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jenyasd209 [6]
3 years ago
11

Simply combining like terms:21b-32+7b-20b​

Mathematics
1 answer:
Alexxandr [17]3 years ago
5 0

Answer:

21b-32+7b-20b​

7b-32

Step-by-step explanation:

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I giveeee brainlilster
elena55 [62]

Answer:

84

Step-by-step explanation:

Set up a proportion. The ratio number of gray mice corresponds (is across from) the total number of gray mice (24)

5/2 = x/24                            Cross multliply

2*x = 5*24                            Multiply 5 by 24

2x = 120                               Divide by 2

x = 120/2

x = 60 Which represents the number of white mice.

So the white mice + gray mice = 60 + 24 = 84

7 0
3 years ago
Let S be the set of outcomes when two distinguishable dice are rolled, let E be the subset of outcomes in which at least one die
ExtremeBDS [4]

Answer:

Step-by-step explanation:

given that S be the set of outcomes when two distinguishable dice are rolled, let E be the subset of outcomes in which at least one die shows an even number, and let F be the subset of outcomes in which at least one die shows an odd number

E = atleast one shows even number

i.e. both cannot show odd number

So elements of E are

E ={(1,2) (1,4) (1,6) (2,1) (2,2) (2,3) (2,4)( 2,5) (2,6) (3,2) (3,4) (3,6) (4,1) (4,2) (4,3) (4,4( 4,5) (4,6) ,5,2) (5,4) (5,6) (6,1) (6,2) (6,3) (6,4( 6,5) (6,6) }

F = atleast one die shows odd

F={(1,1) (1,2) (1,3), (1,4)(1,5) (1,6) (2,1)  (2,3) ( 2,5) (3,1) (3,2) (3,3) (3,4)( 3,5) (3,6) (4,1) (4,3) (4,5) (5,1)  (5,2) (5,3)(5,4) (5,5) (5,6) (6,1)  (6,3)( (6,5) }

3 0
3 years ago
Howard is saving to buy a mountain bike that costs $245, excluding tax. he has already saved $28. what is the least amount of mo
LekaFEV [45]

Answer: 24

Step-by-step explanation:

245-28= 217

217÷9= 24.1

4 0
3 years ago
Read 2 more answers
What is the answer to this?
Dennis_Churaev [7]

Answer:

<h2>x = 14, z = 65</h2>

Step-by-step explanation:

The angles (5x - 5)° and (6x + 31)° are supplementary angles.

Supplementary Angles add up to 180°.

Therefore we have the equation:

5x - 5 + 6x + 31 = 180             <em>combine like terms</em>

(5x + 6x) + (-5 + 31) = 180

11x + 26 = 180               <em>subtract 26 from both sides</em>

11x = 154             <em>divide both sides by 11</em>

x = 14

The angles (5x - 5)° and z° are vertical angles.

Vertical angles are congruent.

Therefore we have the equation:

z = 5x - 5               <em>put x = 14 to the equation</em>

z = 5(14) - 5

z = 70 - 5

z = 65

4 0
2 years ago
Which is a factor of 21 <br> a6 <br> b5 <br> c4 <br> d3
aev [14]
3 because 7*3=21,...........
6 0
3 years ago
Read 2 more answers
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