Answer:
24+40=8(3+5)
30+40=10(3+4)
30+42=6(5+7)
Step-by-step explanation:
Look at 24 and 40 and determine the biggest number that goes into both of these numbers. Greatest(biggest) common(same) factor(number that goes into another number). Sometimes you can find the prime factorization to do this, or there's a method of listing factors. Both of these numbers are products found in a regular times table. You can run the factors using mental math to find the biggest one.
You consider the factors of 30 and 40. 10 is the biggest number that goes into both.
And 30 and 42, 6 goes into both.
The numbers that go inside the parentheses are the other factors of the two numbers you're given.
24 is 8×3. 8 is the common factor. 3 goes inside the parentheses.
40 is 8×5. 8 is the common factor. 5 goes inside the parentheses.
Jenna bought four composition notebooks in three pocket folders from the bookstore and paid $9.85. If the cost of a pocket folder is $1.15 less than the cost of a notebook, find the cost for a notebook.
Answer:
9.85 - 1.15 = 8.70
Step-by-step explanation:
you jus subtract :)
Answer:
$1.90
Step-by-step explanation:
Let n represent the cost of a notebook. Jenna's purchase is ...
4n +3(n -1.15) = 9.85
7n - 3.45 = 9.85 . . . . . simplify
7n = 13.30 . . . . . . . . . . add 3.45
n = 1.90 . . . . . . . . . . . . divide by 7
The cost of a notebook is $1.90.
_____
Additional comment
The cost of a folder is 1.90 -1.15 = 0.75. The total purchase is ...
4(1.90) +3(0.75) = 7.60 +2.25 = 9.85
A map has a scale of 1 inch = 3 miles. Which of the following scales is equivalent?
Answer:
Step-by-step explanation:
77 inches
Step-by-step explanation:
Given
1 inch = 3 miles in map
We are also given the actual distance between City A and City B = 231 miles.
In order to get the distance in inches = Distance between City A and City B in miles/ 3
We are dividing the distance by 3 to get the distance in inches.
So,
Distance on map = 231/3
= 77 inches
URGENT(this is homework assignment and i dont really have much time)
A standard number cube, numbered 1 through 6 on each side, is rolled 3 times. What is the probability of rolling a 2 on all three rolls? Enter the answer as a fraction
Answer:
1/(6^3)
Step-by-step explanation:
Each roll of the die constitutes a separate event.
These three events are independent.
The probability of rolling a 2 on the first throw is 1/6, since there is only one '2' among the six numbers on the die.
Because each roll is independent of the others, the probability of rolling a
2 1
on all three rolls is (1/6)(1/6)(1/6), or -----------
6^3
Last month Sara ran 22.3/4 miles. That brings her total so far this year to 76 miles. What was the total of Sara's miles before last month
Answer:
since 22.3/4 as a decimal is 5.575. ill subtract that from 76.
76-5.575=70.425. this as a fraction is 70 17/40
Find the area and the circumference of the circle. Round your answers to the nearest hundredth. PLEASE SHOW WORK
27/2=13.5(radius)
area: pi*r*r=
pi*13.5*13.5=
572.55526
rounded, 572.56
circumference: 2*pi*r(which is basically diameter times pi)
27pi=84.823
rounded, 84.82
What is the length of the diagonal, d, of the rectangular prism shown below?
Round your answer to the nearest tenth.
Answer:
The answer is 14
Help Quickly Please!
Answer:
18
Step-by-step explanation:
turn 3/8 into a decimal, .375, then multiply by 48
Answer:
you can simplify this question by making 48 48 over 1, and multiplying it by 3 over 8, the answer is 18
Step-by-step explanation:
i will put a answer up in 3 hours i have 30,000 points so be ready
Answer:
we need more people like you
Step-by-step explanation:
thank you!
Answer:
ok
Step-by-step explanation:
50 POINTS TO WHOEVER SOLVES ALL OF THESE!!!!!!! PERCENTAGES
Original Price:100% Discount Amount: 20% New Price: Pay 80% Expression:
100
50
28
14.50
x
100 50 28 14.5 i don't know anyone else who know this
The____of the number of____an event occurs to the total number of trials.
Answer:
The ratio of the number of times an event occurs to the total number of trials.
Step-by-step explanation:
Answer:
The ratio of the number of time
The y axis is a line of symmetry for a triangle. The coordinates of two of its vertices are (-3, 2) and (0,5)
A. What are the coordinates of the third vertex?
B. What is the area of the triangle?
Answer:
(3,2)
Step-by-step explanation:
since it symmetrical over the y axis it will be the same as the first point except the x will be the opposite
Answer:
See belowStep-by-step explanation:
A)
One of the points on the y-axis (0, 5).
It means the other vertices are symmetrical:
(-3, 2) and (3, 2)B)
The height of the triangle is the difference of the y-coordinates:
h = 5 - 2 = 3The base of the triangle is the distance between the symmetric vertices:
b = 3 - (-3) = 6The area is:
A = 1/2bh = 1/2*6*3 = 9 units²which set of equations would have infinite solutions?
Answer the question below
What is the slope of the line that passes through (-1.5, -3)
Answer:
1/2 if it is linear
Step-by-step explanation:
Hope this helps!
Jimmy and his family are on their way to visit some family friends who live 780 miles away from them. Based on the route they chose, they expect to complete their trip in three days. The distances and average speeds for the first two days driven are shown below. • First day: 4 hours at an average speed of 60 miles per hour • Second day: 6 hours at an average speed of 65 miles per hour If the average speed on the third day is 60 miles per hour, how many more hours will it take for them to reach their family friends’ home?
Answer:
If they drive an average of 60 miles per hour the last day it will take them 2.5 hours.
4 hours at 60 miles per hour = 4*60 = 240 miles
6 hours at 65 miles per hour = 6*65 = 390 miles
This is a total of 630 miles. There are 780-630=150 miles left; if they average 60 miles per hour, that would be 150/60 = 2.5 hours.
Step-by-step explanation:
What is 5.5 : 6.5 as a simplified fraction?
Answer:
5.5 = 5.5 = 55 1/2
6.5 = 6.5 = 66 1/2
Step-by-step explanation:
WHOEVER ANSWERS CORRECTLY W STEP BY STEP GETS BRAINLIEST
Which system of equations have the same solutions?
A. L and M
B. L and N
C. M and N
D. L, M, and N
I NEED HELP WITH THIS ASAP PLEASEEE!!!!
Answer:
1. Marcia
2. (I do not understand what this question is asking)
3. Marcia's estimation is closer
4. 690 people per year
Step-by-step explanation:
1. Marcia's estimation has a greater number of people because he estimated 600 people per year, while Adam estimated 2% of 12,500 (250 people per year).
2. (I do not understand what this question is asking)
3. marcias guess was 600 (600x50+12,500 = 42,500. 42,500 - 35,400 = 7,100) while Adam's guess was 250 per year (250x50+12,500 = 10,400). Therefore, Marcia's guess was closer to 35,400.
4. If Marcia adjusted her answer so that the population in Burbville was ACTUALLY going to be 34,500, she would need to adjust her estimation to 690 people per year.
Hope this helps! So sorry I couldn't understand question 2!
Please Help Will mark Brainliest
What are your zodiac signs?
doing this for math class
i have to make a pie chart
im a gemini
Answer:
I'm a Gemini
Step-by-step explanation:
Aries, Taurus, Gemini, Cancer, Leo, Virgo, Libra, Scorpio, Sagittarius, Capricorn, Aquarius and Pisces.
Those are all of the 12 signs.
HELPPPP PLZZ ND THANK YOU SOO MUCH
Answer:
50, 40, 30, 250, 350
Step-by-step explanation:
1/2 = 0.5, 0.5 x 100 = 50 (0.5 -> 5 -> 50)
2/5 = 0.4 (10 / 5 [the denominator] = 2, 0.2 x 2 [the numerator] = 0.4), 0.4 x 100 = 40 (0.4 -> 4 -> 40)
3/10 = (10 / 10 [the denominator] = 1, 0.1 x 3 [the numerator] = 0.3), 0.3 x 100 = 30 (0.3 -> 3 -> 30)
5/2 = 2.5 (2 1/2), 2.5 x 100 = 250 (2.5 -> 25 -> 250)
7/2 = 3.5 (3 1/2), 3.5 x 100 = 350 (3.5 -> 35 -> 350)
Note: I'm not sure if I understand the question completely, but I changed the fraction into a decimal and multiplied it by 100. Not sure what it means by "Divide fraction".
Answer:
According to the question , firstly we have to divide the fraction and then convert them into percentage
So , let's do it :-
1/2 = 0.5 = 50 %2/5 = 0.4 = 40 %3/10 = 0.3 = 30%5/2 = 2.5 = 250%7/2 = 3.5 = 350%I need help fast pls
Answer:
1. no
2. no
3. no
4.yes
Step-by-step explanation:
1. if you solve this you will get -11/120 and you want 3/7
2. no because you will get 5/16 and you want 5/8
3. no because you will get 3/8 and you want 5/8
4. yes because you will get 5/8
A bag contains 6 red markers, 5 blue markers, and 4 green markers. A marker is randomly selected, its color is recorded, and it is returned to the bag. This is repeated 1050 times.
How many times is it expected that a red marker will be selected?
A.) approximately 280 times
B.) approximately 350 times
C.) approximately 420 times
D.) approximately 630 times
Answer:
If I am correct, the answer should be C
Step-by-step explanation:
The expected value of the red marker will be selected is 420. Then the correct option is C.
How to find that a given condition can be modeled by binomial distribution?Binomial distributions consist of n independent Bernoulli trials.
Bernoulli trials are those trials that end up randomly either on success (with probability p) or on failures( with probability 1- p = q (say))
Suppose we have random variable X pertaining to a binomial distribution with parameters n and p, then it is written as
[tex]\rm X \sim B(n,p)[/tex]
The probability that out of n trials, there'd be x successes is given by
[tex]\rm P(X =x) = \: ^nC_xp^x(1-p)^{n-x}[/tex]
The expected value of X is:
[tex]\rm E(X) = np\\[/tex]
A bag contains 6 red markers, 5 blue markers, and 4 green markers.
A marker is randomly selected, its color is recorded, and it is returned to the bag.
This is repeated 1050 times.
n = 1050
Then the value of p will be
[tex]p=\dfrac{^6C_1}{^{15}C_1} = \dfrac{6}{15} = 0.4[/tex]
Then the expected value will be
[tex]\rm E(X) = np\\\\\rm E(X) = 1050 \times 0.4 \\\\\rm E(X) = 420[/tex]
Learn more about binomial distribution here:
https://brainly.com/question/13609688
solve ..................
Answer:
your answer is b hope this helped!!
Step-by-step explanation:
Answer:
B. 8.6 cm
Step-by-step explanation:
For angle α, x is the opposite leg.
z is the hypotenuse.
sin α = opp/hyp
sin 27° = x/(19 cm)
x = 19 cm × sin 27°
x = 8.6 cm
Answer: B. 8.6 cm
Help pleaseeeeeeeeee
Answer:
B. 30 - (2×3)
C. 40 - 4(3+1)
E. 6×6 - 4×3 = 24
Step-by-step explanation:
B. 30 - (2×3)
30 - 6 = 24
C. 40 - 4(3+1)
40 - 4×4 = 40 - 16 = 24
E. 6×6 - 4×3 = 24
36 - 12 = 24
Hope this helps :)
Have an awesome day!
Answer:
A: (3 x 4) + (2 x 6) = 24
B: 30 - (2 x 3) = 24
C: 40 - 4 x (3 + 1) = 24
D: 20 + 2 + 1 + 1 = 24
E: (6 + 6) + (4 x 3) = 24
I played this game with my math teacher once
Select all of the situations which can be represented by the expression 25.75x + 10.
Answer:
1. no
2. yes
3. no
4. yes
Step-by-step explanation:
Susan has a 6 3/5m of ribbon and her sister has 1/3 of a 10m ribbon. How much more ribbon does Susan have than her sister
Answer
49/15
Step-by-step explanation:
because 1/3 of a 10m is 10/3 which is about 3.3 repeating
and 6 3/5 minus 10/3 is 49/15 which is also 3 4/15.
Mind lending a hand?
Answer:
The second one
Step-by-step explanation:
Note that he can spend a MAXIMUM of $40 meaning that he can either spend less than or exactly 40 dollars. So if we are creating an inequality the inequality sign must face $40 and it can be equal to 40 therefore we know the inequality must start off with 40≥ or end with ≤40
The movie ticket cost 10$
The amount of money that can be spent on food can be represented by d
the amount of money that can be spent on food plus the cost of the ticket (10) must be equal to or less that 40
Therefore 10 + d ≤ 40
The answer is the second one
