The equation r=u/st is equivalent to u = rst. True False
2 answers:
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Answer:
Length = 45.37 in
Width = 30.56 in
Step-by-step explanation:
Let the width of the picture be 'w' inches.
Given:
Perimeter of the picture is,
Length is 15.75 inches shorter than twice the width. So, length is:
Now, we know that the perimeter of a rectangular shape is given as the sum of all of its side. So, the picture is also of rectangular shape and hence the perimeter is given as:
Plug in the values of 'l' and 'P' and solve for 'w'. This gives,
Therefore, the width of the rectangular picture is 30.56 inches.
Length of the picture is,
So, length of the picture is 45.37 inches and width is 30.56 inches.
Answer:
140%
Step-by-step explanation:
So a fraction can be expressed as: and if a number decreases by x%, the new number is (100-x)% the original value. So since the numerator decreases by 30%, it's not 70% the original value, and it's very similar with the denominator, with it only retaining 50% of it's original value. This gives you the formula:
. You can rewrite the fraction as:
in doing so it's easy to see that you can cancel out the 0.5 and get:
. This means the value is increasing by 1.4 or 140%