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Mkey [24]
3 years ago
6

The sum of three numbers is 12. The first number is the difference of the other two numbers. When you add the other two numbers

and subtract 8, the result will be the first number. Find the numbers.
2, 4, 6

2, 5, 5

3, 7, 2

5, 10, -3
Mathematics
1 answer:
Eddi Din [679]3 years ago
3 0
The first group of numbers: 2, 4, 6
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. Express 3/7 as a rational number with denominator 91.<br>(1 Point)<br>​
grin007 [14]

Answer:

\frac{39}{91}

Step-by-step explanation:

Given

\frac{3}{7}

To express as a rational number with 91 on the denominator.

91 ÷ 7 = 13

Thus multiply the numerator and denominator by 13, that is

\frac{3(13)}{7(13)} = \frac{39}{91}

7 0
3 years ago
Simplify the expression 4 to the 3 power and 4 to the negative 6 power fractions
Vesnalui [34]

Answer:

Step-by-step explanation:

4³/4⁻⁶ = 4³⋅4⁶ = 4³⁺⁶ = 4⁹

7 0
3 years ago
Tickets to a football final are selling well. On Thursday, 47 of the tickets are sold. On Friday, 14 of the tickets are sold. Wh
lbvjy [14]

The question seems incomplete ; as the total number of tickets to be sold isn't given.

Answer:

61 / X

Step-by-step explanation:

Let's take the total Number of tickets to be sold as : X

Number of tickets sold on Thursday = 47

Number sold on Friday = 14

Fraction of tickets available for sale on Saturday :

(Total number of tickets already sold) / Total number of tickets to be sold

(Thursday + Friday sales) / total number of tickets to be sold

Fraction available for sale on Saturday = (47+14) / X

Fraction available for sale on Saturday = 61 / X

Kindly put value of x = total number of tickets available for sale to get the exact fraction.

6 0
3 years ago
To track the fish population in a certain area a sample of 35 fish were tagged and released.Later another sample was caught and
olga nikolaevna [1]

Answer:

Step-by-step explanation:

The question says that the fish population of an area is being tracked and a certain of 35 were collected,tagged and released.

Later another sample was collected and it revealed that 13% of those fishes caught were the ones tagged previously.

The estimated number of fishes in that area will be:

Let X= number of fishes available in that area

13 percent of fishes caught at the second sample collection were tagged

Number of fishes collected are 35

13/100×X= 35

X= 3500/13

X= 269

The number of fishes in the pond is around 269

7 0
3 years ago
A hollow metallic cylinder is made from a metallic sheet of 2.4 cm thickness. The inner
butalik [34]

Answer:

The volume of the metal used is 5277.9 cm³.

Step-by-step explanation:

The volume of a cylinder is given by:

V = \pi r^{2} h

Where:

r: is the radius

h: is the height = 50 cm

The volume of metal (V_{m}) can be found by subtracting the internal volume (V_{i}) from the external volume (V_{e}):

V_{m} = V_{e} - V_{i}

V_{m} = \pi r_{e}^{2} h - \pi r_{i}^{2} h    

The external radius is given by the sum of the internal radius with the tickness:

r_{e} = t + r_{i}

Hence, the volume is:

V_{m} = \pi*50 cm((2.4 cm + 5.8 cm)^{2} - (5.8 cm)^{2}) = 5277.9 cm^{3}

           

Therefore, the volume of the metal used is 5277.9 cm³.

I hope it helps you!                                                      

4 0
3 years ago
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