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In-s [12.5K]
3 years ago
15

Mr Martin has 36 calculators in a box. The ratio of ordinary calculators to scientific is 5:1. How many of each calculator does

he have?
Mathematics
1 answer:
viva [34]3 years ago
5 0
30 ordinary and 6 scientific
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3 years ago
The length of a rectangle is twice its width. if the area of the rectangle is 128 ft2 , find its perimeter.
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Length(l)= 2w
Width(w)= w
Area(A) = l*w

A= 128 ft²
128= l*w
128= (2w)w
2w²= 128
w²= 64
w=√64= 8 ft
w= 8 ft

length(l)= 2w
l=2(8)
l=16 ft

P= 2l+2w
P=2(16)+2(8)= 32+16= 48ft
P= 48ft

Answer:
The Perimeter of this rectangle is 48 feet.


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