PLEASE HELP MEEE!!! What is the experimental probability that Mr. Fell's class rolled a 3?
Probability = the number of ways of achieving success (getting the desired outcome).
P(E) = event with the desired outcome/total no. of events
P(E) = 7/60
A car tracked 600 miles in 5 hours. what is the average speed of the car ?
Answer:
120 mph
Step-by-step explanation:
How to calculate is 600/5
Answer
The average speed of the car is 120 miles per hour.
Explanation
The formula to find speed is distance over time.
600 miles is the distance.
5 hours is the time.
So divide 600 by 5.
600 divided by 5 is 120, meaning the average speed of the car is 120 miles per hour.
What is the slope of the line of the equation y = x + 4?
Answer:
x
Step-by-step explanation:
bc the coefficient of x is 1 and that's invisible so it's x
Kendra painted 40% of a banner. Benicio painted an equal amount of the same banner. The rest of the banner remains unpainted. Which fraction describes the amount of banner that remains unpainted?
Answer:
1/5
Step-by-step explanation:
Since Kendra painted 40% of the banner and Benicio painted the same, it would equal 80. Since its asking you what is left it would be 20, when you convert 20 into a fraction you'll get 1/5
I hope this helped
Answer:
1/5
Step-by-step explanation:
1/5 is the answer
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170.55 rounded to the nearest tenth
Answer:
170.6
Step-by-step explanation:
170.55
The tenths place is where the left 5 is.
1. Drop everything to its right.
170.5
2. Look at the first digit that was dropped. It is a 5. That means the last digit that remains goes up by 1 to 6.
Answer: 170.6
Answer:
170.6
Step-by-step explanation:
170.55 ≈ 170.6
When you are rounding numbers, you have to look at the digit after the digit you are rounding to. So if you are rounding to the nearest tenth, you need to look at the digit next to it which is the hundredth. If the hundredth is 1-4, then you round down. If the hundredth is 5-9, then you round up. Since the hundredth is 5, you round the 5 in the tenth place up to 6.
In 1983, a hardcover dictionary cost $145.75. If the CPI is currently 209, what would a hardcover dictionary cost today? Round to the nearest cent.
a. $354.75
b. $304.62
$254.75
d. $209.00
Answer:
b. $304.62
Step-by-step explanation:
Just took the test and got it right
The cost of the hardcoer dictionary today given the CPI is $304.62.
What is the consumer price index?The consumer price index measures the percentage in the price of a basket of goods. It is used to measure inflation.
Cost of the hardcoer dictionary today = $145.75 x (209/100) = $304.62
To learn more about, consumer price index, please check: https://brainly.com/question/26382640
find an antiderivative F(x) with F'(x) = f(x) = 11+(21x^2)+(21x^6) and F(1)=0
Inverse function details
Step-by-step explanation:
First, replace f(x) with y ⇒ f(x)=6x-19 ⇒ y=6x-19
Then y with x and x with y ⇒ y=6x-19 ⇒ x=6y-19
Solve the equation from for y:
x=6y-19
x+19=6y dividing with 6
1/6 x +(19/6) = y
Replace y with f−1(x) ⇒ f−1(x)= 1/6 x +(19/6)
hope this helps!
The following polynomial has factors:
P(x) = x3 + 3x2 - x - 3.
x - 1
x + 1
x - 3
Answer:
(x-1)(x+1)(x+3)
Step-by-step explanation:
first you group the 2 parts of the equation
{(x^3) + (3x^3)} {-x - 3}
you can take out x squared from the first group and are left with x+3 and you can take out -1 from the second group also leaving you with x+3. Because these groups match it means that x+3 is a factor.
x^2(x+3) -1(x+3)
combine them
(x^2-1) (x+3)
x squared minus one can be simplified more to (x-1) and (x+1) so the final answer is (x-1)(x+1)(x+3)
In a baseball game Joey took 2,900 shots and sored 39% of the time how manytimes did Joey score?
Answer:
1131
Step-by-step explanation:
2900 x .39 = 1131
Solve the system of equations down below Y-15=3x
-2+5y=-3
Answer:
Step-by-step explanation:
-5(y-15=3x) = -5y+75=-15x
add 15x to both sides and subtract 75 to both side
-5y+15x=-75
5y-2x=-3
13x=-78
and then both side divide by 13
x=-6
y-15=3(-6)
y-15=-18
Y= (-18) - 15 = -3
y=-3
and the answer will be (-6,-3)
hope that help you
Answer:
(-6, -3)
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightEquality Properties
Algebra I
Solving systems of equations using substitution/eliminationSolving systems of equations by graphingStep-by-step explanation:
Step 1: Define Systems
y - 15 = 3x
-2x + 5y = -3
Step 2: Rewrite Systems
y - 15 = 3x
Add 15 to both sides: y = 3x + 15Step 3: Redefine Systems
y = 3x + 15
-2x + 5y = -3
Step 4: Solve for x
Substitution
Substitute in y: -2x + 5(3x + 15) = -3Distribute 5: -2x + 15x + 75 = -3Combine like terms: 13x + 75 = -3Isolate x term: 13x = -78Isolate x: x = -6Step 5: Solve for y
Define equation: y - 15 = 3xSubstitute in x: y - 15 = 3(-6)Multiply: y - 15 = -18Isolate y: y = -3Step 6: Graph Systems
Check the solution set.
For the function F(x)=2x+1/
5x−2, evaluate F(−6).
Answer: f(-6) = 11/32
Step-by-step explanation:
f(x) = 2x+1/5x-2 TO solve for f(-6) input -6 into the function for x.
f(-6) = 2(-6) + 1/ 5(-6) - 2
f(-6) = -12 + 1 / -30 - 2
f(-6) = -11/ -32
f(-6) = 11/32
1. A cell phone plans costs $30.35 a month plus and additional $3.00 per music download.
a. Write an expression to find the cost if “m” songs downloaded
Help i need help if you answer right then i put brainliest.
Answer:
17.5-b=12.5 (b=5)
3/2+b=5 (b=7/2)
b+6=15 (b=9)
27 / b= 3 (b=9)
4 x b = 14 ( b=7/2)
Step-by-step explanation:
Having a savings account can contribute to a person’s overall financial well-being. Which one of the following is NOT a benefit of maintaining a savings account? a. A savings account provides security in tough financial times b. With a savings account, you can invest when the opportunity presents itself c. Having a savings account gives individuals the ability to borrow money from members in the community d. A savings account allows an individual to fulfill life long dream
Answer:
haveing a savings account give individuals the ability to borrow money from members in the community
the awnser is C
Step-by-step explanation:
20 pts You have hip-hop dance practice for 5 weeks. You attend practice 5 days each week. Each practice is the same length of time. You practice for 37.5 hours altogether. How many hours do you practice each day?
Answer:
1.5 hr
Step-by-step explanation:
The number of hours of practice each day is 1.5 hours.
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,
Number of practice weeks = 5
Number of practice days in a week = 5
The total number of practice days.
= 5 x 5
= 25 days
Total time for 25 practice days = 37.5 hours.
The number of hours each practice day.
= 37.5 ÷ 25
= 1.5 hours
Thus,
1.5 hours of practice each day.
Learn more about expressions here:
https://brainly.com/question/3118662
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3x + 2=11 solve for x
Answer:
x=3
Step-by-step explanation:
3x3=9
9+2=11
Brainliest plz :)
Answer:
X = 3
Step-by-step explanation:
3x + 2 = 11
3x = 11 - 2
3x = 9
X = 9/3
X = 3
PLEASE HELP ME!! ITS RLLY EASY!!
Answer:
i think its the last option
Step-by-step explanation:
if bob and billy went on a date, and had kids even though it is not biologically possible, what is the distance between the sun from john and paul's baby?
please i need a lot of help
Answer:
who's john?
Step-by-step explanation:
Answer:
B
Step-by-step explanation:
Because A GAY couple can adopt or its hypothetical that they can have a baby obviously
A.
B.
C.
D.
(I think it’s C)
Answer:
The answer would be C. I believe it is C. The force believes it is C. So put C.
a shoes store in philadelphia pays 28.75 for a pair of shoes. the store marks the item up 35%. the local sales tax is 8%. how much do the shoes cost?
Answer:
$41.11
Step-by-step explanation:
28.75 + (28.75 x 0.35) + (28.75 x 0.08)
Please mark brainliest and have a nice day
Full answer is 41.1125
Please help me with this question
Answer: 135
Step-by-step explanation:
remember PEMDAS
3^3=27
(27*10)/2=270/2=135
boy weighs 55 pounds. How much does he weigh in kilograms? Use the following conversion: 1 kilogram is 2.2 pounds.
Answer:
24.9476
Step-by-step explanation:
55= 24 kilo. but since its 2.2 pounds its gonna be the answer i said (i think) Hope this helps
Answer:
24.94
Step-by-step explanation:
this is the answer
Jake's mom is making peanut butter cookies with her chocolate chips. In her first batch, she used the ratio of 2:2 for the number of cups of chocolate chips to the number of peanut butter chips. In her second batch she used the ratio of 3:1 for the number of cups of chocolate chips to the number of cups of peanut butter and made the same number of cookies in the first batch. Jake made the following tape diagrams for his mom to reference. If her first batch used 4 cups of peanut butter chips, how many cups of chocolate chip did jakes mom use for the second batch?
Answer: i need help on this one to
Step-by-step explanation:
Answer:
6 just trust me
Step-by-step explanation:
please help with this. I got the first choice when I picked wrong so i would like help on a second attempt. thanks
Answer:
4
Step-by-step explanation:
im pretty sure that's the right answer!! let me know if I'm right
Angle a is 5/3 of Angle b.
Find Angles a and b plz
Answer:
Angle a = 112.5°
Angle b = 67.5°
Step-by-step explanation:
Angle a + angle b = 180° (Supplementary Angles/angles on a straight line)
Let x = m<b
m<a = ⁵/3(x)
Therefore:
⁵/3x + x = 180
[tex] \frac{5x}{3} + x = 180 [/tex]
[tex] \frac{5x + 3x}{3} = 180 [/tex]
[tex] \frac{8x}{3} = 180 [/tex]
Multiply both sides by 3
[tex] \frac{8x}{3} \times 3 = 180 \times 3 [/tex]
[tex] 8x = 540 [/tex]
Divide both sides by 8
x = 67.5°
Angle a = ⁵/3(x) = ⁵/3(67.5) = 112.5°
Angle b = x = 67.5°
While shopping at the mall, Jonathan saw two toys he wanted to buy. The toys originally cost $15.95 and $11.65,
but they were on sale for off the regular price.
Jonathan paid for the toys with a $20 bill. Which expression can be used to determine how much change Jonathan received?
20-1/3(15.95+11.65)
20-((15.95+11.65)-1/3(15.95+11.65))
((15.95+11.65)-1/3(15.95+11.65))-20
1/3(15.95+11.65)-20
Answer: B
Step-by-step explanation:
Answer:
Its b
Step-by-step explanation:
It costs $4.08 for a pack of 24 pencils.
Find the unit price in dollars per pencil.
If necessary, round your answer to the nearest cent.
Answer:
0.20
Step-by-step explanation:
4.08$÷24pencils=0.17cent and nearest cent 20
25 POINTS
answer question 4 pleaseeeee
Answer:
a) The average rate of change for the function [tex]f(x)=4(2)^x[/tex] over interval x=1 to x=2 is 8
b) The average rate of change for the function [tex]f(x)=4(2)^x[/tex] over interval x=3 to x=4 is 32
Step-by-step explanation:
We are given function [tex]f(x)=4(2)^x[/tex]
We need to find Average rate of change
The formula used is: [tex]Average \ rate \ of \ change=\frac{f(b)-f(a)}{b-a}[/tex]
Part a) The interval is: x=1 to x=2
We have a= 1 and b=2
Finding f(a) i.e f(1)
[tex]f(x)=4(2)^x\\Put \ x =1\\f(1)=4(2)^1\\f(1)=4(2)\\f(1)=8[/tex]
Now finding f(b) i.e f(2)
[tex]f(x)=4(2)^x\\Put \ x =2\\f(2)=4(2)^2\\f(2)=4(4)\\f(2)=16[/tex]
Now finding average rate of change.
[tex]Average \ rate \ of \ change=\frac{f(b)-f(a)}{b-a}\\Average \ rate \ of \ change=\frac{16-8}{2-1} \\Average \ rate \ of \ change=\frac{8}{1}\\Average \ rate \ of \ change=8[/tex]
So, average rate of change for the function [tex]f(x)=4(2)^x[/tex] over interval x=1 to x=2 is 8
Part b)
The interval is: x=3 to x=4
We have a= 3 and b=24
Finding f(a) i.e f(3)
[tex]f(x)=4(2)^x\\Put \ x =3\\f(3)=4(2)^3\\f(3)=4(8)\\f(3)=32[/tex]
Now finding f(b) i.e f(4)
[tex]f(x)=4(2)^x\\Put \ x =4\\f(4)=4(2)^4\\f(4)=4(16)\\f(4)=64[/tex]
Now finding average rate of change.
[tex]Average \ rate \ of \ change=\frac{f(b)-f(a)}{b-a}\\Average \ rate \ of \ change=\frac{64-32}{4-3} \\Average \ rate \ of \ change=\frac{32}{1}\\Average \ rate \ of \ change=32[/tex]
So, average rate of change for the function [tex]f(x)=4(2)^x[/tex] over interval x=3 to x=4 is 32
Since the interval is increasing, so does our average rate of change increasing as function is also increasing.
Which expression can be used to find 75% of 60?
75% of 60
25%
25%
25%
0.25
15
0.25
15
* 0.25
15
25%
0.25
15
0 (0.25)(60)
0 (0.25)(15)
O (3)(15)
O (360)
Answer:
(3)(15)
Step-by-step explanation:
75% of 60=60 x 0.75
=(3)(15)
Answer:C
Step-by-step explanation:
C