(a^-7 x b^-2)^-9 =? Select the equivalent expression.
1 answer:
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Answer:
10%
Step-by-step explanation:
Given: CP of lemon is $600.
3/4 of lemon sold at 20% loss
Remaining lemon at 20% gain.
Considering the quantity of lemon remain constant.
Cost price of 3/4 of lemon=
As given, 3/4 of lemon sold at 20% loss.
∴ Selling price of
Selling price=
Hence, selling price of 3/4 lemon is $360.
Now, the cost price of remaining lemon
∴ The cost price of
As given, remaining
∴ Selling price of
Selling price of
Hence, selling price of 1/4 lemon is $180
Loss\profit percent=
∴ Loss\profit percent=
Hence, the loss percentage is 10%
answer:
52
step-by-step explanation:
- we can use the 45-45-90 triangle theorem for this: x, x, x
this is because this is a square
- squares have two sides of the same length, and the diagonal is different
- the x's stand for the sides, whereas the x
stands for the diagonal
x = 26
x = 13
- now multiply this by 4 because this is the length of one of the sides of the square. in order to find the perimeter we have to either add this four times or multiply by 4
13 X 4 = 52