makaylahunt
11.10.2019 •
Mathematics
The perimeter of a rectangle is 140 and the length is 10 more than four times the width. find the dimensions
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Ответ:
Width = 12
Length = 58
Step-by-step explanation:
Width = x
Length = 4x + 10
Perimeter = 140
2 * ( length + width ) = 140
2 * (4x +10 + x) = 140
5x + 10 = 140/2 = 70
5x = 70- 10
5x = 60
x = 60/5 = 12
Width = 12
Length = 4 * 12 + 10 = 48 +10 = 58
Ответ:
= -41/9
Step-by-step explanation:
Given that:
= -2 (1/3 * 2/3) + 5
By solving the bracket first we get:
= -2 (2/9) +5
= -4/9 +5
Taking LCM to make denominator same:
Multiply 5 by 9/9 we get:
= -4/9 + 5*9/9
= -4/9 + 45/9
=(-4+ 45)/9
= -41/9
I hope it will help you!