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kow [346]
3 years ago
6

Sam is five years old his older brother tom is three times as old is sam when salmon is 20 how old will tom be

Mathematics
1 answer:
kramer3 years ago
3 0
Sam's bother is 23 years old
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Rewrite 19/5 as a mixed number.<br> 1. 4^2/5<br> 2. 3^4/5<br> 3. 5^3/4<br> 4. 4^1/5
Nadusha1986 [10]

Answer:

  • 3 4/5
  1. 3 1/5
  2. 16 1/5
  3. 31 1/4
  4. 4/5

Step-by-step explanation:

An improper fraction is converted to a mixed number by doing integer division and expressing the remainder as a fraction with the divisor as the denominator.

... 19/5 = (3·5 +4)/5 = 3 4/5

The expressions involving exponents are evaluated to mixed numbers according to the Order of Operations. The exponent is evaluated before division, so ...

1. 4^2/5 = (4^2)/5 = 16/5 = 3 1/5

2. 3^4/5 = (3^4)/5 = 81/5 = 16 1/5

3. 5^3/4 = (5^3)/4 = 125/4 = 31 1/4

4. 4^1/5 = (4^1)/5 = 4/5

_____

If you intended fractional exponents, according to the Order of Operations, you need to put that fraction in parentheses. The denominator of the fraction is the root of the base number to the numerator power.

... 4^(2/5) = (4^2)^(1/5) = 16^(1/5) = \sqrt[5]{16}

5 0
3 years ago
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Please read the attachment below, I need help on this one
Citrus2011 [14]

Answer:

A) 60%  B)65%

Step-by-step explanation:


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3 years ago
A stereo system is being installed in a room with a rectangular floor measuring 15 feet by 11 feet and a 10​-foot ceiling. The s
Likurg_2 [28]

Answer:

Shortest length of wire = 28.60 feet

Step-by-step explanation:

<u>Distances In Rectangular Objects </u>

If we want to go from one point in space to another one, the shortest possible distance is through a line. But if we are not allowed to, we must try to use as many direct paths as possible to minimize the distance.

In our case, the minimum distance will be going right from one corner to the other through the air, but we must use walls and floor. So our choices are limited to shorten the distance as much as possible by taking paths from corners whenever it's possible.

Starting from the corner where the stereo system is located, we must try to reach the other corner by using one of these options

  • Cross the floor by its diagonal and then go right to the other corner in the ceiling
  • Cross one wall by its diagonal and then go to the other corner. It can be done for each adjacent wall to the stereo system.

If we try the first option first, the diagonal of the floor measures

\displaystyle \sqrt{15^2+11^2}

And now we reach the other corner, traveling a total distance of

\displaystyle L_1\sqrt{15^2+11^2}+10

\displaystyle L_1=28.60\ {ft}

Trying one of the adjacent walls

\displaystyle L_2=\sqrt{15^2+10^2}+11

\displaystyle L_2=29.028\ feet

And the final option is

\displaystyle L_3=\sqrt{10^2+11^2}+15\ feet

\displaystyle L_3=29,87\ feet

We can see the first is the shortest distance, so to reach the speaker we must cross the floor by its diagonal and the go up to the speaker

Note: Each of the options analyzed have a identical counterpart by taking the opposite side first. For example, the path floor-wall could have been done as wall-ceiling, with identical results

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3 years ago
1. What is the approximate world population? There are 7.674 billion people on earth.
almond37 [142]

Answer:

?????///?//??////?????

Step-by-step explanation:

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3 years ago
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What is the smallest number that i can add to 4310 to make it exactly divisble by 25
valkas [14]
The smallest number you can add to make it divisible by 25 is 15
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