Answer: 19 cents
Step-by-step explanation:
Let's say that the cost of a lemon be L and the cost of an orange is O
We get the equation
4L + 3O = 5.45
7L + 4O = 9.30
The first equation can be made into the equation
28L + 21O = 38.15
And the second be made into
28L + 16O = 37.20
The second equation - The first question
5O = 0.95
O = 0.19
Okay, for this one I would use elimination:
8x+(-2y)-10
or
8x-2y=10
2x=4y
x=2y
8(2y)-2y=10
16y-2y=10
14y=10
y=5/7
x=10/7 or 1 3/7. Hope it help!
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
Answer:
(+16) - (+2) = 14
Step-by-step explanation:
Hope this helped you!
Answer:
The coordinates of the reflected triangle are 
, 
and 
.
Step-by-step explanation:
Let be a point 
, reflections across x- and y-axes are represented by the following operations:
x-Axis reflection:
y-Axis reflection:
If we know that 
, 
and 
, the coordinates after both reflections are, respectively:
The coordinates of the reflected triangle are , and .
