Answer:
48 hours
Step-by-step explanation:
So one Pipe can fill an empty pool in 12 hours, and a drain can empty the pool in 16 hours.
So let's just say that x is the value for how much the pool was filled, and y is the time taken.
So which means :
X = [tex]\frac{1}{12}y[/tex] - [tex]\frac{1}{16} y[/tex]
[tex]\frac{1}{12}[/tex] represents the volume of the tank being filled up in one hour while [tex]\frac{1}{16}[/tex] represents the volume of the tank being drained in one hour. By subtracting, we get to know the volume of the tank being filled up in one hour.
So, we solve the equation.
To find X, we make the denominator of the two fractions the same.
X = [tex]\frac{1}{12}y[/tex] - [tex]\frac{1}{16} y[/tex]
= [tex]\frac{1(4)}{12(4)}y[/tex] - [tex]\frac{1(3)}{16(3)}y[/tex]
= [tex]\frac{4}{48}y[/tex] - [tex]\frac{3}{48}y[/tex]
Then, we subtract.
[tex]\frac{4}{48}y[/tex] - [tex]\frac{3}{48}y[/tex] = [tex]\frac{1}{48}y[/tex]
[tex]\frac{1}{48}[/tex] is the volume of the pool that is filled in one hour
Finally, we find the time taken for the pipe to fill the pool.
If one hour fills [tex]\frac{1}{48}y[/tex] of the pool, then :
1 = [tex]\frac{1}{48}y[/tex]
y = 48 hours.
So, the time taken for the pipe to fill the pool with the drain left open is 48 hours.
HOPE THIS ANSWER HELPED :)Plz HURRY!!!
Which multiplication expression can be used to check this division problem: 2/5 divided by 4/15 = 3/2
O 2/5 times 4/15
O 3/2 times 4/15
O 3/2 times 15/4
O 5/2 times 15/4
Answer:
I'm pretty sure it's B
Step-by-step explanation:
Answer:
3/2 times 4/15
Step-by-step explanation:
In division, the quotient times the divisor equals the dividend. This multiplication can be used to check if the math was correct.
Here's an example:
6 / 3 = 2
6 is the dividend, 3 is the divisor, and 2 is the quotient.
2 times 3 is 6, which proves that the quotient times the divisor is the dividend , and it also means that the quotient was correct.
(This example was used because the numbers are nice and easy, so they are good examples for this kind of thing)
Which of the following statements is true?
The value π is a rational number.
The number 0 is a natural number.
The number 1/2 is an integer.
The number -5 is a real number.
Answer:
The value π is a rational number.
Step-by-step explanation:
Please Help! 66 points and Brainliest!
Two scientists are running experiments testing the effects of a vaccine on different control groups. The results are shown in the graph using the functions f(x) and g(x):
Which statement best describes the graph of f(x) and g(x)?
The graph of g(x) will eventually exceed the graph of f(x).
The graph of f(x) will eventually exceed the graph of g(x).
The graphs will both have their y-intercept equal to 5.
The graphs will both have their y-intercept equal to 2.
Answer:
The graph of g(x) will eventually exceed the graph of f(x).
Step-by-step explanation:
Since f(x) is linear and g(x) is exponential, g(x) will eventually exceed f(x). You can see it start to do so at the top of your graph.
Hope I help :)
Answer:
The graph of f(x) will eventually exceed the graph of g(x)
Step-by-step explanation:
Because g(x) has a steady growth rate, and f(x) is exponential (changes rapidly), f(x) will exceed the graph of g(x). This is can be seen happening at the top of the graph, where f(x) grows higher than g(x) at a faster rate.
Please someone please help, will mark you Brainliest
Read the problem carefully and write the required information:
Community Gym charges a $50 membership fee and a $55 monthly fee. Workout Gym charges a $200 membership fee and a $45 monthly fee. After how many months will the total amount of money paid to both gyms be the same? What will that amount be?
What are you looking for?
Define a variable:
Write the equation:
Solve the equation:
What will the amount of money be when the total amount of money paid to both gyms is the same?
Answer:
Step-by-step explanation:
Community gym
=> membership fee = $50
=> monthly fee = $55
=> First month = 105$
=> 50 + 55(x)
=> 50 + 55 (15)
=> 50 + 825
=> 875
Workout gym
=> membership fee = $200
=> monthly fee = $45
=> First month = 245$
=> 200 + 45(x)
=> 200 + 45(15)
=> 200 + 675
=> 875
On the 15th month, community gym and workout gym will both get the same amount of $875.
Answer: what are you looking for? after how many months will the total amoung of money paid to both gyms be the same? Define a variable: I'm not sure. Write the equation, community Gym 50 + 55(x), workout gym 200 + 45(x), solve the equation. on the 15th month, community gym and workout gym will both get the same amount of $875.
Step-by-step explanation:
Differentiate between a fixed and movable pulley.
Answer:
Step-by-step explanation:
A fixed pulley consists of a wheel fixed to a shaft and is used in conjunction with a belt to transfer energy to another fixed pulley. A movable pulley consists of a shell, a movable wheel and a rope. Movable pulleys are also know as block and tackle.
You can use the expression 2e+2w to find the perimeter of a rectangle where e is the length and w is the width. Interpret the coefficients of the terms.
Answer: The coefficient of terms is 2 represents length of 2 equal and opposite sides of rectangle.
Step-by-step explanation:
A rectangle is a 4 sides closed quadrilateral where opposite sides are equal .
So , length of one pair of opposite is represented by 'l' [l= length]
Such that sum of these two sides = l+l=2l
The other pair of opposite sides s represented by 'w' [w= width]
Such that sum of these two sides = w+w=2w
Perimeter is the sum of sides.
So, perimeter of rectangle = 2l+2w.
The coefficient of terms is 2 represents length of 2 equal and opposite sides of rectangle.
PLZ HELP AND CAN U PLZ EXPLAIN
please help me solve this
NEED HELP ASAP NEXT QUATER IS TODAY
Two bags of cereal are packed in a box. The total weight of the box and the two bags of cereal is 50.00 ounces. One bag of cereal weighs 14.06 ounces, the other weighs 20.15 ounces. How much does the box weigh? (2 points)
15.79 ounces
15.22 ounces
15.25 ounces
14.89 ounces
Answer:
15.79 ounces
Step-by-step explanation:
50−(14.06+20.15)
please help!!!
I don’t understand
Answer:
y = -2/5x - 6
Step-by-step explanation:
Slope intercept follows the y = mx + b, which m is the slope, and b is the y intercept.
1. Find the slope:
The formula for slope is the change in y/ over the change in x. Or you can say rise/run.
In other words you can take any of those 2 dots, first count them to the other dot, which is -2, then count horizontally, which is 5, so the slope is -2/5
Another way:
Another way is to take any two points, like (-10, -2), and (-5, -4).
Then we can do -4 -(-2)/-5 -(-10), which is -2/5.
So the equation we have so far is y = -2/5x + b
2.Find the y intercept
Based on the graph, the y intercept is -6, so we get
y = -2/5x - 6
PLEASE HELP QUICKLY
What is the value of y
Answer:
y= 8
Step-by-step explanation:
In a Triangle we know,
W+Y+X=180 degree
then,
(180-52)+(4y-4)+3y=180
or, 128+4y-4+3y= 180
or, 7y= 180- 124
or, y= 56/7
or, y= 8
hope you got it.
Solve for X in this parallelogram
Find the slope of the line that goes through the given points. (-10, -3) and (-7, -9)
Answer:
-2
Step-by-step explanation:
rise over run or, y2-y1/x2-x1
Ari thinks the perfect milkshake has 333 ounces of caramel for every 555 scoops of ice cream. Freeze Zone makes batches of milkshakes with 666 ounces of caramel and 888 scoops of ice cream.
What will Ari think about Freeze Zone's milkshakes?
Answer:
Ari will think that Feeze Zone makes milkshakes with too much caramel.
Step-by-step explanation:
First off I took 3 ounces of caramel to 5 scoops of ice cream, which makes a ratio of 3/5.
Freeze Zone makes milkshakes with 6 ounces of caramel, so I multiplied the 3 and the 5 by two to get 6 ounces of caramel for the ratio.
once you multiply the ratio by two it becomes 6/10 and the milkshakes that Freeze Zone makes are 6/8, so they have more caramel than Ari likes.
Sorry if the explanation is a little confusing, I hope it helped :)
On Wednesday a local hamburger shop sold a combined total of 304 hamburgers and cheeseburgers. The number of cheeseburgers sold was three times the number of hamburgers sold. How many hamburgers were sold on Wednesday?
Will mark if it is an actual correct answer with an actual explanation
Answer:
It would be 76 hamburgers were sold on Wednesday
Step-by-step explanation:
I divided the total 304 by 4 and got 76. Then when you multiply that out you get a total of 304
Yesterdays afternoon temperature was 21 °F. It plunged overnight to -3 °F. How many degrees did the temperature drop?
A. 3°
B. 18°
C. 21°
D. 24°
Answer:
the answer is b. 18
a person has 80 followers on social media. The number of followers tripled each year. How many followers will she have after 4 years. Explain your answer
I was wrong sorry:(
the second one is correct
Answer:
6,480 followers
Step-by-step explanation:
1 year = 80(3) = 240
2 years = 240(3) = 720
3 years = 720(3) = 2,160
4 years = 2,160(3) = 6,480
Consider the equations shown: ax + by = ab & 2ax + 3by = 3b Which of these is the value of y in terms of a? Option 1 : y = 3a – 35 Option 2 : y = 2ab – 3b Option 3 : y = 9a – 35 Option 4: y = 3 – 2a
Answer:
Option 4: y = 3 – 2aStep-by-step explanation:
Given the simultaneous equation;
ax + by = ab ......... 1
2ax + 3by = 3b .....2
Required
Express y in terms of a
Using elimination method to eliminate x variable.
eqn 1 * 2 and eqn 2 *1 will give;
2ax + 2by = 2ab
2ax + 3by = 3b
Subtract
2by - 3by = 2ab - 3b
-by = 2ab - 3b
-by = b(2a-3)
-y = 2a-3
multiply through by -1
y = -2a + 3
y = 3-2a
Hence the value of y in terms of a is y = 3-2a
Evaluate the exponential expression using the order of operations.
(6+3)4
Answer:
36.
Step-by-step explanation:
6 plus 3 is 9 and 9 times 4 is 36, hope this helps.
THIS IS DUE SOON!!! PLEASE HELP MEEEE!
Whats 200×47280 ? Thank you!
Answer:
9456000
Hope this helps!!!1!
Answer:
I got 9456000
Step-by-step explanation:
Please answer correctly !!!!!!!!!!!!!!!!!!! Will mark brainliest !!!!!!!!!!!!!!!!!!!!
Answer:
x= 53 and y= 143
Step-by-step explanation:
x= 90-37
x= 53
y= 53+90
y= 143
-7(a – 9) 2-77
Answer please
Answer:
-7 x (2a - 7)
a rectangle length is 3 times its width. The area is 27 square inches
I need help on this question
Pls help me I have no idea
Answer:
130 degrees
Step-by-step explanation:
ABF and BFE are alternate angles. So BFE is 65
BG=FG so FBG is 65. x the exterior angle is 65+65=130 degrees
What is the formula for calculating the efficiency of a heat engine?
Answer:
StartFraction T Subscript h Baseline minus T Subscript C Baseline over T Subscript h Baseline EndFraction times 100
Step-by-step explanation:
could i have brainliest plz i so close to next rank
Answer:
its a
Step-by-step explanation:
En Faiz deposits a sum of Rm 18000 in a bank with interest rate of 4.5% per annum and compounded
once every 4 months. Find En Faiz's total savings at the end of the year.
Answer:
4.5 divide 100 x RM18000
4.5% is 810
810 x 3 = RM2430
RM 2430 is the total savings at the end of the year
Find the measure of ∠Z.
45°
75°
105°
Answer:
75
Step-by-step explanation:
X and Y are the same so Y would be 105 as well. The trapezoid as a whole equals 360 degrees. Take 360 and subrtract 105 twice and you'll get 150. Divide 150 by 2 and you'll get 75. W and Z will both equal 75.
Will give Brainlyest answer!
Answer:
c
Step-by-step explanation:
