Answer:
Just see how are they alike and differents
Step-by-step explanation:
Answer:
1/(-3y^3/x)^4
= 1/(-3)^4*(y^3)^4/x^4
= 1/81y^12/x^4
=x^4/81y^12
A
Step-by-step explanation:
Answer:
there are 9 quarters and 19 dimes
Step-by-step explanation:
Let x be the number of dimes and y the number of quarters
-dimes: 0.1x
-quarters: 0.25y
-the total amount of coins : x + y = 28
=> x = 28 - y
We have the equation:
0.25y + 0.1x = 4.15
0.25y + 0.1(28 - y) = 4.15
0.25y + 2.8 - 0.1y = 4.15
0.15y = 1.35
y = 9
x = 28 - y
= 28 - 9
= 19
81.42
= 81+ 0.42
= 81+ 42/100
= 81+ (42/2) / (100/2)
= 81+ 21/50
= 81 21/50
The final answer is 81 21/50~
Multiply total students by the percentage:
600 x 80% = 600 x 0.80 = 480
480 students want more field trips.
