20 POINTS! ANSWER CORRECTLY FOR BRAINLIEST!!
Which of the following statements describes an interaction between the atmosphere and biosphere?
Water and its vapor move through air.
Earth's internal heat warms the layer of air around it.
Oceans provide an environment for sustaining marine life.
Life is possible on Earth due to layers of air that surround it.
6 men and 10 women can finish making pots in 8 days, while the 4 men and 6 women can finish it in 12 days. Find the time taken by the one man alone from that of one woman alone to finish the work.
Answer:
48 days
Step-by-step explanation:
Let us assume the following things
Work done by 1 man in 1 day is [tex]\frac{1}{x}[/tex]
Work done by 1 woman in 1 day is [tex]\frac{1}{y}[/tex]
It is mentioned that
six men + ten women finished in 8 days
So,
[tex]\frac{6}{x} + \frac{10}{y} = \frac{1}{8}[/tex] .............. (1)
And,
four men + six women finished in 12 days
[tex]\frac{4}{x} + \frac{6}{y} = \frac{1}{12}[/tex] ...............(2)
Now solve these two equations
And we assume [tex]\frac{1}{x}[/tex] be u and [tex]\frac{1}{y}[/tex] be v
So
Now the equation is
[tex]6u\ + 10v\ = \frac{1}{8} \\\\\4u\ + 6v\ = \frac{1}{12}[/tex]
So,
u = 1 ÷ 48 , v = 0
Therefore x = 48
So the time taken for finish the work is 48 days
Jack rabbits are capable of reaching speeds up to 40 mph how fast is this in feet per second round to the nearest whole number
Answer:
59 fps
Explanation:
40 mph = 58.6667 fps
Round 58.6667 to the nearest Whole Number: 59.
Sean is a bookworm. On average, he reads 1 1/2 pages in 3 1/3 minutes.
Sean's average unit rate for reading is
pages per minute.
Answer:
9/20 pages/minute = .45 pages/min
Step-by-step explanation:
3/2 pages / 10/3 minutes = 3/2 x 3/10 = 9/20 pages per minute or .45 pages/min
Jacob’s age is two years more than the sum of the ages of his siblings Becky and Micah. Which equation represents Jacob’s age?
A. z = x + y − 2; x represents Micah's age, y represents Becky's age, and z represents Jacob's age
B. x = y + z + 2; x represents Jacob's age, y represents Micah's age, and z represents Becky's age
C. x = 2 + y + z; x represents Becky's age, y represents Jacob's age, and z represents Micah's age
D. y = x + z − 2; x represents Jacob's age, y represents Becky's age, and z represents Micah's ag
Answer:
B.
Step-by-step explanation:
Hi! Here is the explanation!
When reading this question you need to make sure you know that sum and more than are words that can help to create equations. Jacob is 2 years older than becky and michas ages combined.
The equation would be:
y= 2+ (Becky's age+Micha's age)
I hope this helped!
3.5 m
What is the approximate circumference of the swimming pool? Use 3.14 as an estimate for ti.
Answer:
This question seems to be incomplete, I guess that we have a circular pool, with a diameter of 3.5 m.
Now, the circunference of a circle can be written as:
C = 2*pi*r
where:
pi = 3.14
r = radius = half of the diameter = 3.5m/2 = 1.75m
Then replacing those values in the equation for the circumference we have:
C = 2*3.14*1.75m = 10.99 m.
And knowing that the value of pi is actually larger than 3.14 (pi = 3.1415926535....)
We can safely round up the circumference to the next whole number, C = 11m
Answer:
11
Step-by-step explanation:
I took map test
The daily high temperatures, in degrees Celsius, for two weeks were recorded. The first week had a mean high temperature of 8 degrees Celsius and a mean absolute deviation (MAD) of 1 degree Celsius. Here is a list of the high temperatures, in degrees Celsius, for the second week. 5 9 7 0 3 5 5
Answer:
mean is 4.86
mean absolute deviation is 4.86
Step-by-step explanation:
The decimal 0.3 repeating represents 1/3. What type of number best describes 0.9 repeating, which is 3 times 0.3 repeating?
Answer:
4•5/5
Step-by-step explanation:
here 4.5 is numerator
and5 is denominator so
we divide4.5 by5
Solve for t.
Reduce any fractions to lowest terms. Don't round your answer, and don't use mixed fractions.
12t-2 < -5t + 3612t−2<−5t+36
Answer:
25.
Step-by-step explanation:
Answer:
t < 38/17
Step-by-step explanation:
T is the midpoint of PQ. PT=3x+8 and TQ = 5x-8. What is PT?
Answer:
PT = 32
Step-by-step explanation:
From the question, we are told that:
T is the midpoint of PQ
This means:
PT = TQ
PT=3x+8 and TQ = 5x-8
Step 1
We solve for x
3x + 8 = 5x - 8
Collect like terms
8 + 8 = 5x - 3x
16 = 2x
x = 16/2
x = 8
Step 2
We can solve for PT now
PT=3x+8
x = 8
PT = 3×8 + 8
PT = 24 + 8
PT = 32
Therefore, PT = 32
7 x 5 x35 = 701223123
Answer:
don't know how to answer that lol
Step-by-step explanation:
I need help with this
Answer:It is the last one 4 or J or D whatever
Step-by-step explanation:
just make it all over 24 to make it easier glad I could help :)
Answer:
The answer is J.
Step-by-step explanation:
14, 13 3/4, 13 2/3, 13 3/8, 13 1/4 is the answer
help please!!!!!!!!!!!!!!!!!!!!!!
Answer:
110,000
Step-by-step explanation:
since it covered 11,000 square miles at a rate of 0.10 miles per hour
11,000 /0.10=110000
Mr. Smith paid $232,300 for his home and $33,560 for his car. Mr. Lewton paid a total of $282,106 for his home and car combined. How much more money did Mr. Lewton pay than Mr. Smith for a home and car?
He Cost Saver Grocery Club sells sheet cakes. Each 14 sheet of cake requires 0.75 teaspoon of baking soda. Which expressions can be used to find the amount of baking soda needed for a whole cake? Select all the expressions that appl
Answer:
y = 4(0.75) or y = 3
Step-by-step explanation:
The question is incomplete. Here is the complete question:
The cost saver grocery club sells sheet cakes. Each 1/4 sheet of cake requires 0.75 teaspoon of baking soda. Which expression can be used to find the amount of baking soda needed for a whole cake? Select all the expressions that apply.
Let the amount baking soda required for a whole cake be y.
If each 1/4 sheet of cake requires 0.75 teaspoon of baking soda, the expression that can be used to find the amount of baking soda needed for a whole is as shown below;
1/4 sheet of cake = 0.75 teaspoon of soda
1 sheet of cake = y teaspoon of soda
cross multiply
1/4 * y = 1 * 0.75
y/4 = 0.75
multiply both sides by 4
y/4 * 4 = 0.75 * 4
y = 4(0.75)
y = 3 teaspoon of baking soda
Solve for n.
d=5m +9n
Answer: n= [tex]\frac{d}{9} - \frac{5m}{9}[/tex]
Step-by-step explanation:
d= 5m + 9n try to get 9n alone by subtracting 5m from both sides
d -5m = 9n Now divide both sides by 9 to get n alone
n = [tex]\frac{d}{9} - \frac{5m}{9}[/tex]
-9(m + 2) + 4(6 – 7m)
Negative 2 divided by 9
Answer:
-0.22222222222222
Step-by-step explanation:
hope this helps
Arectangle has length 2x+3 and width 7x+9. Write a polynomial in standard form that represents the perimeter of the rectangle. You MUST combine like terms. Do not write "P="[answer]
Answer:
18x+24 is the answer
Step-by-step explanation:
your brother travelled 134 miles in 2.25 hours to come home from school break at college. What was the average speed that he was traveling? (please include explanation pleasee)
Answer:
the right answer is 56.25
Simplify 6+3+32.4-2 A 22 B. 42 C. 36 D. 98
is 333/106 rational?
Answer:
No
Step-by-step explanation:
333/106 is actually an irrational number, because it can not be written as a simple fraction.
Answer: Yes it is rational
Any rational number is of the form p/q where p, q are integers. The value of q cannot be 0.
In this case, p = 333 and q = 106.
If 58 out of 100 students in a school are boys. Write decimal expression for the part of the school that consists of boys.
Answer:
0.58
Step-by-step explanation:
58/100 = 0.58
Since hundred has two zeros, it moves forward twice and hence the decimal point ends in front of the 5 making is 0.58
a rectangle with sides of length n+2 and n is compared to a square with sides of length n+1, are the two shape equal in perimeter?
Answer:
YES
Step-by-step explanation:
Rectangle: (n)+(n)+(n+2)+(n+2)=4n+4
Square: (n+1)+(n+1)+(n+1)+(n+1)=4n+4
4n+4=4n+4
Yes, they are equal in perimeter.
Answer:
they have equal perimeter.
Step-by-step explanation:
perimeter :-
.Rectangle=2(n+2+n)=2(2n+2)=4(n+1)
Square=4(n+1)
I'm just curious.... How do you divide fraction? THIS IS 15 POINTS..... BTW Do not cheat use your own words! :)
Answer:
To divide fractions take the reciprocal (invert the fraction) of the divisor and multiply the dividend. This is the quickest technique for dividing fractions. The top and bottom are being multiplied by the same number and, since that number is the reciprocal of the bottom part, the bottom becomes one.
Step-by-step explanation:
Answer:
By multiplying it by the reciprocal.
½÷⅑
½*9
9/2
4.5
Multiply the fraction on the left hand side by the reciprocal of the fraction on the right hand side.
OR
look at the picture above (I hope it helps you in a way)
The method shown in the picture is always correct, it never fails.
Hope this helps ;) ❤❤❤
3 thousandths + 2 hundredths is greater, less than or equal to 0.023
Answer:
Equal to
Step-by-step explanation:
I hope this helped
3 thousandths: 0.003
2 hundreths: 0.02
0.003+0.02= 0.023
Find the distance between points P(9, 5) and Q(2, 7) to the nearest tenth
Answer: 7.3
Step-by-step explanation:
To find the distance between these two points, find the difference in the x and y values then square them and add them then finally find the square root of that added number obtained.
5 - 7 = -2
9 - 2 = -7
-2^2 + -7^2 = d^2 where d is the distance
4 + 49 = d^2
53 = d^2
d = [tex]\sqrt{53}[/tex]
d= 7.2801 rounded to the nearest tenth is 7.3
Use the circle below to answer the following question.
What is the name for E?
Une segment
Point
Ray
Answer:
Point
Step-by-step explanation:
Describe a rigid transformation that takes Triangle A to Triangle B.
I cant answer that, I need a picture to the question Step-by-step explanation:
solve the equation: -2x = 4
Answer:
My answer to the question is
x= -2.
Answer:
x=-2
Step by step
{-2x}{-2}={4}{-2}