ; "b" is y-intercept
~~~~~~~~~~~
m = [tex]\frac{4}{3}[/tex] and b = 4
y = [tex]\frac{4}{3}[/tex] x + 4
Please help me with this equation
Answer:
u just expand the brackets out and make a linear equation to solve from there
Step-by-step explanation:
What is the percent decrease of 51,300 and 45,800
Answer:
about 10.7%
Step-by-step explanation:
51300x=45800
x= approx. 0.893 of original so 1-.893=.107
.107*100=approx. 10.7% decrease
a rectangular garage has a volume of 480m^3, with a length of 12m and the width 8m.
Answer:
5 m
Step-by-step explanation:
V = l × w × h
480 = 12 × 8 × h
h = 480 ÷ 96 = 5 m
Answer:
5m
Step-by-step explanation:
Well volume is V=Bh. So you do 12 times 8= 96 thats your base. So you need to them do 480 divided by 96 which equals 5 so therefore 5 is your answer. Also just to make sure that's the right answer, do 12 times 8 times 5. That equals 480.
1. At the beginning of the year, Maria had $100 in her savings account. She plans to spend $10 a
month on a music app. By the end of January, she will have $90, 580 by the end of February,
$70 by the end of March, and so on. Write an equation that describes the amount in her savings
at any given month. Be sure to describe what your variables represent.
The volume of a right circular cone is 300 cubic inches. What is the volume, in cubic inches, of
a right cylinder that has the same base and height as the cone?
Answer:
900 cubic inches.
Step-by-step explanation:
Given the following data
Volume of right circular cone = 300in³
We know that the volume of a right circular cone is given by the formula;
[tex] V = \frac{1}{3} \pi r^{2}h[/tex]
Where;
V is the volume of right circular cone.r is the radius of the base of the right circular cone.h is the height of the right circular cone.The volume of a right circular cylinder is given by the formula;
[tex] V = \pi r^{2}h[/tex]
Thus, multiplying the volume of the right circular cone by 3 would give us the volume of the right circular cylinder.
[tex] V = \frac{1}{3} \pi r^{2}h * 3[/tex]
Substituting into the equation, we have;
V = 300 * 3
V = 900in³
Therefore, the volume of a right cylinder that has the same base and height as the cone is 900 cubic inches.
can someone please help me
Answer:
a=5
Step-by-step explanation:
18-2a=8
-18 -18
-2a=-10
/-2 /-2
a=5
i am a real number
i am a rational number
i am not a natural number
i am less than -13
what number am i?
Answer:Any number less than -13.
Step-by-step explanation:
If the number is real and rational and non-natural, this means that it can be any number in the negative number space.
Additionally, since the number has to be less than -13, then the number could be any number less than -13.
With all these things considered, the number is any number less than -13 that is real and rational.
Cheers.
What is the slope of the line below
Answer:-1/2
Step-by-step explanation:
Look at the points
Sally is currently in a city that is 100 ft below sea level. She then drives to a new city 50 ft above sea level. What integer represents the total distance sally drove
Answer:
I think the answer is -50.
Step-by-step explanation:
50 feet below sea level. First, look for key words. The word “below” means you will need to use a negative integer. The answer is -50.
The product of 5 and a number x is 1/4 What is the value of x?
x=19/4
x=1/20
x =5/4
x =4 3/4
Answer:
x=19/4
Step-by-step explanation:
The product of 5 and a number x is 1/4
Find the slope of the line without graphing using the 2 points below.
(-3 , 4) & (13 , 8)
m = _______
Answer:
Step-by-step explanation:
1. use the slope formula --> (y2-y1)/(x2-x1)
2. (8 - 4)/(13 -(-3))
3. 4/16
4. m = 1/4
Determine the input UNITS of ITEM and the output UNITS of ITEM for the statement
below:
It is a lovely time of year on the Serengeti Desert. Every time Simba washes his clothes,
he has to use 1 capful of detergent for each load of wash.
Answer:
For statement 1 :
INPUT UNIT OF ITEM : Time of the year on Serengeti Desert
OUTPUT UNIT OF ITEM : Simba washes his clothes
For statement 2
INPUT UNIT OF ITEM : 1 capful of detergent
OUTPUT UNIT OF ITEM : each load of wash
Step-by-step explanation:
For statement 1 :
INPUT UNIT OF ITEM : Time of the year on Serengeti Desert
OUTPUT UNIT OF ITEM : Simba washes his clothes
For statement 2
INPUT UNIT OF ITEM : 1 capful of detergent
OUTPUT UNIT OF ITEM : each load of wash
From answers provided above the basis for the answers is that an input unit of item will have to result to a reaction which is an output unit of item hence the answers above