Answer:
The discount rate is %35! :)
Step-by-step explanation:
The angle opposite of the 27° one would also be 27° because vertically opposite angles are congruent
The other two angles would be 180°-27° which =153°
This is because co-interior angles (allied angles) are supplementary.
Supplementary means that they add up to 180°.
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Lets name the number of guppies in the tank as x
number of goldfish in the tank is 6 times the amount of guppies.
since the amount of guppies is x, then number of goldfish is 6 * x = 6x
therefore total amount of guppies and goldfish is x + 6x
there are total of 21 fish
therefore x + 6x = 21
7x = 21
x = 21/7
x = 3
therefore number of guppies = 3
number of goldfish -6x and x = 3 therefore 3 x 6 = 18 goldfish
we are asked to find how many more goldfish than guppies
we have to find the difference
18 - 3 = 15
there are 15 more goldfish than guppies