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1 answer:
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Answer:
The area of rectangle is 12cm² and the perimeter is 14cm.
Step-by-step explanation:
First, you have to find the length of the rectangle using Pythagoras Theorem :
a² + b² = c²
a² + 3² = 5²
a² = 5² - 3²
a² = 16
a = √16
a = 4 cm
Next, you have to find the perimeter and area of rectangle :
Perimeter = 2(length + breadth)
P = 2(4 + 3)
P = 2(7)
P = 14 cm
Area = length×breadth
A = 4×3
A = 12 cm²
15)
m = Miguel Indurian titles amount l = Lance Armstrong titles amount
they both won titles to the tour de france, if we add all together, they sum up to 12 for both of them
so.. whatever "m" and "l" are, we could say that m + l = 12
now... Miguel won 2 fewer than Lance, so, whatever "l" is, m = l - 2
thus
solve for "l", to see how many Lance won
how many did Miguel win? well, m = l - 2
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17)
c = mgs amount in 12oz cup of regular coffee at starbucks
d = mgs amount in 12oz cup of regular decaffeinated coffee at starbucks
we know the regular coffee cup, has 13 times more than the decaf, same 12ouncer
thus whatever "c" and "d" are, we know that c = 13d
both 12ouncers put together, yield 280mgs of caffeine
so, one could say that whatever "c" and "d" are, c + d = 280
thus
solve for "d" to see how much is in the decaffed cup
the regular coffee cup? well c = 13d
m = Miguel Indurian titles amount l = Lance Armstrong titles amount
they both won titles to the tour de france, if we add all together, they sum up to 12 for both of them
so.. whatever "m" and "l" are, we could say that m + l = 12
now... Miguel won 2 fewer than Lance, so, whatever "l" is, m = l - 2
thus
solve for "l", to see how many Lance won
how many did Miguel win? well, m = l - 2
---------------------------------------------------------------------------------
17)
c = mgs amount in 12oz cup of regular coffee at starbucks
d = mgs amount in 12oz cup of regular decaffeinated coffee at starbucks
we know the regular coffee cup, has 13 times more than the decaf, same 12ouncer
thus whatever "c" and "d" are, we know that c = 13d
both 12ouncers put together, yield 280mgs of caffeine
so, one could say that whatever "c" and "d" are, c + d = 280
thus
solve for "d" to see how much is in the decaffed cup
the regular coffee cup? well c = 13d