17 books in total, and 8 new. To find the number of used books, we subtract 8 from 17.
17-8= 9 used books
Now we have 8 new books and 9 used books.
All books: 17
Used books: 9
New books: 8
(a) all books: used books
17: 9
(b) new books: used books
8: 9
{ y=2x+2
{ y=4x-2
2x+2=4x-2
x=2
y=2 ⋅ 2+2
y=6
(x,y)=(2,6)
——
Check solution:
{ 6=2 ⋅ 2+2
{ 6=4 ⋅ 2-2
{6=6
{6=6
P has a y intercept of 6 and a slope of 1 up for every two to the right, 1/2
y = (1/2) x + 6
Q has a y intercept of -3 and a slope of 4 down from every one to the right, -4.
y = -4x - 3
For the solution we equate the two ys,
(1/2)x + 6 = -4x - 3
x + 12 = -8x - 6
9x = -18
x = -2
y = (1/2) (-2) + 6 = 5
Solution: (x,y)=(-2, 5)
615.44 = (3.14)(radius)^2
<span>radius = square-root of (615.44/3.14) </span>
<span>diameter = radius x 2 </span>
<span>diameter = 28 inches
3.14
</span>
Answer:
g = 8
Step-by-step explanation:
We're going to isolate g to find out what it equals, so we have to divide both sides by 6.
6g=48
__ __
6 6
g = 8