Answer:
0.11
Step-by-step explanation:
The events are independent, so:
P(A and B) = P(A) × P(B)
P = 0.5 × 0.22
P = 0.11
Describe how to select a stratified random sample of 36 people hired by ETS to score the AP Statistics Exams. Explain your choice of strata.
Answer:
The strata will be the category of people with at least 3 years of working experience scoring AP Statistics
Step-by-step explanation:
The strata will be the category of people with at least 3 years of working experience scoring AP Statistics Exams.
I will use this strata because it is only those with a track record of scoring AP Statistics Exams that can rightly score for ETS. People who don't have the right amount of experience of scoring AP Statistics exam may need some training because they need to understand the specifics on how to grade some questions and respective answers.
rename fraction to similar fraction 6/8 and2/12=
Answer:
6/8=18/24
2/12 = 4/24
Step-by-step explanation:
If you want to make the fractions the same, look at the denominator.
6/8 and 2/12
what number can both 8 and 12 go into?
It goes into 24
so 6/8 would be 6*3 and 8*3 because whatever you do to the bottom, you do to the top and 8*3 is 24 so 6*3 is 18 and for 2/12 you multiply both by 2 since 12*2=24 and 2*2=4
I will do 6/8 only. You do the other fraction.
Pick a number, any number. How about 2?
Multiply the top and bottom number by 2.
6 x 2 = 12
8 x 2 = 16
We get 12/16.
Reducing 12/16 to the lowest terms we get 3/4.
Another fraction similar to 6/8 is 3/4. In fact, they are equivalent fractions.
Do the other fraction in like fashion.
Note: Each fraction given has more than one similar fraction.
Chris paid $9.18 for a necklace. This amount includes a sales tax of 8%. What was the cost of the necklace before tax?
Answer:
8.5 or 8.50
Step-by-step explanation:
None for now
"Not putting it here"
The cost of the necklace before tax, for which Chris paid $9.18 including the sales tax of 8% is $8.5.
What is percentage increase ?Percentage increase is the amount added to the initial value in the percentage part.
Chris paid $9.18 for a necklace. This amount includes a sales tax of 8%.
Let the cost of the necklace before tax is x dollars. Now, the 108% of the x is $9.18. Thus,
[tex]x\times\dfrac{100+8}{100}=9.18\\x=\dfrac{9.18\times100}{108}\\x=8.5[/tex]
Hence, the cost of the necklace before tax, for which Chris paid $9.18 including the sales tax of 8% is $8.5.
Learn more about the percentage increase here;
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Find the Midpoint between (0,2) and (8, 10)
A. (4.11.3)
B. (3, 14.4)
C. (4, 6)
D. None of the Above
I NEED HELP NOW!!
Every weekend Jude goes to a movie with his friend. He always forgets to bring money, so his friend always lends him $5 to buy his movie ticket. Which graph represents how much money Jude owes his friend over time, and is correctly described as continuous or discrete?
Each number in a list of numbers is 3 more than the number before it. The first number in the list is -4. What is the fifth number?
A 8
B. 7
C. 6
D. 5
Answer: it’s A
Step-by-step explanation: Because you add three each time, so starting from -4 you go to -1 and then 2 and then 5 and then the fourth number 8
The fifth number in the list of numbers is 8.
Option A is the correct answer.
What is an expression?An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.
Example: 2 + 3x + 4y = 7 is an expression.
We have,
The first number in the list is -4.
Each number is 3 more than the number before it.
This means,
Second number = -4 + 3 = -1
Third number = -1 + 3 = 2
Fourth number = 2 + 3 = 5
Fifth number = 5 + 3 = 8
Thus,
The fifth number is 8.
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A health club charges a one-time sign up fee of $99.99 plus a monthly charge of $12.75. A new member paid a total of $189.24 when she signed up. For how many months did she pay?
(A)7
(B)15
(C)22
(D)77
Answer: A. 7
Step-by-step explanation:
189.24 - 99.99 = 89.25
89.25 ÷ 12.75 = 7
Based on the information given the number of months did she pay is (A)7.
First step is to calculate the fee amount paid
Amount=$189.24 -$99.99
Amount=$89.25
Second step is to calculate for number of months
Number of months=$89.25 ÷ $12.75
Number of months= 7 months
Inconclusion the number of months did she pay is (A)7.
Learn more about charges here:https://brainly.com/question/14530457
Which of the following expressions are equal to -(8/4)?
A. 8/-3
B. - 8/-3
C. None of the above
Answer:
C. None of the above
Step-by-step explanation:
Helpppppppppppppppppp
Answer: 4b+9
Step-by-step explanation: add the B's together
Answer:
14b+8
Step-by-step explanation:
b+b-1+b+b+10b+9
b+b+8+b+b+10b
b+b+8+b+b+10b
14b+8
I hope this help because i don't really know how to solve your question but i did this how i kinda of know so i hope this help you
Sam has 43 pencils. Abby has twice as many pencils as Sam. How many pencils do they have altogether?
Answer:
86 altogether.
Step-by-step explanation:
Since she has twice as many, you would do 43 x 2 = 86
Answer:
129
Step-by-step explanation:
Sam = 43 (s)
Abby = 2s
s + 2s = 3s
3s, when s = 43, equals 129
A computer company, Repair-IT, told Alex it would cost $240 to fix his computer. The materials needed make up 40% of the total cost. The labor makes up 60% of the total cost.
Answer:
materials gets 96 and labor gets 144
Step-by-step explanation:
Which system of equations does the graph represent? A) y = 2x + 2 y = -3x + 4 B) y = x + 2 y = -x + 4 C) y = 2x + 4 y = -3x + 2 D) y = -x + 2 y = x + 4
Answer: I believe it’s B
Use algebra tiles to model the expression. Then, use the model to help you write an equivalent expression, and complete the statements.
3(x + 1)
Answer:
1. 3
2. 3
3. 3
4. 3x + 3
Step-by-step explanation:
7. In Ryan's city, it rained 2/5 of the days in September. More than 2 cm of rain fell 1/4 of those days. What fraction of the days in September had rainfall of more than 2 cm?
Answer:
1/10 of the days in September had rainfall more than 2 cm
Step-by-step explanation:
Use the information given:
2/5 of the days in September had rain1/4 of the days in September that had rain, had more then 2cm of rain1/4 of 2/5 is 2/20=1/10
Write an equation in point-slope form, if m= 3 and passes through (4, 5).
Answer:
y - 5 = 3(x - 4)
General Formulas and Concepts:
Algebra I
Point-Slope Form: y - y₁ = m(x - x₁)
x₁ - x coordinate y₁ - y coordinate m - slopeStep-by-step explanation:
Step 1: Define
Slope m = 3
Point (4, 5)
Step 2: Write equation
Point-Slope Form: y - 5 = 3(x - 4)
Mr Harris owns a bubble machine that he uses for different school events
Answer:
3/8
Step-by-step explanation:
did on iready and got it right c:
Please help sorry if it’s a little blurry! I’ll mark brainliest if you tell me why you got that answer.
Answer:
Hi! Saw your comment saying you got it, congrats! I hope you are having an amazing day/night and I wish you luck with the rest of your studies! I hope you don't mind that I use this for some points! <3
What level do i have to be to choose brainliest
Answer:
any level...there just has to be 2 answers or more in your question
Step-by-step explanation:
Answer:
no level
Step-by-step explanation:
Please help I’ll mark brainliest as long as you tell me how you got that answer, also I apologize if it’s kinda blurry. I hope you can still read it
Answer:
Answer is C
Step-by-step explanation:
I mean there isn't much too this problem just fit in the values into the answers, so the correct answer is c because 16 + 0.55n is sixteen dollars for the trophy and 55 cents per letter in the engraving. Also, the other store sells the trophy for 22 dollars and 25 cents per letter on the engraving.
Answer:
a
Step-by-step explanation:
if you look at the equation, you can see there is an equal sign, so both costs must be the same. this marks out c and d.
each side of the equation has to be paired with one another. 16 and .55 have to be together, and 22 and .25 have to be together. in b, they are mixed up, so that makes it wrong.
this leaves a
3x+13 what is x I need help please Need a quick response
Answer:
X cannot be solved for
Step-by-step explanation:
This isn't an equation because there's no equal sign and it cannot be simplified further. X values cannot be combined with non-x values.
A right rectangular prism is packed with cubes of side length 1/6 inch. If the prism is packed with 12 cubes along the length, 3 cubes along the width, and 2 cubes along the height, what is the volume of the prism?
A. 1/3 Cubic Inch
B. 1 2/3 Cubic Inches
C. 1/6 Cubic Inch
D. 2 5/6 Cubic Inches
Please answer as soon as possible!
Answer:
a
Step-by-step explanation:
2*1/6 is 2/6, which is 1/3
Find the x-intercept of the following equation. Simplify your answer.
x + 10y = 8
](6^3 - 9)/23]4
Evaluate this expression
The value of the expression is [(6^3 - 9)/23]4 = 36
How to evaluate the expression?The expression is given as:
[(6^3 - 9)/23]4
Evaluate the exponent
[(6^3 - 9)/23]4 = [(216- 9)/23]4
Evaluate the quotient and the difference
[(6^3 - 9)/23]4 = [9]4
Evaluate the product
[(6^3 - 9)/23]4 = 36
Hence, the value of the expression is [(6^3 - 9)/23]4 = 36
Read more about expressions at:
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#3
Michael brings 6 toy cars to his friends house. These cars represent 20% of
his toy car collection.What is the total number of cars in Michael's toy car
collection?
Double number line:
double number line into the slide. Then, type your answer in the textbox. Make sure you write in a complete math sentence.
Big burger is offering a value meal that includes a burger, and two side items such as fries, salad or drink. each if the side items costs the same amount. the price of the meal is $12. The burger cost $7. -an equation that represents the cost of the meal and calculate the price of one of the side items. - solve the equation, showing your work and steps -explain what your solution means mi
Answer:
2 1/2 dollars per side
Step-by-step explanation:
7 + 5 is 12 so half of five ( 5$ is the price of two sides ) is 2 1/2 and 2 1/2 is the price of one side.
( sorry if it is confusing ^O^ )
1) Shanika can run 5 miles for every 30 minutes she runs. How many minutes will it take her to run 13 miles? Explain how you solved the problem.
Answer: 78
Step-by-step explanation: multiply 13 x 30 which gives you 390 then divide that by 5 giving you 78 minutes.
The high school has 23 teachers and 575 students what is the ratio of teachers to students
Answer:
1:25
Step-by-step explanation:
if you divide 575 by 23 you get 25, therefore there are 25 students per 1 teacher
Reading a text message takes your eyes off the road for about 4.6 seconds according
to a recent study. If you are traveling 60 mph and check a text message while you
are driving, how far do you travel (in feet) with your eyes not on the road? Round
your answer to the nearest foot.
Answer:
d = 404.8 feet
Step-by-step explanation:
We take our eyes off the road for about 4.6 seconds according to a recent study.
Speed, v = 60 mph
We need to find the distance travel by you with your eyes not on the road. Let it is d.
Speed, v = d/t
d = vt
We know that, 1 mile = 5280 feet
[tex]d=\dfrac{60\times 5280\ \text{feet}}{3600\ s}\times 4.6\ s\\\\=404.8\ \text{feet}[/tex]
Hence, the required distance is 404.8 feet.
What is the percent of increase from 900,000 to 1,000,000?
Round your answer to the nearest tenth of a percent and include a percent sign (%),
Answer:
1000000/900000= 10/9= 1.1111111111*100=11.11%
Find the slope to the graph
Answer:
the slope is 3/2
Step-by-step explanation:
Answer:
[tex]\frac32[/tex]
Step-by-step explanation:
Hello!
We can solve for the slope using the formula [tex]\frac{Rise}{Run}[/tex].
Rise is the change in y between two pointsRun is the change in x between two pointsWe need two points that belong on this line to find the slope. The two points I'm picking are (-1,-1) and (1,2).
Calculate the SlopeThe change in y (-1 and 2) is 3The change in x (-1 and 1) is 2Plugging it into the formula, we get a slope of [tex]\frac32[/tex].