Answer:
The correct option is C
Step-by-step explanation:
Lets find the linear equations:
For Hours
Let
Number of hours in bookstore per week = x
Number of hours for babysitting per week = y
Total number of hours ≤ 16
So the first equation us:
x + y ≤ 16
y ≤ 16 - x
For Money
Let
Amount earned per hour from bookstore = $4
Total Amount earned from bookstore = 4x
Amount earned per hour from babysitting = $8
Total Amount earned from babysitting = 8y
Total Amount earned ≥ $56
So the second equation is:
4x + 8y ≥ 56
8y ≥ -4x + 56
y ≥ -(1/2)x + 7
<h2>587</h2>
Step-by-step explanation:
A lead cube of side 
is used to make spherical pellets of diameter 
.
As the volume of lead is conserved, the volume of raw material equals the volume of finished products.
Let us assume that 
cubes are produced. Volume of a cube of side 
is 
. The volume of a sphere of diameter 
is 
.
n is rounded off to 587.
∴ 587 spherical pellets can be made.
From the problem, the way the spinner is set up could be
red red blue blue green green yellow yellow purple purple
with two sections of each color and 10 total equal sections.
From this we know that 4 out of the 10 sections are red or green.
That means that there is a 4/10 chance of getting a green or a red every time Kevin spins.
Multiply 180 by 4/10 and you get 72.
The spinner will land on red or green about 72 times.
Hope this helps!
$54.79 - $29.99 = $24.80
$24.80 + .25 = $25.05
$25.05 - $4.07 = $20.98
Mrs.Heat has $20.98 dollars in her wallet now.
:)
