Answer:
perimeter of a triangles are 12cm and 29cm respectively.
Step-by-step explanation:
finding the perimeter of a triangle simply means that you are finding the distance around. The simplest way to find the perimeter of a triangle is to sum up all its sides.
mathematically,
perimeter of a triangle = side A + side B + side C
perimeter of a triangle = 3cm + 4cm + 5cm
perimeter of a triangle = 12cm
for the second triangle according to the question
it says the triangle has sides, 7cm, 10cm, 12cm
perimeter of a triangle = 7cm + 10cm+ 12cm
perimeter of a triangle = 29cm
Answer:
58 seconds
Step-by-step explanation:
Very very easy, no formulas or +,- required here.
You can see that the swim times go till 44 on the line, that is the lowest, that means the FASTEST swim time. But we need the slowest swim time. That we can find by finding where does the line end in the right side. We can see it ends between 56 and 60, and if we calculate, then we can find out that the bar in the middle represents 58, so hence, her slowest timing for her swim time is 58 seconds.
So hence, your answer is 58 seconds!
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Answer:
Step-by-step explanation:
<h3>Hope it is helpful....</h3>
Answer:
/ Solve equation [2] for the variable y
[2] 7y = 12x + 17
[2] y = 12x/7 + 17/7
// Plug this in for variable y in equation [1]
[1] 9x - 2•(12x/7+17/7) = -3
[1] 39x/7 = 13/7
[1] 39x = 13
// Solve equation [1] for the variable x
[1] 39x = 13
[1] x = 1/3
// By now we know this much :
x = 1/3
y = 12x/7+17/7
// Use the x value to solve for y
y = (12/7)(1/3)+17/7 = 3
Solution :
{x,y} = {1/3,3}
Step-by-step explanation: