25 PTS!!! 3 students have gotten 3 different scores on a test, their scores were 87%, 75%, and 90%. Those 3 students want to know the average score for them.
hey I need these by 8am or I'm screwed,
[tex]34.4 \div 4[/tex]
which is greater 214.001 or 214.01
2.5x 10³
What is the difference between px+q=r and p(x+q)=r
A couple plans to have four children. Using a tree diagram , obtain the sample space. Then, find the probability that the family has no boys.
The probability that the family has no boys is [tex]\(\frac{1}{16}\)[/tex] or 0.0625.
At each level, the tree branches into two, representing the two possible genders for that child. Since there are four children, there will be [tex]\(2^4 = 16\)[/tex] branches at the end of the tree, each representing a unique sequence of genders for the four children.
The sample space, therefore, consists of 16 possible outcomes, which are:
1. BBBB
2. BBBG
3. BBGB
4. BBGG
5. BGBB
6. BGBG
7. BGGB
8. BGGG
9. GBBB
10. GBBG
11. GBGB
12. GBGG
13. GGBB
14. GGBG
15. GGGB
16. GGGG
Now, we want to find the probability that the family has no boys. From the sample space, there is only one outcome where all four children are girls (GGGG).
Since each outcome is equally likely, and there are 16 possible outcomes, the probability of having no boys is the number of favorable outcomes (in this case, 1) divided by the total number of possible outcomes (16).
Therefore, the probability [tex]\(P\)[/tex] of having no boys is:
[tex]\[ P(\text{no boys}) = \frac{\text{Number of favorable outcomes}}{\text{Total number of possible outcomes}} = \frac{1}{16} \][/tex]
Nendell saw at a diner if he bought one of each item and spent $7.50, how much did the drink cost
Each drink costs $1.57
Based on the information given,the equation to solve the question will be:
3x + 0.05 + x + x + 0.10 = 7.50
Collect like terms
5x + 0.15 = 7.50
5x = 7.35
Divide both side by 5
5x/5 = 7.35/5
x = 1.47
Therefore, the cost of drink will be:
x + 0.10 = 1.47 + 0.10 = 1.57
Read related link on:
https://brainly.com/question/5924715
D=2730 mi t=9.75 h find r
The student can find the rate by using the formula r = D/t, which yields approximately 280 miles per hour when substituting the provided values.
Explanation:The student is provided with distance (D) and time (t) and needs to find the rate (r). This is a typical problem that can be solved using the fundamental relationship between these variables, which is expressed by the equation D = r*t. To find r, we can rearrange this equation to get r = D/t.
Substituting the provided values into the formula gives r = 2730 mi/9.75 h = 280 mi/h approximately. Therefore, the rate or speed of the journey is 280 miles per hour.
Learn more about the rate of travel here:https://brainly.com/question/4800946
#SPJ2
Lisa Richter deposited $5,000 at 4% compounded semiannually for three years. At the beginning of the fourth year, Lisa deposited $2,500. What would her balance be at the end of five years assuming she is still earning 4% compounded semiannually?
$5,131
$8,131
$8,800
$8,800.99
None of these
A square floor has 100 tiles. each tile is one square foot. what is the length of one side of the square floor?
A) 10 feet
B) 20 feet
The length of one side of the square floor is 10 feet because the square root of the total area (100 square feet) is 10.
Explanation:The subject of this question involves understanding the properties of a square in geometry. In a square, all sides are equal. If the total area of the square floor is 100 square feet (since each tile is 1 square foot), you determine the length of a side by finding the square root of the total area. The square root of 100 is 10. So, each side of the floor is 10 feet long. Therefore, the correct answer is Option (A) 10 feet.
Learn more about Square Geometry here:https://brainly.com/question/12340052
#SPJ2
There is a frog jumping contest in Hippity Hop County. Leaping Larry jumps 18cm every 6 seconds.
Bouncing Billy jumps 7 cm every 3 seconds.
What is the difference in the distance they jumped at the end of 1 minute?
you can buy 5 cans for green beans at the village market for $3.60. You can buy 10 of the same cans of beans at Sam's club for $6.90. Which place is better buy?
Final answer:
To find the better buy for cans of green beans, calculate the cost per can at both stores and compare. Sam's Club sells at $0.69 per can which is cheaper than the Village Market's $0.72 per can, hence Sam's Club is the better buy.
Explanation:
To determine which place offers a better buy for the cans of green beans, we need to calculate the price per can at both the Village Market and Sam's Club. Then, we can compare the two to see which is cheaper.
At the Village Market, 5 cans cost $3.60. To find the cost per can, divide $3.60 by 5. $3.60 ÷ 5 = $0.72 per can.
At Sam's Club, 10 cans cost $6.90. To find the cost per can, divide $6.90 by 10. $6.90 ÷ 10 = $0.69 per can.
Sam's Club offers a lower price per can than the Village Market, making it the better buy for the cans of green beans.
Serena is cycling from a dance class to her home the equation shows Serena’s distance (y) in miles from her home after x minutes
Y=16-6x
What does the number 16 in the equation represent
16 is the original distance her dance class was from home.
What is an expression?The mathematical expression combines numerical variables and operations denoted by addition, subtraction, multiplication, and division signs.
Mathematical symbols can be used to represent numbers (constants), variables, operations, functions, brackets, punctuation, and grouping. They can also denote the logical syntax's operation order and other properties.
Given that Serena is cycling from a dance class to her home the equation shows Serena’s distance (y) in miles from her home after x minutes
Y = 16-6x
The given equation is the equation of the line with a slope of -6 and the y-intercept is 16.
Here, 16 is the original distance her dance class was from home.
To know more about an expression follow
https://brainly.com/question/16579380
#SPJ5
Mrs Delgado needs to buy 160 begonias. One plant costs $2. One flat with 20 plants cost $30. How many dollars will she save if she buys them by flat instead of separately?
Complete the following statement. If AB = BC and A,B,C are collinear, then b is the BLANK of AC
Answer:
the cube root
Step-by-step explanation:
The completed statement would be: "If AB = BC and A, B, C are collinear, then B is the midpoint of AC."
In the statement "AB = BC" and "A, B, C are collinear", we have three points [tex]\( A \), \( B \), and \( C \)[/tex] lying on the same line.
When [tex]\( AB = BC \)[/tex], it means that the distance from point A to point B is equal to the distance from point [tex]\( B \)[/tex] to point [tex]\( C \)[/tex]. Geometrically, this implies that point [tex]\( B \)[/tex] is located exactly halfway between points [tex]\( A \)[/tex] and [tex]\( C \)[/tex] on the line.
So, in this scenario, [tex]\( B \)[/tex]serves as the midpoint of the line segment [tex]\( AC \),[/tex] dividing it into two equal parts. This is a fundamental property of collinear points and equality of segments in geometry.
Blake sold 52 tickets to the school play, and Jane sold 8 tickets. What is the ratio , in simplest form, of the number of tickets Jane sold to the number of tickets Blake sold?
y=2x+3 what type of graph represents the solutions of the equation?
Is -4.08 bigger or smaller than -4.7
Mrs.James has 22 students in her class.Mr.Williams has 24 students in his class.how many students are I'm the two class?
A pile of coins, consisting of nickels, dimes, and quarters, is worth $4.55. There are 4 more dimes than nickels and 3 quarters more than dimes. How many of each are there?
let: number of nickels = n then: number of dimes = n+4 and: number of quarters = (n+4)+3 = n+7 express total amount in cents $4.55 = 455 cents express total in cents by multiplying quantities of coins by value and adding them up. 455 = 5*n + 10*(n+4) + 25*(n+7) 455 = 5n + 10n + 40 + 25n + 175 240 = 40n n = 6 so number of nickels = 6. number of dimes = number of nickels + 4 = 6+4 =10 number of quarters = number of dimes + 3 = 10+3 = 13 There are 6 nickels, 10 dimes and 13 quarters.
Which of the following is the correct way to write seventy million as a numeral? 7000,0000 70,00,00,00 700,00000 70,000,000
solve for t in scientific formula d=rt
Please show work!!!!!!!
Ilya and Dan shared 360 hats in the ratio 7:5. How many more hats did Ilya have than Dan?
on monday, steven read o pages of his new book. To finish the first chapter on tuesday, he needs to read double the number of pages he read on monday. How many pages does he need to read on tuesday?
3.2=15.75+3.2d;Find d
PLZ SHOW WORK AND THEN EXPLAIN
A company earned $675 power washing driveways. They charged $45 to power wash each driveway. How many driveways did they power wash? A:10 B:11 C:14 D:15
The graph shows the solution to which system of inequalities?
A) y < x + 1 and y < x - 3
B) y ≤ x + 1 and y > x - 3
C) y ≤ x + 1 and y ≤ x - 3
D) y ≤ x + 1 and y ≥ x - 3
sneakers are normally $89.99 but are discounted to $56.49. what percent of the original does raymond pay?
What is the value of 1 + x ÷ 5, when x = 80?
What percent of 52 is 12? Round answer to the nearest tenth.
-3+ac=c-4 solve for c please help me out
Simplify this equation for me please, thanks :D
7/8m + 9/10 - 2m - 3/5