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marusya05 [52]
3 years ago
13

Help with number 7!! You don’t have to do it but how do you do the problem??

Mathematics
2 answers:
musickatia [10]3 years ago
6 0
80 * 5/8 will give you how many are thoroughbreds. 

80 * 5/8 = 50

Now subtract this from all of the horses. 

80 - 50 = 30. 

There are 30 quarter horses. 

OR If 5/8 of the horses are thoroughbreds, then 3/8 are quarter horses.

80 * 3/8 = 30. 
otez555 [7]3 years ago
4 0
I believe the answer is 30
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What number is 80% of 390?
sukhopar [10]

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3 years ago
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IrinaK [193]

Answer:

35 cm

Step-by-step explanation:

You can use the Cosine Rule to find the length of a side when two sides and the included angle are given.

a² = b² + c² - 2bc cos A

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