The correct answer would be A
Take the left triangle, flip it and put it on the right side. This should resemble a rectangle. Then calculate
9cm + 7cm = 16cm
6cm x 16cm = 93cm squared
The correct answer is A, hoped this helped!
Heya friend,
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Let the digits at ones place be x. Then,
the digits at tens place = (8-x)
Original number = 10(8-x) + x
= 80 - 10x + x
= 80 - 9x
On interchanging the digits
new number obtained = 10x + 8-x
= 9x + 8
According to question,
New number - Original number = 18
9x + 8 - (80-9x) = 18
=> 9x + 8 - 80 + 9x = 18
=> 18x - 72 = 18
=> 18x = 18 + 72
=> 18x = 90
=> x = 90/18
=> x = 5
Hence, the digits at ones place is 5.
The digits at tens place = (8-5) = 3.
So, the original number is 35 and the new number is 53.
Thanks
Answer:
AC = 20
Step-by-step explanation:
Δ BDE and Δ BAC are similar, so the ratios of corresponding sides are equal, that is
= 
, substitute values
= 
( cross- multiply )
4AC = 80 ( divide both sides by 4 )
AC = 20
Hi Brainiac
2/5 + p = 4/5 + 3/5 p
Simplify
p + 2/5 = 3/5 p + 4/5
Subtract 3/5p from both sides
p + 2/5 -3/5p = 3/5p + 4/5 -3/5 p
2/5 p + 2/5 =4/5
Subtract 2/5 from both sides
2/5 p +2/5 -2/5 = 4/5 -2/5
2/5 p = 2/5
Divide both sides by 2/5
2/5 p / 2/5 = 2/5 /2/5
p = 1
I hope that's help:)
See attachment for math work and answer.
