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elixir [45]
3 years ago
8

What two numbers have a sum of 215 and a difference of 137

Mathematics
1 answer:
BabaBlast [244]3 years ago
3 0

Answer:

see below

Step-by-step explanation:

let x = big number

let you = small number

x + y = 215-------> (1)

x - y = 137 ------>(2)

(1)

x = 215 - y ----->(1)

substitute 1 into 2

215 - y -y = 137

-2 y = 78

y = 39

substitute y = 39 into (1)

x = 215 - (39)

x = 176

thus the numbers are 176 & 39

hope this helps

please mark it brainliest

it took me quite long to do this

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Answer:

B. 21.2

Step-by-step explanation:

Perimeter of ∆ABC = AB + BC + AC

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AB = \sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2}

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AB = \sqrt{4 + 4}

AB = \sqrt{16}

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✔️Distance between B(-2, 3) and C(3, -4):

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