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mafiozo [28]
3 years ago
13

Your pump empties the water from a swimming pool in 6 hours. When your friend's pump is used together with your pump, the pool i

s emptied in 1.5 hours. How long (in hours) does it take your friend's pump to empty the pool when working alone? Hour(s)
Mathematics
1 answer:
Ivan3 years ago
7 0

(I'm sorry if this is wrong, I'm bad at math but this one was pretty simple really) 6-1.5=4.5

Hope this helps! Let me know

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Emma has a board 5 feet long and cuts it into 6 equal pieces how long in feet is eacgpeace if the board in a fraction
il63 [147K]

Answer:

Imagine an easier version of this problem:  You have a board 5 feet long that you must cut (divide, right?) into two equal parts.  It is probably clear to you that you simply divide the length (5) by the number of parts you're dividing it into (2) to obtain the length of each piece (2.5 feet).

Use the same method for your problem 5 feet divided by 6 is 0.83 feet per piece.

We do not ordinarily divide feet into decimal portions, but instead into inches.  Since an inch is 1/12 of a foot, you could simply say 5/6 = how many twelfths?  or 5/6 = n/12  Solve this by inspection or by cross multiplying 5 times 12 equals n times 6.  So n must equal 10, and your pieces of board are each 10 inches long.

4 0
2 years ago
Consider the following sets: R = {x | x is the set of rectangles} P = {x | x is the set of parallelograms} T = {x | x is the set
Liula [17]
"T is a subset of P"

Not true since triangle has three sides but parallelogram has four sides.

"E is a subset of I"

True since equilateral triangles are isosceles triangles with all angles equal.

"S is a subset of T"

True since scalene triangles are still triangle.

"I ⊂ E"

False since there are isosceles triangles those are not equilateral triangles. Namely triangle with angles 20°, 20°, 140°

"T ⊂ E"

False since not all triangles are equilateral. Scalene triangle is one of counterexamples.

"R ⊂ P"

True since rectangles are parallelograms with right angles.

Final answer: <span>E is a subset of I, </span>S is a subset of T, and R ⊂ P.

Hope this helps.
6 0
3 years ago
Read 2 more answers
Straight line depreciation. A car has an initial value of 29,564 and depreciates 532 a year . V represents value of car after t
LenaWriter [7]
V=29,564-532t would be the equation for that scenario
5 0
3 years ago
Twenty-four students took a test. Fourteen students earned an A and 8 students earned a B. A student will be randomly chosen. Wh
Fofino [41]
Answer is 7/12 I know it is because, well I just know it is 
8 0
3 years ago
Santa's Wonderland is an extravagant holiday light display that is open from early November through January each year. The entry
Fofino [41]
Ok,
 f(0.35)= 7f/20

f(-5.2)=-26f/5

f(10)= 10f

f(-0.5)= -f/2

as for the last question I am not quite sure, sorry....hope I helped a little :)

5 0
3 years ago
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