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Oliga [24]
3 years ago
15

25 POINTS!!!!! add. express your answer as a fraction. Do not include spaces in your answer 5 1/4+ 15.5

Mathematics
2 answers:
ICE Princess25 [194]3 years ago
8 0

Answer:

20\frac{3}{4}

Step-by-step explanation:

=> 5\frac{1}{4} + 15\frac{1}{2}

=> \frac{21}{4}+ \frac{31}{2}

=> \frac{21+62}{4}

=> \frac{83}{4}

=> 20\frac{3}{4}

ss7ja [257]3 years ago
5 0

Answer:

The answer is 83/4

Step-by-step explanation:

5 1/4+15.5

21/4+15.5

Taking LCM

21/4+15.5*4/1*4

21/4+62/4

83/4

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What is the present value of 6000 received 14 years from today when the interest rate is 10%
likoan [24]

Answer:

$14400

Step-by-step explanation:

Given data

Principal= 6000

Time= 14 years

Rate= 10%

Let us use the simple interest expression to find the final amount

A=P(1+rt)

substitute

A=6000(1+0.1*14)

A=6000(1+1.4)

A=6000*2.4

A=$14400

Hence based on a simple interest model the final amount is $14400

3 0
2 years ago
Which number produces a rational number when multiplied by 0.5​
Blababa [14]

There are many. For example, 32 x 0.5 is 16. You can multiply 4 x 4 to get 16, so it is rational.

5 0
3 years ago
(-2x)(x-3) <br> I need help with algebra!
VashaNatasha [74]

Answer:

The answer should be -2x^2+6x

8 0
3 years ago
Five times a number divided by four
cestrela7 [59]
5x/4  plug in any number by x
5 0
3 years ago
Read 2 more answers
The length of a rectangle is nine inches more than its width. Its area is 486 square inches. Find the width and length of the re
Elan Coil [88]

Answer:

  • width: 18 in
  • length: 27 in

Step-by-step explanation:

The relations between length (L) and width (W) are ...

  W +9 = L

  LW = 486

Substituting gives ...

  (W+9)W = 486

  W^2 +9W -486 = 0 . . . put in standard form

  (W +27)(W -18) = 0 . . . . factor

  W = 18 . . . .  the positive solution

The width of the rectangle is 18 inches; the length is 27 inches.

_____

<em>Comment on factoring</em>

There are a number of ways to solve quadratics. Apart from using a graphing calculator, one of the easiest is factoring. Here, we're looking for factors of -486 that have a sum of 9.

486 = 2 × 3^5, so we might guess that the factors of interest are -2·3² = -18 and 3·3² = 27. These turn out to be correct: -18 +27 = 9; (-18)(27) = -486.

3 0
3 years ago
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