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zysi [14]
3 years ago
6

Add 15 3/5 and 21 4/5 as a mixed number please help

Mathematics
1 answer:
Reptile [31]3 years ago
7 0

Answer:

15(5)+3=78

21(5)+4=109

78+109=187

Step-by-step explanation:

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Find the sum of difference
murzikaleks [220]
Evaluate question answers
1. 6x7 -3
V
42 - 3
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39
Answer
39

2. 2x6+3x7 - (-3)
V
12 + 21 - (-3)
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12 + 21 + 3
V
36
Answer
36

3. 5 x (-3) +7 - 6
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-5 x3+7 - 6
V
-15 + 7- 6
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-14

Find the sum or difference answers

1. Simplify or expand
(16m 4 - 8m + 3) + (-7m4 - m2 - 8)

16m4 - 8m + 3 - 7m4 - m2 - 8
V
9m4 - 8m - 5 - m2
V
9m 4 - m2 - 8m - 5
Answer
9m 4 - m2 - 8m - 5

2. Simplify or expand
(3x2 - 5x + 9) + (2x2 + 9x -4)+ (7x- 11)
v
3x2 - 5x + 9+ 2x2+9x - 4+7x-11
V
5x2 + 11x - 6
Answer
5x2 + 11x - 6

3. Simplify or expand
(3y2 - y - 6) - (42 + 5y+ 3)
V
3y2 - y - 6 - 4y2 - 5y - 3
V
-y2 - 6y - 9
Answer
-y2 - 6y - 9

4. -7 -2+2x2+ 9x
2 Simplify or expand
-7 - 2+2x2+9x
V
-9 + 2x2 + 9x
V
2x2 + 9x - 9
Answer
2x2 + 9x - 9
8 0
3 years ago
You pay $10 to play the following game of chance. there is a bag containing 12 balls: three are red, five are green, and the res
Bogdan [553]

Answer:

$ -2.08  expected to lose  

Step-by-step explanation:

3 25.0%  $15.00   $5.00   $1.25  

5 41.7%  $10.00   $-     $-    

4 33.3%  $-     $(10.00)  $(3.33)  

     

    $(2.08)  expected to lose  

7 0
3 years ago
All of the following are equivalent except 7x2, 4x+3x, (4+3)x, 7x
Virty [35]

Answer:

7x^2 (the first choice)

Step-by-step explanation:

7x^2

4x+3x = 7x

(4+3)x = 7x

7x

All are 7x except for the first one which is 7x^2

5 0
3 years ago
Read 2 more answers
When writing a summary for a text or even after watching a movie, the summary will: Question 2 options: A.) Be shorter than the
Sav [38]

Answer:

D.) All the above answer choices are good characteristics of a summary.

Step-by-step explanation:

A summary is one-third of the original context. It gives the main idea of the writing. It includes all the most important and relevant supporting details. One can understand the whole story or text by reading the summary.

5 0
3 years ago
Simplify 3x³(x+2)+2x(x²+3x)​
max2010maxim [7]

Answer:

{3x}^{4} +  {8x}^{3}   +  {6x}^{2}

Step-by-step explanation:

{3x}^{3} (x + 2) + 2x( {x}^{2}  + 3x)

{3x}^{4}  +  {6x}^{3}  +  {2x}^{3}  +  {6x}^{2}

{3x}^{4} +  {8x}^{3}   +  {6x}^{2}

<h3>Hope it is helpful...</h3>
8 0
3 years ago
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