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andrew11 [14]
2 years ago
6

Your uncle has 36 coins in nickels and quarters. The value of his nickels is 1/15 of the value of his quarters. Find the number

of nickels. Please show progress in answer.
Mathematics
1 answer:
Ostrovityanka [42]2 years ago
3 0

Answer:i

Step-by-step explanation:

Total coin = 36

Let the no. Of quarter = x

No. Of nickel = 1/15 × x = x/15

So, x + x/15 = 36

Multiply each terms by 15

15x + x = 540

16x = 540

x = 540/16

x = 33.75

Nickel is x/15 = 33.75/15 = 2.25

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Your friend enters a contest to see how many seconds they can stay standing on on a beam without falling off. The first day they
Rom4ik [11]

Answer:

Step-by-step explanation:

So this is an exponential equation because it is doubling each day.

So you will first determine the equation f (x)

6 0
2 years ago
A right rectangular prism has edges of 2 1/4 in, 1 1/2 in and 1 1/2 in. How many cubes with lengths of 1/4 in would be needed to
Zielflug [23.3K]

The volume of a rectangular prism is (length) x (width) x (height).

The volume of the big one is  (2.25) x (1.5) x (1.5) = <em>5.0625 cubic inches</em>.

The volume of the little one is  (0.25)x(0.25)x(0.25)= 0.015625 cubic inch

The number of little ones needed to fill the big one is

             (Volume of the big one)  divided by (volume of the little one) .

       5.0625 / 0.015625  =  <em>324 tiny cubies</em>

=================================================

Doing it with fractions instead of decimals:

The volume of a rectangular prism is (length) x (width) x (height).
Dimensions of the big one are:

   2-1/4  =  9/4
   1-1/2  =  3/2
   1-1/2  =  3/2

   Volume = (9/4) x (3/2) x (3/2) =
 
                 (9 x 3 x 3) / (4 x 2 x 2)  =

                           81 / 16  cubic inches.

          As a mixed number:    81/16  =  <em>5-1/16 cubic inches</em>

Volume of the tiny cubie = (1/4) x (1/4) x (1/4) =  1/64 cubic inch.   

The number of little ones needed to fill the big one is

             (Volume of the big one)  divided by (volume of the little one) .

                 (81/16) divided by (1/64)  = 

                     (81/16) times (64/1)  = 

                             5,184/16  =  <em>324 tiny cubies</em>.


5 0
3 years ago
What is -a^-2 of a =-5. A.-25. B.25. C.-1/25. D.1/25
nevsk [136]
I think the answer would be C but I am not certain.
3 0
3 years ago
Aubrey and Charlie are driving to a city that is 120 mi from their house. They have already traveled 20 mi, and they are driving
Zarrin [17]

Answer:  The function that models the distance they drive is

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reasonable domain:  0 ≤ x ≤ 3

Step-by-step explanation:

examples:

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120 = 50(2) + 20  This means that after 2 more hours they will reach their destination.

There is a little ambiguity in the question. The function could be written as if they are starting out.  f(x) = 50t  

20 = 50(.4)  At 50 mph it took .4 hours to go 20 miles.

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7 0
2 years ago
What’s the correct answer for this question?
agasfer [191]

Answer:

the radius

Step-by-step explanation:

the correct answer is the radius

4 0
3 years ago
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