Complete question is;
The city just assigned a second garbage truck to empty the bins in Kat’s neighborhood on trash day. The crew from the first garbage truck used to empty all the bins by themselves in 5 hours. In their training, it took the crew from the second garbage truck 8 hours to empty all the bins. When the two crews start working together, what part of all the garbage bins will the first garbage truck empty? To the nearest tenth, the first garbage truck will empty about of all the bins.
Answer:
Part of all bins first garbage truck will empty = 0.6
Step-by-step explanation:
Let the total number of bins emptied be denoted by n.
We are told that the crew from the first garbage truck empties all the bins in 5 hours. Thus
Work rate = (n/5) bins/hr
We are told the second garbage truck empties in 8 hours. Thus;
Work rate = (n/8) bins/hr
When both garbage trucks work together, the total amount of time spent will be denoted by x. Thus;
((n/5) + (n/8))x = n
Divide through by n to get;
x/5 + x/8 = 1
Multiply through by 40 to gwt;
8x + 5x = 40
13x = 40
x = 40/13 hrs
To find the part of all the garbage bins the first garbage truck empty when they work together, we will simply multiply the value of x by the work rate of the first garbage truck. Thus;
Part = (n/5) × (40/13)
Part = (40/65)n = 0.615 of n
To the nearest tenth gives 0.6 of n
10.In Star School, the ratio of students who bring
lunch from home to those who buy it at tuck-shop
is 11:3. If 87 buy their lunch, how many students
are there at the school?
Answer:
There are 406 students in the school
Step-by-step explanation:
Let the number of students in the school be x
The total ratio is 11 + 3 = 14
The ratio that buys lunch is represented by 3
So, we have it that;
3/14 * x = 87
3x = (14 * 87)
x = (14 * 87)/3
x = 406
Can someone help me out my grads are bad
What is the area of the pentagon shown below?
6 ft
1
6 ft 1
1
9 ft
3 ft
Answer:
61.94 ft²
Step-by-step explanation:
Which expression represents the following algebraic statement?
Four times the difference of a number and 16.
A table measures 76.2 centimeters in length. Write an equation to find the length of the table in inches. Solve the equation. Show your work.
(1 inch = 2.54 centimeters)
Answer:
76.2 / 2.54 = 30
Step-by-step explanation:
(Centimeters of table) / (Centimeter to inch conversion rate) = (Inches of table)
The value of all of the quarters and dimes in a parking meter is $6. There are twice as many quarters as dimes. What is the total number of dimes in the parking meter?
Answer:
5 brainliest?
Step-by-step explanation:
56 students signed up to go on the class trip. If this is 70% of the class, how students are in class?
Answer:
80 is the answer I believe
Answer:
80. 56 students signed up to go on the class trip. If this is 70% of the class, how students are in class?
How do I write the answer out in explanation form
Use the relationships between the angles to find the value of . 75° 40 X 15 degrees
Answer:
x = 65
Step-by-step explanation:
All angles in the triangle equal 180
Set up your formula as
180 = x+75+40
180-75-40=x
65=x
a, b, and c are all vectors that have the same direction.
a + b = c
The magnitude of a = 6 and the magnitude of b = 8.
Find the magnitude of c.
Answer:
14 = c
Step-by-step explanation:
it is just like u said;
a + b = c
6 + 8 = c = 14
(it could also be 8-6 = c = 2)
Writing is not that easy...but grammarly can help! this sentence is grammatically correct, but it's wordy and hard to read :0
Answer:
wow 1555
Step-by-step explanation:
no no dont touch me there this is y uhbeyufbeb
Can someone help me out my grads are bad
Answer:
50 m^2
Step-by-step explanation:
3cm = 5 m
6 cm = 10 m
5 x 10 = 50 m^2
If my answer is incorrect, pls correct me!
If you like my answer and explanation, mark me as brainliest!
-Chetan K
Answer:
50 [tex]m^{2}[/tex]
Step-by-step explanation:
3cm = 5m
6cm = 10m
5x10 = 50
A trapezoid has a height of 12 feet,
and base measurements of 15 feet and
10 feet. What is the area?
[?] square feet
Hint: The formula for the area of a traxzod is to
▬▬▬▬▬▬▬▬▬▬▬▬▬▬
Given :→ Base = 15 and 10
→ Height = 12
To Find :→ Area of trapezoid
Solution :→ Area of Trapezoid = (a + b)/2 × h
= (15 + 10)/2 × 12
= 150 ft²
∴ The area of Trapezoid is 150 ft²
▬▬▬▬▬▬▬▬▬▬▬▬▬▬
please please please help!
AD = ___ units
SOLVE FOR X
5+x/2=4
5 plus x/2 is written in fraction form,5+x on top and the number 2 underneath. that fraction equals 4
Answer:
Solution given:
5+x/2=4
x/2=4-5
x=-1×2
x=-2
What is the difference between the percentage of the female students who preferred pizza and the percentage of the male students who preferred pizza?
Answer:
35%
What is a percentage?
A percentage is a way of representing how much of a whole is present. Like a decimal or a fraction, a percentage is another form of showing these ratios and portions.
Finding Necessary ValuesFrom the chart, we need to find how the total number of female students and the total number of male students.
Female
[tex]18+12=30[/tex]
Male
[tex]5+15=20[/tex]
Solve - Female Students with Pizza Preference
First, take the number of female students that prefer pizza and divide it by the total number of female students.
[tex]\displaystyle \frac{18}{30}[/tex]
[tex]\displaystyle \frac{3}{5}[/tex]
Convert the fraction into a decimal by using a calculator.
[tex]\displaystyle \frac{3}{5} = 0.6[/tex]
Then, convert the decimal to a percentage by multiplying by 100.
[tex]0.6\times100=60\%[/tex]
The percentage of female students who preferred pizza is 60%.
Solve - Male Students with Pizza PreferenceTake the number of male students that prefer pizza and divide it by the total number of male students.
[tex]\displaystyle \frac{5}{20}[/tex]
[tex]\displaystyle \frac{1}{4}[/tex]
Convert the fraction into a decimal by using a calculator.
[tex]\displaystyle \frac{1}{4}=0.25[/tex]
Then, convert the decimal into a percentage by multiplying by 100.
[tex]0.25\times100=25\%[/tex]
The percentage of male students who preferred pizza is 25%.
Solve - Find the DifferenceFinally, subtract the percentage of male students who preferred pizza from the percentage of female students who preferred pizza.
[tex]60\%-25\%=35\%[/tex]
The final answer is 35%.
If L | | m and m<8 = 109°, what is m<5
Answer:
m∡5 = 71°
Step-by-step explanation:
m∡8 = m∡6
m∡6 + m∡5 = 180
180 - m∡6 = m∡5
180 - 109 = 71
Answer:
the measurement of angle 5 is 71
Step-by-step explanation:
m∡8 = m∡6
M∡6 + m∡5 = 180
180 - m∡6 = m∡5
180 - 109 = 71
Hope this helps :)
brainliest goes to whoever answers the question correctly also if you want more points answer my other questions
Answer:
B
Step-by-step explanation:
Amanda does start with 30 homework questions
She does complete 3 questions every 2 minutes
After 10 minutes she has completed half of her questions
But she does not finish 2 questions every 3 minutes
hope this helps <3
A card is chosen at random from a standard deck of 52 playing cards. What is the probability that the card chosen is a queen?
A) 4
B) 1/13
C) 1/52
D) 3/52
Answer:
B) 1/13
Step-by-step explanation:
This is because as we all know there are four different category of cards - spades, clover, heart and diamond.
In each of these category we have 1 Queen so in total we have 4 Queens
Probability of choosing Queen = 4/52
= 1/13
(This is your answer hope it helps :))
AYUDA estoy atrapada!!!!!!!!!!!
Resuelve las siguientes ecuaciones
a) 2 000 + x = 3x – 1 000
b) 5m -7 = 13 – 3m
c) 6n +6 = 4n +12
d) 7x + 12 = 5x + 20
e) 5x + 3 = 2x + 9
Answer:
a) x = 1500
b) m = 2.5
c) n = 3
d) x = 4
e) x = 2
Step-by-step explanation:
Just remember that whatever you do to one side of the equation, you must do to the opposite side. Your aim is to isolate x.
Find the surface area of the figure below
Answer:
264
Step-by-step explanation:
15 times 6 equals 90
5 times 15 equals 75 75 times 2 equals 150
4 times 6 over 2 times 2 equals 24
Chanel found a used bookstore that sells pre-owned DVDs and CDs. DVDs cost $9 each, and CDs cost $6 each. Chanel can spend no more than $108.
The question is incomplete. Kindly see the correct question below
Chanel found a used bookstore that sells pre-owned DVDs and CDs. DVDs cost $9 each, and CDs cost $6 each. Chanel can spend no more than $108 Write an inequality that represents this
Answer:
9D +6C < 108
Step-by-step explanation:
Let the price of Dvd be D
Let the price of CDs be C
Hence the inequality can be represented as follows
9D + 6C < 108
Michael is writing an article for the school newspaper. He wants to know which subject (math, reading, science, history, or physical education)
is most liked. He is trying to decide who to survey.
Which population sample does NOT produce a biased result?
A. He asks the school’s teachers
B. He asks his friends after school
C. He asks the students in his math class
D. He asks students he meets in the hallways
E. He asks every fifth student arriving at school
Answer: E is the answer
Step-by-step explanation:
The population sample that does not produce a biased result is when he asks every fifth student arriving at school. The correct option is E.
What is a survey?Surveys can be used to determine how representative each person's opinions and experiences are.
When conducted properly, surveys offer precise data about people's beliefs and actions that can be utilized to inform significant decisions.
A huge population's characteristics can be described through surveys. No other research methodology can offer such a wide range of capabilities.
This guarantees a more accurate sample to collect focused results from which to draw conclusions and make significant judgments.
Survey bias is when a question is worded or presented in a way that encourages individuals to select one response over another.
The same holds true if your queries are challenging for customers to comprehend and honestly answer.
As, when he asks every fifth student arriving at school, it can lead to an unbiased result.
Thus, the correct option is E.
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Question 4
What is f(-5) for the function f?
f (x) =
9(x-11)
4
90x="
answer: [x]
Answer:
-36
Step-by-step explanation:
replace x with -5 and solve for the parenthesis and then take that number which would be -16 and multiply it by 9 which then would give you -144. So then you would take -144 and divide it by 4 and your answer would be -36.
please find the missing side of this triangle
I really really really need your help
three less than a number what is the value of the expression if the number is equal to -1?
Answer:
n-3
(-1)-3=-4
hope this helps
have a good day :)
Step-by-step explanation:
The expression (1.2045) models the interest charged for a student loan over time, t, in years. Which of the followilly
situation? Select all that apply.
The yearly interest rate is about 16%
The daily interest is about 0.04%
The yearly interest rate is about 116%
The monthly interest rate is about 1.2%
The daily interest rate is about 1.0004%
4.Complete each of the following BRAINIEST and 50 points its just Trigeometry
Answer:
#1:
cos a = opp/hyp = cb/ca
tan a = opp/ajd = cb/ab
sin c = adj/hyp = ab/ca
cos c = opp/hyp = ab/ca
tan c = opp/adj = ab/cb
2: *i dont have the square root symbol*
sin 60 = 3/2
cos 60 = x/2
tan 60 = 3/x
sin 30 = x/2
cos 30 = 3/2
tan 30 = x/3
3: *i dont have the square root symbol*
sin 45 = 2/x
cos 45 = x/2
tan 45 or 48 = x/y
How do you write 0.000010 in scientific notation?
Answer:
1 × 10^(-5)
Step-by-step explanation:
The scientific notation of the given number is 1.0×10⁻⁵.
What is scientific notation?Scientific notation is a method for expressing a given quantity as a number having significant digits necessary for a specified degree of accuracy, multiplied by 10 to the appropriate power such as 1.56×10⁷.
The given number is 0.000010.
Here, scientific notation is
1.0×10⁻⁵
Therefore, the scientific notation of the given number is 1.0×10⁻⁵.
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