<h3>Given</h3>
regular paper costs $3.79 per ream
recycled paper costs $5.49 per ream
$582.44 was spent for 116 reams
<h3>Find</h3>
the numbers of reams of each type that were purchased
<h3>Solution</h3>
Let r and g represent the numbers of reams of regular and recycled ("green") paper, respectively.
... r + g = 116 . . . . . . . . 116 reams were purchased
... 3.79r + 5.49g = 582.44 . . . . this is the total cost of the purchase
Solve the first equation for r and substitute that into the second equation.
... r = 116 - g
... 3.79(116 - g) + 5.49g = 582.44 . . . . . use the expression for r
... 1.70g + 439.64 = 582.44 . . . . . . . . . simplify
... g = (582.44 -439.64)/1.70 = 84 . . . . subtract the constant, divide by 1.70
... r = 116 -84 = 32 . . . . . . . . . . . . . . . . . use the equation for r
32 regular reams and 84 recycled reams were purchased
Answer:
-360
Step-by-step explanation:
The volume of the outer layer is 2670.57 cubic centimeters.
Given
The aspherical object has a diameter of 18 cm.
It has a spherical inner core with a diameter of 9 cm.
<h3>The volume of outer layer;</h3>
The volume of the outer layer is given by the following formula;
The volume of the outer layer is given by;
Entire sphere - Inner sphere= Outer layer
Radius of Entire sphere = 9 cm
Radius of Inner sphere = 4.5 cm
Therefore,
The volume of the outer layer is;
Hence, the volume of the outer layer is 2670.57 cubic centimeters.
To know more about volume click the link given below.
brainly.com/question/26572966
Answer:
a
Step-by-step explanation: