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CaHeK987 [17]
3 years ago
14

Find the area and perimeter of triangle ABF with F(-3,0), A(1,3), and B(7,-5)

Mathematics
1 answer:
lions [1.4K]3 years ago
8 0

Answer:

Step-by-step explanation:

The area would be 25 square centimeter

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Can someone please help??
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Answer:

let the number of cows = x

let the number of chickens = y

since there are 42 heads:

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and since a cow has 4 legs, and a chicken has 2

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from first equation:

x + y  = 42

x = 42 - y (now, we will substitute this in the second equation)

4(42 - y) + 2y = 144

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2y = 168 - 144

2y = 24

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now, we know the number of chickens. we will replace y with 12 in the first equation since it is more simpler

x + 12 = 42

x = 30

So, there are 30 cows and 12 chickens

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Answer:

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Hi there,

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Hope this helps :)
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The original sales price of a jacket to the original price is 3:4. The original price is $64 what is the sales price
natka813 [3]
So we need to find a number that has the same ratio to 64 as 3 has to four. We do this by diving 64 into 4:(this is 16): so the two ratios are different by 16. To find the remaining number we multiply  3 by 16: this is 48. So 48 has the same ratio to 64 as 3 has to 4.

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