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2 years ago

The perimeter of the triangle is 202cm. Using that find the value of x

Mathematics

2 answers:

IgorLugansk [536]2 years ago

8 0

Answer:

x = 13

Step-by-step explanation:

3x + 12 + 5x + 16 + 4x + 18 = 202

combine like terms

12x + 12 + 16 + 18 = 202

12x + 46 = 202

-46 -46

12x = 156

divide by 12

x = 13

Hope this helped! Have a nice rest of ur day! Plz mark as brainliest!!!

-Lil G

laila [671]2 years ago

3 0

Add all the sides together (don´t forget parenthesis) Put the x´s with the x´s and the same with the other numbers. The subtract additional numbers from the total. The divide what left from the number in front of the x.

(3x + 12) + (5x + 16) + (4x + 18) = 202

8x + 28 + (4x + 18) = 202

12x + 46 = 202

- 46 -46

12x = 156

/12 /12

x = 13

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3 years ago

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3 years ago

73km 47hm 2dam - 11km 55hm

zvonat [6]

Answer

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Explanation

You can carry out operations on the like terms only. So convert all units to one unit.

I will convert them to dam

1 km =100 dam

73 km = 73 × 100

=7,300 dam

11 km = 11× 100

1100 dam

1 hm = 10 dam

47 hm = 47 × 10

= 470 dam

55 hm = 55× 10

= 550 dam

73km 47hm 2dam - 11km 55hm = (7300+ 470+2) - (1100+550)

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3 years ago