標題:
Mahts!
發問:
The sum of three consecutive numbers is less than 25. Find the range of the values of the largest number. The length of a rectangle is twice its width and its perimeter is at most 48 cm. Find the greatest possible dimension od the rectangle.
最佳解答:
Let x-2, x-1 and x be the three consecutive numbers. (x-2)+(x-1)+x<25 3(x-1)<25 x<28/3 Since x is an integer, the range of values of the largest number is <9. (Not given that the numbers cannot be negative.) Let w cm be the width of the rectangle. 2(2w+w)≤48 w≤8 The greatest possible dimension is (8*16) (cm)^2.
其他解答:
Mahts!
發問:
The sum of three consecutive numbers is less than 25. Find the range of the values of the largest number. The length of a rectangle is twice its width and its perimeter is at most 48 cm. Find the greatest possible dimension od the rectangle.
最佳解答:
Let x-2, x-1 and x be the three consecutive numbers. (x-2)+(x-1)+x<25 3(x-1)<25 x<28/3 Since x is an integer, the range of values of the largest number is <9. (Not given that the numbers cannot be negative.) Let w cm be the width of the rectangle. 2(2w+w)≤48 w≤8 The greatest possible dimension is (8*16) (cm)^2.
其他解答:
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