Phillip should buy 5 packages of erasers so he will have 60 of them. Then he should buy six packs of pencils so he will have 60 of both pencils and erasers
Collin invested $5529 in the account paying 2% and $2171 in the account paying 9% interest.
<u>Explanation:</u>
Let x be amount invested at 2%
So, 7700 - x will be the amount invested at 9%
0.02(x) + 0.09(7800 - x) = 315
0.02x + 702 - 0.09x = 315
-0.07x = -387
x = $5529
7700 - x = 7700 - 5529
= $2171
Collin invested $5529 in the account paying 2% and $2171 in the account paying 9% interest.
Answer:
Option (A) and (E)
Step-by-step explanation:
Characteristics of the quadratic function representing the path of a whale as it surfaces for air is,
y = -4x²
1). Since domain of the given function will be all real number x until ocean hits the shore on both the sides of the path.
2). Range of the function will be the value of y from the bottom of the ocean to the surface.
3). Whale will touch the surface of the ocean at one point only.
4). Function 'f' will increase initially upto the surface of the ocean and then it will decrease.
5). Point where the hale touches the surface will be maximum.
Therefore, Options (A) and (E) will be the correct options.
Answer:
x=(28-y)/3
Step-by-step explanation:
Just divide both sides by 3.