The answer is 81.
Hope this helps.
To answer this question, you need to know that a quarter is worth $0.25 and dimes worth $0.10. In this case, the total number of money that made from quarters and dimes is $2.80
With Q=quarter and D=dime, then the equation should be:
2.80= 0.25 Q + 0.10 D
The condition that needs to be fulfilled in this case is that the quarter should be 8 more than dimes. Then you need to find out the highest possible number of the quarter and lowest possible number of the dimes.
If you divide 2.8 with 0.25 you will found it will be 11.2 but 11 quarter will result with 0.05 value which you cannot remove, so the highest possible of the quarter should be 10.
If the highest possible of the quarter is 10, then the lowest possible of dimes should be:
2.8= 0.25(10) + 0.10D
0.10D= 0.3
D=3
Since 10-3 is 7, then it is not possible for the quarter to be 8 more than the dimes.
Answer:
The answer is 5 years
Step-by-step explanation:
You must do 85 cm ÷ 17 cm to find how many years in which the cliff will erode 85 centimeters and the answer is 5.
Answer:
Step-by-step explanation:
Use the exterior angle theorem of a triangle.
According to this theorem; an exterior angle 
is equal to the sum of the two opposite interior angles (35+58).
Simplify;
