You got the twenty by adding the markup price and the original price.
order these numbers from least to greatest -3/5 , 7/9, 1.7,-7/2,0.3
local Readers Club has a set 36 hardback books and a set of 30 paperback books each set can be divided equally among the club members what is the greatest possible number of club members
Solve for b , then find the value of b when a= 3
4a=2b-7
Which one is greatest to least ?
0.23, 1/5, 19%
i believe that is correct
Find the solution of 7x = 35, and verify your solution using substitution.
A. x = 6; 7(6) = 35, 35 = 35
B. x = –5; 7(–5) = 35, –35 = –35
C. x = 245; 7(35) = 245, 245 = 245
D. x = 5; 7(5) = 35, 35 = 35
Answer : option D
Find the solution of 7x = 35
To solve for x , we need to get x alone
so we divide by 7 on both sides
[tex]\frac{7x}{7} =\frac{35}{7}[/tex]
So x= 5
To verify the solution we plug in 5 for x in the given equation 7x= 35
x=5
We have, 7x= 35
7(5)= 35
35= 35
So verified
The solution of expression is,
D. x = 5; 7(5) = 35, 35 = 35
We have to give that,
An equation to simplify,
7x = 35
Now, Simplify the equation as,
7x = 35
Divide on both sides by 7,
7x/7 = 35/7
x = 5
Hence, The solution is, x = 5
And verify it as,
7x = 35
Put x= 5;
7 (5) = 35
7 × 5 = 35
35 = 35
Therefore, The solution is, x = 5
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If the complex number x = 3 + bi and |x|^2 = 13, which is a possible value of b?
A. 2
B. 3
C. 9
D. 10
20 points to the brainliest user!!!!
If x=3+bi, then
[tex]|x|=\sqrt{3^2+b^2}.[/tex]
You know that [tex]|x|^2=13,[/tex] then
[tex]\left(\sqrt{3^2+b^2}\right)^2=13,\\ \\ 9+b^2=13,\\ \\b^2=4,\\ \\b=\pm 2.[/tex]
Two possible complex numbers satisfy these conditions:
[tex]x_1=3+2i, \ x_2=3-2i.[/tex]
As you can see the possible value of b is 2.
Answer: correct choice is A.
The possible value of b in the given complex number is 2 (Option A). This is found by using the definition of modulus of a complex number and solving the resulting equation.
Explanation:This question requires understanding of complex numbers and their modulus. A complex number is a number of the form a + bi, where a and b are real numbers and i is the imaginary unit with the property i^2 = -1.
|x|^2 represents the square of the modulus (or absolute value) of the complex number x which is defined as |x|^2 = a^2 + b^2. Given in the question, x = 3 + bi and |x|^2 = 13. Thus, by substitution, we get 13 = 3^2 + b^2.
Performing arithmetic operations, it's equivalent to b^2 = 13 - 3^2 = 4. To solve for b, we take the square root of both sides. Because b can be positive or negative, we get b = ±2. Therefore, from the options given, the possible value of b is 2 (Option A).
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john is saving money at a constant rate. Suppose he initially has $110 saved and after 2 months he has $160 saved. at what rate is john saving
The rate John is saving is 25. How? You can do 160-110 (to find difference). After this, you will get 50. You can now divide this by 2 (because the problem says two months), which is 25. You can see if this is correct by adding 25 to 110 two times.
110 + 25
= 135
135+25
=160
John is saving money at a constant rate is $25.
Given that, suppose he initially has $110 saved and after 2 months he has $160 saved.
What is the rate?The definition of a rate is a quantity measured and compared to another quantity measured (such as a number of miles per hour) or is the cost of something.
Now, money saved=160-110=$50, time 2 months
Rate of money per month=50/2=$25
Therefore, John is saving money at a constant rate is $25.
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Somebody help!!!! Please
f(x) = (x - 4 )(x - 6) = 0
because you can see when each factor is equal to zero
x - 4 = 0 ⇒ x = 4
x - 6 = 0 ⇒ x = 6
A local garden club had 14 members with a mean age of 34. Then two new members joined. One was 24 years old, and the other was 36 years old. How did the mean age change after they joined?
Without knowing the ages of all the different members of the club, I believe that the mean would go down due to 24 being an outlier. You generally take the mean by adding up all the numbers and dividing by all the # of given values. Outliers such as 24 would skew the results leaning none way or the other, in this case making it lower than the previous mean.
Answer:it decreased
Step-by-step explanation:
In the table, x represents the age in years of a collectible baseball card, and y represents its value in dollars. Cost of a Pack of Baseball Cards Age in years, x Value in dollars, y 5 0.75 10 5.75 15 10.75 20 15.75 Which statement is correct about the slope of the linear function that the table represents?
The slope of the linear function that the table represents is one
What is the general equation of a Straight line?The general equation of a straight line is -
[y] = [m]x + [c]
where -
[m] is slope of line which tells the unit rate of change of [y] with respect to [x].
[c] is the y - intercept i.e. the point where the graph cuts the [y] axis.
The equation of a straight line can be also written as -
Ax + By + C = 0
By = - Ax - C
y = (- A/B)x - (C/A)
Given is a table in which [x] represents the age in years of a collectible baseball card, and [y] represents its value in dollars.
We have the following table -
Cards age [x] 5 10 15 20
Value in dollars [y] $0.75 $5.75 $10.75 $15.75
We can calculate the slope of the linear function as -
m = (5.75 - 0.75)/(10 - 5)
m = 5/5
m = 1
Therefore, the slope of the linear function that the table represents is one.
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[Refer to the image for full question]
The number 45,28, and 53 form a Pythagorean triple
To be a Pythagorean triple, the numbers must satisfy the Pythagorean theorem:
[tex]a^2+b^2=c^2[/tex]
so check:
[tex]45^2+28^2=53^2\\\\2025+784=2809\\[/tex]
and that holds, so the statement is TRUE
I AM NOT GOOD @ WORD PROBLEMS
Here are you're answers:
Number sentence: 25 - 14 = 11
Word sentence: twenty-five minus fourteen equals eleven
The three boxes:
11
25 14
Hope this helps!
Complete the table for the given rule.
Rule: y=x−4
x y
4
6
8
Answer:
x y
4 0
6 2
8 4
Step-by-step explanation:
y=x-4
Replace x each x variable
4-4=0
6-4=2
8-4=4
To complete the table for the given rule y = x - 4, the values of y are found by substituting the x-values into the equation, resulting in y-values of 0, 2, and 4 for x-values of 4, 6, and 8, respectively.
The student has asked to complete a table for the given rule: y = x - 4. To find the value of y for each given x, we simply substitute the x values into the equation and solve for y.
For x = 4, y = 4 - 4 = 0.
For x = 6, y = 6 - 4 = 2.
For x = 8, y = 8 - 4 = 4.
Therefore, the completed table is:
x = 4, y = 0
x = 6, y = 2
x = 8, y = 4
3x-2+5x=-4x+5-2x solve
Hey there!!
Given equation :
... 3x - 2 + 5x = 4x + 5 - 2x
Combining like terms :
... 8x - 2 = 2x - 5
Subtracting 2x on both sides :
... 6x - 2 = - 5
Adding 2 on both sides :
... 6x = - 3
Dividing by 6 on both sides :
... x = -1/2 = -0.5
Hence, the answer is -0.5
Hope my answer helps!
Please help ! Mark brainly !
it would be positive because the positive number is bigger than the negative number.
Combine the two terms. Note that one negative sign and one positive sign will result in a negative sign.
8704 + (-7725) = 8704 - 7725 = 979
979 is the resulting number, which is a positive number
Positive is your answer
hope this helps
[tex]4y + 8 = 2[/tex]
[tex]4y+8=2\qquad|\text{subtract 8 from both sides}\\\\4y=-6\qquad|\text{divide both sides by 4}\\\\y=-\dfrac{6}{4}\\\\\boxed{y=-\dfrac{3}{2}\to y=-1.5}[/tex]
Hello there!
[tex]4y+8=2[/tex]
Explanation:
↓↓↓↓↓↓
First you had to subtract by 8 from both sides of the equations.
[tex]4y+8-8=2-8[/tex]
Simplify
[tex]4y=-6[/tex]
Then you divide by 4 from both sides of the equations.
[tex]\frac{4y}{4}=\frac{-6}{4}[/tex]
Simplify it should be the correct answer.
[tex]y=-\frac{3}{2}[/tex]
Answer⇒⇒⇒⇒⇒y=-3/2
Hope this helps!
Thank you for posting your question at here on Brainly.
Have a great day!
-Charlie
yesterday grace drove 28 1/2 miles she used 1/4 gallons of gasoline.what is the unit rate for miles per gallon
MPG= 30 4/5 or 30.8 is I think is the answer.
Answer:
[tex]unit\ rate=114 \frac{miles}{gallon}[/tex]
Step-by-step explanation:
Hello, I think I can help you with this
remember some properties of mixed numbers
[tex]a\frac{b}{c}=\frac{(a*c)+b}{c}\\ example\\3\frac{1}{5}= \frac{(3*5)+1}{5}=\frac{16}{5}\\[/tex]
Step 1
covert 28 1/2
a=28
b=1
c=2
[tex]a\frac{b}{c}=\frac{(a*c)+b}{c}\\28\frac{1}{2}= \frac{(28*2)+1}{2}=\frac{57}{2}=28.5\\[/tex]
Hence, the distance she drove is 28.5 miles
Step 2
find the number of gallons
[tex]\frac{1}{4}=0.25[/tex]
then, she used 0.25 gallons to travel 28.5 miles
Step 3
find the unit rate for miles per gallon
[tex]unit\ rate=\frac{number\ of\ miles}{number\ of\ gallons}\\ unit\ rate=\frac{28.5\ miles}{0.25\ gallons}\\unit\ rate=114 \frac{miles}{gallon}[/tex]
Have a great day.
find the area........
HELP! My math assignment is due in 15 minutes and this question makes no sense!
The rules for an essay contest say that entries can have 500 words with an absolute deviation of at most 30 words. Write and solve an absolute value inequality that represents the acceptable numbers of words.
Answer:
Now you can give brainliest to the person that answered the question
Step-by-step explanation:
cause the answer helped me
The absolute value inequality to represent the number of words Constraint is 470 ≤ X ≤ 530
Number of words required = 500
Error or deviation = 30
This means that :
Minimum number of words = 500 - 30 = 470Maximum number of words = 500 + 30 = 530This means that number of words must not be below the minimum value of 470 and it must not exceed the maximum number of 530Therefore, an absolute value which represents the acceptable number of words :
Minimum ≤ number of words ≤ maximum
Hence, the absolute value inequality for the number of words required is 470 ≤ X ≤ 530
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Complete the ratio table to show ratios equivalent to 16:10. The blank parts are what's missing. Thank you
2 8
36 9 72
The ratio table is completed by finding values that are equivalent to the ratio 16:10, which simplifies to 8:5. The corresponding values are calculated by setting up proportions based on the original ratio.
Explanation:To complete the ratio table that shows ratios equivalent to 16:10, we first understand that the ratio can be simplified to 8:5 by dividing both terms by 2.
We can use this simplified ratio to find missing values in the table.
For the row with 2 in the first column, the second column should be 2 times 5/8 (since 8:5 is equivalent to 16:10) to maintain the ratio equivalency.
This gives us the value 2*(5/8)=1.25.
In the row where the second column is 36, we need to determine the equivalent in the first column.
We set up the proportion 8/5=x/36, and solving for x gives us 8*(36/5)=57.6.
The last row given is 72 in the second column.
To find the corresponding first column value, we use the ratio 8/5=x/72 and solve for x to find 8*(72/5)=115.2.
The filled in ratio table should look like this:
2 : 1.2557.6 : 36115.2 : 723.5 inches divided by 24.5 inches
The distance from home to school is 3.25 miles, and the distance from school to the soda shop is 900 feet. What is the total distance from home to the soda shop?
There are 5280 feet in a mile, so 900 feet = 900/5280
= 0.1705 miles to nearest 10,000th of a mile
Total distance = 3.25 + 0.1705
= 3.4205 miles
In miles, 3.420455
In feet, 18060.0024
Hope this helps :)
orange juice is sold in four different sizes the 8 1/2 ounce bottle costs $0.99 the 18 2/2 oz. bottle costs $1.49 the 48 1/4 oz. carton costs $2.49 and the 64 3/4 oz. carton costs $3.75
1.calculate a unit rate for each size
2. which size is the best buy
Answer:
Part 1) The units rates are
A) [tex]0.1165\frac{\$}{oz}[/tex]
B) [tex]0.1656\frac{\$}{oz}[/tex]
C) [tex]0.0516\frac{\$}{oz}[/tex]
D) [tex]0.0579\frac{\$}{oz}[/tex]
Part 2) The best buy is the size 48 1/4 oz
Step-by-step explanation:
we know that
To find out the unit rate divide the total cost by the total volume
Part 1) Calculate the unit rate for each size
case A) we have
8 1/2 ounce bottle costs $0.99
Convert mixed number to an improper fraction
[tex]8\frac{1}{2} =\frac{8*2+1}{2}=\frac{17}{2}\ oz[/tex]
Find the unit rate
[tex]\frac{0.99}{(17/2)}= 0.1165\frac{\$}{oz}[/tex]
case B) we have
18 2/2 oz. bottle costs $1.49
Convert mixed number
[tex]18\frac{2}{2} =18+1=19\ oz[/tex]
Find the unit rate
[tex]\frac{1.49}{19}= 0.1656\frac{\$}{oz}[/tex]
case C) we have
48 1/4 oz. carton costs $2.49
Convert mixed number to an improper fraction
[tex]48\frac{1}{4} =\frac{48*4+1}{4}=\frac{193}{4}\ oz[/tex]
Find the unit rate
[tex]\frac{2.49}{(193/4)}= 0.0516\frac{\$}{oz}[/tex]
case D) we have
64 3/4 oz. carton costs $3.75
Convert mixed number to an improper fraction
[tex]64\frac{3}{4} =\frac{64*4+3}{4}=\frac{259}{4}\ oz[/tex]
Find the unit rate
[tex]\frac{3.75}{(259/4)}= 0.0579\frac{\$}{oz}[/tex]
Part 2) which size is the best buy
we know that
The best buy is the one with the smallest unit rate
so
[tex]0.0516\frac{\$}{oz}[/tex]
The best buy is the size 48 1/4 oz
Answer:Expert's right here WHY U LOOK AT ME
Step-by-step explanation:
In science class Abigail's frog weighed 0.88 kilograms what is the value of the digit in the tenths place
In decimals, the tenths place is right after the decimal point. Therefore, the value of the digit in the tenths place of 0.88 is 8.
could a number ever be both rational and irrational
By definition an irrational number is one that is not rational. Therefore, it is not possible for a number to both rational and irrational.
A certain bacteria is placed in a jar. Initially, there are 25 bacteria. Every hour, the number of bacteria quadruples. How much bacteria will there be in 6 hours?
Hello!
So, to answer this question we need to note that quadruple = x4
25 (our initial count) x 4 = 100
100 (after one hour) x 4 = 400
400 (after two hours) x 4 = 1600
1600 (after three hours) x 4 = 6400
6400 (after four hours) x 4 = 25600
25600 (after five hours) x 4 = 102400
So to answer your question, after six hours, there will be 102,400 of that bacteria in the jar.
Hope this helps!
If a and −a are numbers on the number line, which expression MUST give the distance between them?
Answer:
|2a|
Step-by-step explanation:
Note that distance is positive. a less -a comes out to +2a, which is the distance between and -a.
find the range of the following peicewise functiom
f(x) = x + 4 ; -4 ≤ x < 3
f(-4) = (-4) + 4
= 0
f(3) = (3) + 4
= 7
R: 0 ≤ y < 7 ⇒ [0, 7)
***************************
f(x) = 2x - 1 ; 3 ≤ x < 6
f(3) = 2(3) - 1
= 6 - 1
= 5
f(6) = 2(6) - 1
= 12 - 1
= 11
R: 5 ≤ y < 11 ⇒ [5, 11)
******************************
Now, put them together: [0, 7) U [5, 11) = [0, 11)
Answer: B
answer is [0,11)
f(x) = x+4 is the first function
We plug in -4 for x in f(x) = x+4
f(-4) = -4 + 4 = 0
So the graph starts at (-4,0)
Now plug in 3 for x in f(x) = x+4
f(3) = 3 + 4 = 7
So the first function ends at (3,7)
Second function is f(x) = 2x - 1
We plug in 3 for x in f(x) = 2x-1
f(3) =2(3)-1 = 5
So the second graph starts at (3,5)
We plug in 6 for x in f(x) = 2x-1
f(6) =2(6)-1 = 11
So the second graph ends at (6,11)
3<=x<6 so 6 is excluded from x
The range of the following piece wise function is 0 to 11
answer is [0,11)
Jenny writes a story for 60 mind if she starts writing her story at 11:50 Am when will she Finnish writing
Answer:
12:50 AM
Step-by-step explanation:
60 minutes is 1 hour. add one hour to the start time to get 12:50 AM
Answer:
12:50 AM
Step-by-step explanation:
Add one hour to the start time
If Fernando paid $450 for a netbook that was 75% off the original price what was the original price?
the original price was $1800 because if you multiple 1800 by 75 percent you get 1350 and 1800 - 1350 is equal to 450 your sale price