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Doss [256]
3 years ago
15

Using the numbers 3, 5, and 8, can you write nine proper fractions and nine improper fractions? You may use each number only onc

e within a fraction.
Mathematics
1 answer:
Iteru [2.4K]3 years ago
8 0

Answer:

9 proper fractions:

3/5,3/8,5/8,3/40,5/24,8/15,3/13,5/11,2/8

9 improper fractions:

8/3,8/5,5/3,24/5,40/3,15/8,11/5,13/3,8/2

Step-by-step explanation:

Proper fraction:

Proper fraction are the fractions in which the numerator is less than the denominator and the value of proper fractions is less than 1.

x/y is proper fraction if x<y and x/y<1

Improper fraction:

Improper fraction are the fractions in which the numerator is greater than the denominator and the value of proper fractions is more than 1.

x/y is improper fraction if x>y and x/y>1

Given numbers: 3,5,8

Making 9 proper and improper fractions with above given numbers with condition to use each number only once within a fraction.

nine proper fractions: (x/y is proper fraction if x<y and x/y<1)

3/5

3/8

5/8

3/(5)(8)= 3/40

5/(3)(8) = 5/24

8/(3)(5) = 8/15

3/(5+8) = 3/13

5/(3+8) = 5/11

(5-3)/8 = 2/8

nine improper fractions: (x/y is improper fraction if x>y and x/y>1)

8/3

8/5

5/3

(8)(3)/5 = 24/5

(8)(5)/3 = 40/3

(5)(3)/8 = 15/8

(3+8)/5 = 11/5

(5+8)/3 = 13/3

8/(5-3) = 8/2 !

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A piece of duct measures 48 inches. When pieces are fitted together, 1 72 inches is lost connecting each successive length of du
statuscvo [17]

Answer:

A piece of duct measures 48 inches.

In each connection, we lost 1.72 inches (it also could be 1/2 inches, but i will go with the other option)

Then:

If we have 7 pieces of duct connected we have 5 connections (the ones in the extremes are not connected between them)

So here we have 7 times 48 inches for the pieces, minus 5 times 1.72 inches for the connections, the length is:

L = 7*48in - 5*1.72in = 327.4 inches.

for the 12 pieces duct, we have 12 pieces and 10 connections, so the length is:

L = 12*48in - 10*1.72in = 558.8 in

Now, if we want to make only one duct with those two, then we must add their lengths, but if we connect them, we also need to subtract the 1.72in of the new connection:

L =  558.8 in +  327.4 in - 1.72in = 884.48 in

3 0
4 years ago
the speed of a stream is 4mph. If a boat travels 92 miles downstream in the same time that it takes to travel 46 miles upstream,
Elanso [62]

Answer:

12 miles per hour

Step-by-step explanation:

Let speed of boat in still water be "x"

and speed of current be "c"

So, downstream rate would be "x + c"

And, upstream rate would be "x - c"

Now, given c = 4

We can use the distance formula, D = RT, where

D is distance, R is rate, and T is time

to solve this.

Downstream:

D = RT

92 = (x+4)(t)

Upstream:

D = RT

46 = (x-4)(t)

Both the times are same, we can equate both the times. Lets simplify first:

t = 92/(x+4)

and

t = 46/(x-4)

Equate:

\frac{92}{x+4}=\frac{46}{x-4}

Now, cross multiply and solve for x to get our answer:

\frac{92}{x+4}=\frac{46}{x-4}\\92(x-4)=46(x+4)\\92x-368=46x+184\\46x=552\\x=12

Speed of Boat (in still water) = 12 mph

6 0
3 years ago
Will had 64 baseball cards in his collection. He then got 8 more cards. He keeps the cards in a binder. Each page in the binder
WITCHER [35]

Answer: 64+8=72...72/9=8

Step-by-step explanation:

6 0
3 years ago
45600 pounds = kg<br><br> *Round UP to the nearest 10th
aniked [119]

Answer:

45600 pounds = 20683.8 kg to the nearest 10th.

Step-by-step explanation:

Consider the provided measurement

1 kg = 2.20462 pounds

1 pound = 0.453592 kg

Multiply both the sides by 45600.

1×45600 pound = 0.453592×45600 kg

45600 pound = 20683.812 kg

Now convert it to the nearest tenths as shown.

45600 pound = 20683.8 kg

Hence, 45600 pounds = 20683.8 kg to the nearest 10th.

3 0
4 years ago
Find p (2) when p = 15 (prob &amp; stats)
irinina [24]

Answer:

find  p (2) when p = 15 (prob & stats)

the answer is  30

Step-by-step explanation:

since p is given to be 15 then p(2) will be expressed as p x 2

15 x 2

=30

6 0
3 years ago
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