+0  
 
+2
58
7
avatar+118 

1) At the Gooddog Obedience School, dogs can learn to do three tricks: sit, stay, and roll over. Of the dogs at the school:

 

50 dogs can sit & 17 dogs can sit and stay |

29 dogs can stay & 12 dogs can stay and roll over |

34 dogs can roll over & 18 dogs can sit and roll over |

9 dogs can do all three & 9 dogs can do none.

 

How many dogs are in the school?

__________________________________________________________________________________________________________________

2) Solve for z in the following equation: 2-iz = -1 + 3iz.

 Oct 2, 2020
edited by DragonXlayer  Oct 2, 2020
edited by DragonXlayer  Oct 2, 2020
edited by DragonXlayer  Oct 2, 2020
 #1
avatar
0

1) There are 72 dogs in the school.

 Oct 2, 2020
 #2
avatar+118 
0

Sorry that is wrong, anyone else?

 Oct 2, 2020
 #3
avatar
0

1)75

2)3/{4i}

 Oct 2, 2020
 #4
avatar+27695 
0

Draw a V enn diagaram and complete it to find 81 dogs in the school

 Oct 2, 2020
 #6
avatar+240 
+1

1) At the Good dog Obedience School, dogs can learn to do three tricks: sit, stay, and roll over. Of the dogs at the school:

50 dogs can sit & 17 dogs can sit and stay |

29 dogs can stay & 12 dogs can stay and roll over |

34 dogs can roll over & 18 dogs can sit and roll over |

9 dogs can do all three & 9 dogs can do none.

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

If I'm not mistaken (again :)) there are 84 dogs.

 

 Oct 2, 2020
edited by jugoslav  Oct 2, 2020
 #7
avatar+240 
+2

You just need to add up all the numbers on the diagram, and you'll get the answer.smiley

 

Sit-circle the total is 50

Stay-circle the total is 29

Roll-circle the total is 34

jugoslav  Oct 2, 2020
edited by jugoslav  Oct 2, 2020

40 Online Users

avatar
avatar
avatar