2 years ago

14

Mathematics

1 answer:

Marta_Voda [28]2 years ago

8 0

Answer:

4 and a half nights

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Does anyone know how to do this

Julli [10]

Maria = x
Tom = y

Use substitution
x+y=30
2y=x

2y+y=30
3y=30
y=10
Tom is 10 years old.

x+y=30

x+10=30
x=20
Maria is 20 years old.

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2 years ago

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What is the slope intercept of the line y=2x+4

astraxan [27]

Answer:

Slope = 2

Y intercept = 4

Step-by-step explanation:

This is of the form y = mx + k

where m is the slope

K = y intercept

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2 years ago

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Find the perimeter of this triangle.<br>HELP ASAP!!!!

irga5000 [103]

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2 years ago

Hello someone do this for me

Wittaler [7]

Answer: 53

Step-by-step explanation: To get the answer we have to use the pythagorean theorem.

a² + b² = c²

28² + 45² = c²

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$\sqrt{2809}$

c = 53

I hope this helps!

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2 years ago