Answer: The class set up 495 chairs.
Step-by-step explanation:
Hi, to answer this question, first we have to multiply the number of rows (20) by the number of chairs in each row (25).
Mathematically speaking:
20x25= 500
Since they were 5 chairs short, we have to subtract 5 to the previous result.
500-5 = 495
The class set up 495 chairs.
Feel free to ask for more if needed or if you did not understand something.
Answer:
The students set up 495 chairs
Step-by-step explanation:
if there are 20 rows and 25 chairs in each row, then you multiply 20 by 25, giving you 500. They had 5 chairs too little, therefore they set up 495 chairs.
Hope this helps!
Answer:
x and x+4
Step-by-step explanation:
since area is product of length and breadth for a rectangle . if we factorise the area given , take x as common the other expression comes out to be x+4 . hence dimensions are x and x+4
The length of the shortest side of the triangle is 10cm.
It is given that congruent sides of an isosceles triangle are each 1 unit longer than the length of the shortest side, the perimeter of the triangle is the same as the perimeter of a square whose side length is 2 units shorter than the length of the shortest side of the triangle.
All three corresponding sides are equal and all the three corresponding angles are equal in measure.
Let's have the variable x be the length of the shortest side.
To equate to demonstrate this problem:
Longer sides of the triangle is (1+x)
Perimeter = (x-2)*4
Therefore, the equation is 4(x-2)=(1+x)+(1+x)+x
Simplify:
4x-8=2+3x
4x=10+3x
x=10
So, the length of the shortest side of the triangle is 10cm.
Learn more about congruent triangle here:
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Answer:
The Great Barrier Reef is located in Australia.
Answer:
Northern Australia
Step-by-step explanation:
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