Answer:
B
Step-by-step explanation:
We can create the equation step-by-step:
Each row of bricks is 6.5cm and the number of row of bricks is r: 6.5r
Total of height of wall: = 259cm
Top row is 1cm shorter: -1cm
Combine all the terms together and we get: 6.5r - 1 = 259
Which means each row of bricks is 6.5cm but minus 1cm from the top to get 259cm the total :D
Arsenic is toxic to humans, and people can be exposed to it through contaminated drinking water, food, dust, and soil. Scientists have devised an interesting new way to measure a person's level of arsenic poisoning: by examining toenail clippings. In a recent study,1 scientists measured the level of arsenic (in mg/kg) in toenail clippings of eight people who lived near a former arsenic mine in Great Britain. The following levels were recorded: 0.8, 1.9, 2.7, 3.4, 3.9, 7.1, 11.9, 26.0
Do you expect the mean or the median of these toenail arsenic levels to be larger?
Answer:
The mean, because the outlier values are above the mean.
Step-by-step explanation:
Mean of a data-set:
The mean of a data-set is given by the sum of all values of the data-set divided by the number of values.
Median:
The median of a data-set is the value that separates the lower 50% from the upper 50% of the sorted set.
0.8, 1.9, 2.7, 3.4, 3.9, 7.1, 11.9, 26.0
Finding the median, since it is easier.
8 values, the median is the mean between the 4th and the 5th values. (3.4+3.9)/2 = 3.65
The values below the median are quite close to it, while those above it are considerably more distant, considered outliers, which means that we should expect the mean to be larger than the median.
Divide 81/20 how to divide please give step by step explanation
Hi there!
[tex]81*20=4\frac{1}{20}[/tex]
Let see how much 20 goes into 80:
[tex]20,40,60,80[/tex]
That would be 4 time...
Subtract terms with terms:
[tex]81-80=1[/tex]
Remainder would be 1.
Convert term into fraction:
[tex]\frac{1}{20}[/tex]
Final Result:
[tex]4\frac{1}{20}[/tex]
Ruben's football team lost 2 yards, which means went backwards, on their last play. Which integer best represents this?
Answer:
-2
Step-by-step explanation:
Integers can be positive or negative.
4 x 2/3 is less than 2/3 , since 2/3 is less than 1 is true or false ?
Answer = FALSE because
4×2/3 = 4
it less than 2/3 since 2/3 = 0
so answer will be false
What value of x would make AABC an isosceles triangle?
А
C с
2x + 4
3x - 8
Step-by-step explanation:
step 1. 2x + 4 = 3x - 8
step 2. x = 12.
Find the missing length.
Matematik 5. Sınıf Test Kitabı Arıyorum. Önerilerinizi Yazarsanız Sevinirim.
Answer:
Matemito Matematik Atölyem 5 - Arı Yayınlarının
Step-by-step explanation:
Hoca Kaynak olarak aldırdı çok iyi.
Compare the fractions using >,<, or = 3/15 and 1/3
Answer:
3/15 < 1/3
Step-by-step explanation:
We have two fractions, 3/15 and 1/3. The question is asking us to compare them using the less than sign <, greater than sign >, or equal sign =.
To solve this question, what we must do is try to get both fractions the same denominators, which will be done through multiplying 3 by a certain number to get to 15, then doing the same for the numerator.
So what multiplied by 3 gets us 15?
5.
Multiply both the numerator and denominator by 5.
[tex]\frac{1*5}{3*5}[/tex]
[tex]\frac{5}{15}[/tex]
Now that they both have the same denominator, we can compare and see which is bigger.
5/15 (1/3) and 3/15.
By this we can see that 3/15 is less than 5/15.
Therefore 3/15 < 1/3
Henri challenges Emile to a walking race. Because Emile's walking rate is faster, Emile gives Henri a 45-meter head start. Emile knows his brother would enjoy winning the race, but he does not want to make the race so short that it is obvious his brother will win. How long should the race be so that Henri will win in a close race?
Answer:
about 29 seconds and 74 meters
Step-by-step explanation:
PLEASE HELP! WILL MARK BRAINLIEST
Answer:
I don't know Im sorry
Step-by-step explanation:
What is 4w^2? Plz answer!!!
Fill in the measures of the following angles and side lengths. All answers will be numbers.
Answer:
Step-by-step explanation:
BED=52
BAC=43
B=180-43-52=85
DE/8=15/12, DE=10
BC/15=9/10, BC=13.5
(9+EC)/15=9/10, 9+EC=13.5, EC=4.5
BD/10=12/15, BD=8
Pls help I’ll brain lest ASAP
Which equation represents the line through the points (3,2) and (-9,6) ?
x + 3y = 9
3x - y = -9
O x - 3y =9
3x + y =9
Answer:
Step-by-step explanation:
(3,2),(-9,6)
slope = (6 - 2) / (-9 - 3) = -4/12 = -1/3
y = mx + b
slope(m) = -1/3
use either of ur points...(3,2)....x = 3 and y = 2
now we sub into the formula and find b, the y int
2 = -1/3(3) + b
2 = -1 + b
2 + 1 = b
3 = b
so ur equation is : y = -1/3x + 3 <==
A bucket contains 13 & 1/3 gallons of water and is 5/6 full. How many gallons of water would be in a full bucket?
Answer:
16
Step-by-step explanation:
Answer:
17 2+2+2+2+2+2+2+2+1
Step-by-step explanation:
the bucket contains 13 and 6
A college alumni office is choosing a new alumni board of 12 people. They have 25 total applicants.
How many different combinations without repetition of 12 people are there?
Answer:
5200300
Step-by-step explanation:
Use Combination
25C12=25!/12!(25-12)!The different combinations without repetition of 12 people will be equal to 5,200,300.
What is a Factorial?When a whole number is multiplied by each natural number underneath it, the result is known as its factorial. The symbol "!" can represent the idea of a factorial. As a result, "n factorial" is just n and is defined as the sum of the first n natural integers.
As per the given information in the question,
Total number of people chosen by the board = 12
Total number of applicants = 25
Then the number of combinations without repetition will be = ²⁵C₁₂
= [tex]\frac{25 !}{12!(25-12)!}[/tex]
= 25!/(12! × 13!)
= 5,200,300
To know more about Factorial:
https://brainly.com/question/16745729
#SPJ2
72 paper clips to 63 paper clips
Answer:
72>63
Step-by-step explanation:
what is the rest of the question like in what form
Which of the following is the equation for the line of symmetry in this figure?
Help please
Answer:
Y=-2
Step-by-step explanation:
-2y is right in between the figure.
Hope this helps!
Write the fraction in lowest terms.
14/37
I will mark you brainlest if you get this question correct
Answer:
12, 17, 30.
Step-by-step explanation:
Given
(a) to (d)
Required
Which cannot represent a triangle
The rule to use is:
[tex]a + b > c[/tex]
So, we have: 12, 17, 30.
[tex]12 + 17 > 30[/tex] ===> [tex]29 > 30[/tex] --- False
[tex]12 + 30 > 17[/tex] ==> [tex]43 > 17[/tex]
[tex]17 + 30 > 12[/tex]
Because, one of the inequalities is False, then this can not represent the sides of a triangle.
Please help math 1-2 high school solving proofs.
Answer:
1= A
2= C
Step-by-step explanation:
I think this is right I'm not sure but I think it is.
hope this helps :)
(WILL MARK BRAINLIEST) 16 POINTS!
GRAPHING LINEAR EQUATIONS. (picture below)
the map below shows certain locations in town. Use the map and the box of equations at the right to answer the questions below.
Step-by-step explanation:
Gas Station (2,7) -> y = [tex]\frac{1}{2}[/tex]x + 6 if you plug in the numbers it becomes 7 = 1 + 6
Grocery Store (6,3) -> x + 6y = 24 plug in the numbers it becomes 6 + 18 = 24
Bowling Ally (1, -3) -> 6x + 3y = -3 plug in numbers 6 -9 = -3
Movies (7, -7) -> y = -7 because the y coordinates for the movies = -7
Park(-2, -4) -> -6x + 2y = 4 plug in the numbers 12 - 8 = 4
Coffee Shop (-6, -8) -> -10x + 5y = 20 plug in the number 60 - 40 = 20
Gym (-8, -3)-> y = - [tex]\frac{1}{2}[/tex]x - 7 plug in the numbers -3 = 4-7
School (-6, 6) -> y = - [tex]\frac{1}{3}[/tex]x +4 plug in the numbers 6 = 2 + 4
6x + 3y = -3 quadrant II is (-x, y)
rearrange the equation:
3y = -6x - 3
y = -2x - 1
if x is -1, y will be 2 -1 = 1. So another solution for this equation is (-1, 1).
What is m/3 = -12 I really need help with problem please help
Answer:
m=-36
Step-by-step explanation:
(3)m/3=-12(3) multiply by three to cancel out
m=-36
hope this helps :)
Question:
m/3 = -12
Answer:
m=-36
-36/3=-12
What is the mass of a truck if it
produces a force of 14000 N while
accelerating at a rate of 5 m/s/s?
Answer:
force (f)= 14000N
acceleration (a)=5m/s²
mass (m)=?
we have,
f=ma
14000=m×5
14000/5=m
2800=m
therefore Mass is 2800kg
The ratio of the length to the width of a map is 5 to 2. The map is exactly 15 inches in length. What is the width of the map? A. 6 inches B. 7 inches C. 10 inches D. 12 inches
Suppose that in 6 minutes, 54 gallons of water came out of a pipe. What was the rate in gallons per minute?
Answer:
9 gallons per minute
Step-by-step explanation:
If there are 54 gallons that came out of a pipe within 6 minutes, then we divide 54 by 6 to get how many would come out in 1 minute.
54/6 = 9.
17. Which is M=9pn solved for p? (1 point)
p = M/n p= M-9n. p= 9n/M. p=M/9n
B 56
Step-by-step explanation:
kathy plans to bake 2 types of cookies to take to the party. She needs to be sure she has enough ingredients. The chocolate chip cookies use 2 1/4 cups of flour, the sugar cookies use 2 2/3 cups of flour. How much flour will she need?
Answer:
I think she will need One and 1/2 cups of flour
Step-by-step explanation:
please let me if I RIGHT
The temperature early in the morning is 15 °C. The temperature increases by 2 °C for every hour for the
next 5 hours. Write a function for the temperature in degrees Celsius.
f(h)=
Lowe's put an advertisement out looking for a department Asst. Manager. They pay
$850 weekly. If Joshua accepts the job, what will he make annually
Answer:
40800
Step-by-step explanation:
4 weeks = 1 month
So we use,
850 * 4 = 3400 (monthly)
12 months = 1 year
So we use,
3400 * 12 = 40800 (annually)