Let the price of the goldfish be x Let the price of the rainbow fish be y
Anna bought 8 fish, therefore, Anna paid 8x for the gold fish Anna bought 2 rainbow fish, therefore, Anna paid 2y for the rainbow fish
We know that the total amount that Anna paid is 37$. Therefore: 8x + 2y = 37 ..................> equation I
Now, we know that the rainbow fish cost 6$ more than the goldfish (since the verb "cost" is plural, therefore the total payment of rainbow fish is 6$ more than the total payment of gold fish). Based on this, 2y + 6 = 8x 2y = 8x - 6 ...................> equation II
Substitute by equation II in equation I, we can get the following equation: 8x + 8x - 6 = 37 16x = 43 ................> The desired equation (equation III)
Solving equation III, we can calculate the price of one gold fish as follows: 16x = 43 x = 2.6875$
If we substitute by the value of x in equation I, we can calculate the price of one rainbow fish as follows: 8(2.6875) + 2y = 37 y = 7.75$
Since Peyton has 2 pizzas and each is cut into 10 equal slices that would mean 2x10 which is 20 and then it says she and her friends eat 14 slices which means take away 14 minus 20 which is 6 so the decimal for only 6 would be 0.6 which is the answer. Hope this helped.
