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2 years ago

ABC is the middle line of MN in an equilateral triangle. If AB = 8 cm, then find the perimeter MBN.

Mathematics

1 answer:

qaws [65]2 years ago

4 0

Answer:

the answer is 12

Step-by-step explanation:

since the triangle is equilateral meaning all side of ABC is equal to each other AB= BC = AC= 8cm and MN is the middle line that divides AB and BC by two

thus, MB =BN= 4 cm. MN is the middle line thus will also be equal to the half of AC meaning MN=AC/2= 4cm. and perimeter is MBN = MN+MB+BN= 4cm+4cm+4cm =12cm

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Which system of equation should you use to solve this problem

Alex17521 [72]

Last option is the correct answer.

Step-by-step explanation:

Given that

Let x stand for the solution a and y stand for the solution B

So,

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And the mixture of 30 gallons contains 45% bromine

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2 years ago

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tiny-mole [99]

Answer:

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Step-by-step explanation:

In probability, "AND" means "multiplication" and

"OR" means "addition".

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3 years ago

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anygoal [31]

Answer:

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3 years ago

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In-s [12.5K]

Answer: the old price for 1 liter is $0.3

Step-by-step explanation:

Let x represent the old price for 1 liter of petrol.

Last week a man bought 20 liters at the old price. This means that the total amount that the man paid for 20 liters is 20x.

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This week he bought 10 liters at the new price. This means that the total amount that the man paid for 10 liters is

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20x + 10x + 0.2 = 9.2

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3 0

3 years ago