Answer:
The number is 3
Step-by-step explanation:
Ok, first thing's first: we need to make the words into an actual equation.
since it just says a number I'll use x
3 times x + 4 = 13
3x +4 =13
Now that we have our equation, we can solve for x
3x + 4 = 13
-4 -4
3x = 9
I subtracted 4 on both sides to get rid of the 4 and move it to the other side of the equation, so we can try to get x by itself.
3x =9
/3 /3
x = 3
I divided both sides by 3 to get rid of the 3 that's being multiplied by x
Now we have our number : x = 3
I hope this helps :)
the inhabitants of an island tell the truth with probability 1/3 and lie with probability 2/3, independently of each other. one islander makes a statement. a second islander says that the first islander told the truth. what is the probability that the statement is true?
The probability to the statement to be true is 1/5.
Probability:
Probability refers the chance of an event occurring.
The formula of the probability is,
Probability = the number of ways of achieving success / the total number of possible outcomes.
Given,
The inhabitants of an island tell
the truth with probability 1/3 and
lie with probability 2/3, independently of each other.
One islander makes a statement. a second islander says that the first islander told the truth.
Here we need to find the probability of the statement.
Let us assuming the two islanders statements are independent, the probability they both told the truth is
=> 1/3 x 1/3 = 1/6
If the probability of the second guy backing up the first statement is the probability they both lied or they both told the truth
=> (2/3 x 2/3) + (1/3 x 1/3)
=> 4/9 + 1/6
=> 5/9
So, the probability of the first guy telling the truth, given that the second guy claiming it was true
=> P(A|B) = P(AB)/P(B)
=> (1/9) / (5/9) = 1/5.
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Which fraction represents the ratio of 3 roosters out of 10 chickens
in simplest form?
A. 3
−10 B. 1
−3
C. 3 D. 10
−3
Answer:
A
Step-by-step explanation:
For a given input value rrr, the function hhh outputs a value qqq to satisfy the following equation. q-10=6(r+1)q−10=6(r+1)q, minus, 10, equals, 6, left parenthesis, r, plus, 1, right parenthesis Write a formula for h(r)h(r)h, left parenthesis, r, right parenthesis in terms of rrr. h(r)=h(r)=
Answer:
6r+16
Step-by-step explanation:
The required function h is q= 6r+16.
A simplified function h for q-10=6(r+1) to be determine.
A function is defined as for every input their is a certain output.
Here, we have q-10=6(r+1)
q = 6r+6 + 10
q = 6r+16
Thus, the required function h is q= 6r+16.
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the length of a rectangle is 5 M more than twice its width find the area of the rectangle if it's perimeter is 20 m
The area of the rectangle is [tex]\frac{125}{9}m^{2}[/tex]
Given that the length of a rectangle is 5m more than twice its width and the perimeter of the rectangle is 20m
length of rectangle(l)=5m+2(width of rectangle)(w)
l=5+2w
The perimeter of rectangle=2(length of rectangle+width of rectangle)
Perimeter of rectangle=2(5+2w+w)
The perimeter of the rectangle=2(5+3w)
20=2(5+3w)
10=5+3w
5=3w
w=[tex]\frac{5}{3}[/tex]
l=5+2w
⇒l=5+[tex]\frac{10}{3}[/tex]
⇒l=[tex]\frac{25}{3}[/tex]
Area of rectangle =(length of rectangle)×(width of rectangle)
Area of rectangle =[tex]\frac{25}{3}[/tex]×[tex]\frac{5}{3}[/tex]
Area of rectangle = [tex]\frac{125}{9}m^{2}[/tex]
Therefore, The area of the rectangle is [tex]\frac{125}{9}m^{2}[/tex]
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Genesis would like to join a Book Club. She needs to pay $12.00 for entrance into the book
club and $20.00 per month. Write an equation in function notation for the total cost of the book
club.
Answer:
An equation in function notation for the total cost of the book club will be:
y = 20x + 12Step-by-step explanation:
Given that Genesis needs to pay $12.00 for entrance into the book club.
Per month fee = $20.00
We know that the slope-intercept form of a linear function is
[tex]y = mx+b[/tex]
where m is the slope and b is the y-intercept
As the rate of change is also called the slope.
The rate of $20.00 per month would be termed as the slope = m = 20
One time fee = $12.00, meaning the y-intercept = b = 12
Thus, the equation becomes
[tex]y = mx+b[/tex]
y represents the total costx represents the durationm represents the rate of change = m = 20b represents the y-intercept = b = 12y = 20x + 12
Therefore, an equation in function notation for the total cost of the book club will be:
y = 20x + 12Help? i need help...............................
Answer:
64
Step-by-step explanation:
4lb=64 ounces
identify whether each of the following expression is a quadratic expression in one variable. Give reason for your anwser
a.
[tex] {x}^{2} + 5x - 10[/tex]
b.
[tex] - 4 {u}^{2} - 3u[/tex]
c.
[tex]5x + 8[/tex]
d.
[tex] {x}^{3} + 2x + 1[/tex]
e.
[tex] \frac{2}{9} {y}^{2} [/tex]
f.
[tex] \frac{ {x}^{2} + 7x + 2}{x} [/tex]
Find the measure of the missing angle.
Answer: a =
100°
a
Answer:
80 degrees. See below for explanation.
Step-by-step explanation:
A straight line is an angle of 180 degrees.
180-100 will give the value of the missing angle.
The missing angle has a measure of 80 degrees.
James buys headphones that cost $10.00. He pays 6% sales tax. How much does he pay for the headphones with tax? A. $11.60 B. $6.00 C. $12.00 D. $10.60
Answer:
D
Step-by-step explanation:
you do 6% of 10.00 which is 0.6 which equals 60 cents so you add 60 cents to 10.00 then you get $10.60
Answer: Yep its D or 10.60
Step-by-step explanation: I add this so you can be more sure, good luck on your test :D
This is the graph of f(x). What is the value of f(2)?
O A. 9
OB. 6
O C. 5
D. 2
Answer: It is 9
Step-by-step explanation: f(2) means what is the y value, when x is equal to 2, that would be 9.
Which function is best represented by this graph?
y = 2x + 8
y=−8x+8
y=−2x+8
y=−2x+4
Answer:
-2x + 8
Step-by-step explanation:
8 is y intercept. 2 units down and one to the right. -2/1 so -2
Please help me desperate......
Answer:
m
Step-by-step explanation:
computer chips are etched on circular silicon wafers of thickness 0.3 mm that are sliced from a solid cylindrical silicon crystal of length 10 inch = 254 mm. each wafer can hold 100 chips. how many chips can be produced from one cylinder?
Volume-84666.66 chips can be produced from one cylinder;
The thickness of each wafer = 0.3 mm
So, that no. of wafer that can be sliced from entire cylinder of length 25cm;
N = 254/0.3 = 846.66
Each wafer can hold 100 chips. So; total number of chips from entire cylinder = 846.66 × 100 = 84666.66 chips;
what is an example volume?
quantity is the measure of the potential that an object holds. for example, if a cup can maintain 100 ml of water up to the brim, its quantity is said to be a hundred ml. quantity can also be defined as the amount of area occupied by way of a 3-dimensional item
what is volume in liquid?
If volume is the quantity of 3-D area contained by means of a closed surface (e.g. the amount of area inside a given cube, or cylinder, or another 3-D shape), liquid volume is a way to degree an amount of liquid via describing it how tons three-D space it occupies.
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5 pounds of apples cost $7.45 dependent or independent ?
Answer:
9.8 x 7.45 = $73.01 ...
Step-by-step explanation:
Find the value of x in the triangle shown below.
O
X =
37°
56°
Answer:
x equals 87
Step-by-step explanation:
37 + 56 = 93
triangles always equal to 180
180 - 93 = 87
2x + 15
4x - 1
SOLVE FOR X
WILL GIVE BRAINLEST
Solve for B
ab +c=d
Answer:
ab + c = d
ab = d - c
Divide both sides by a
ab/a = d-c/a
b = d - c/ a
Step-by-step explanation:
Answer:
[tex]b \: = \: d \: - \: c \: \div a[/tex]
Step-by-step explanation:
ab + c = d
ab = d - c
b = d - c/a
ABC=DBC, AB=10, mA=44
mD = ?
Answer: 44
Step-by-step explanation:
Since ABC=DBC. that means A=D so that would mean 44=D since A=44 and they’re both congruent (equal)
Answer:
its 44
Step-by-step explanation:
LAST QUESTION please just help me out please
Please helppppp :)))
Answer:
all I see is a black screen for the question???
Which is true? Any translation can be replaced by two reflections. Any translation can be replaced by two rotations. Any rotation can be replaced by a reflection. Any reflection can be replaced by a rotation followed by a translation.
Answer:
Following are the solution to the given question:
Step-by-step explanation:
There is no numbering of the question, which is specified in the enclosed file. please, Find it.
In point 1, the statement is true .
In point 2, the statement is False.
In point 3, the statement is true .
In point 4, the statement is False.
please help!! 1. A recipe for apple cider calls for 5 cups of apple juice and 3 cups of water. Which equation can be used to find x, the percent of apple juice in the recipe?
A. 5/3=x/100
b 3/5=x/100
c 8/3=100/x
d 8/5=100/x
Answer:
the answer will be A
What is the final amount if 731 is increased by 7% followed by a 4% decrease? Give your answer rounded to 2 DP.
Answer:
750.88 (rounded to 2 d.p.)
Step-by-step explanation:
100% --- 731
100% + 7% --- [tex]\frac{100+7}{100}[/tex] × 731 = 782.17
100% --- 782.17
100% - 4% --- [tex]\frac{100-4}{100}[/tex] × 782.17 = 750.88 (rounded to 2 d.p.)
Sean sold half of his comics to buy a game. Later, he bought 7 new comics. How many did he start with if he now has 20:
Answer:
26
Step-by-step explanation:
20-7= 13 (half his comics) 13+13=26
Think about 6 ÷ 2/3
How can you find the number of
Multiply 6 by
Then divide by
1s in 67
to find the number of thirds in 6.
to find the number of groups of 2 thirds.
Answer: 9
Step-by-step explanation:
[tex]\displaystyle\\6\div\frac{2}{3}=\\\\ 6*\frac{3}{2}=\\\\ \frac{(6)(3)}{2}=\\\\ \frac{(2)(3)(3)}{2} =\\\\(3)(3)=\\\\9[/tex]
find the common difference of the arithmetic sequence -6,-13,-20,...
Answer:
Step-by-step explanation:
the common difference of the arithmetic sequence is -7
8. What value of b, would make the relation ((0,4), (8,1), (b,5), (3,6)} a function"?
a. 0
b. 8
c. 5
d. 3
e. None of the above
The value of b which make the function relations to be true is 5.
What are relations and functions?The function is a relation that states that each input and each output must have a single value.
The expression that established the relationship between the dependent variable and independent variable is referred to as a function.
In the function as the value of the independent variable varies the value of the dependent variable also varies.
Given coordinates are ((0,4), (8,1), (b,5), (3,6)}. The value of b will be calculated as:-
((0,4),
(8,1),
(b,5) = ( 5,5)
(3,6)}
If all output values are different from each other then all the input values will also be different.
Therefore, the value of b which makes the function relations to be true is 5.
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On what interval is the function f(x) = -1272 +452 - 54 decreasing?
Answer:
mume le land mujhe chod na mat sekha
Step-by-step explanation:
laude ke bal
149 rounded to the nearest hundredth
Answer: 12.21
Step-by-step explanation: Since it is telling you to use a calculator, there is no explanation other than use a calculator.
Is (1, -2) a solution of the graphed inequality?
Answer:
No, it is not it is a coordinate point
A graphed inequality x<8 that example
Step-by-step explanation:
Answer:
Please attach the graph, and I will edit the answer.
Step-by-step explanation:
Thanks.