Copper because it has a reddish color and turns green when it rusts.
4(2a-6)+8b=4(2*8-6)+8*3. Use PEMDAS. 4(16-6)+24. 4(10)+24=40+24. 40+24=64.
Answer:
Step-by-step explanation:
Please consider the complete question.
Dean loves rocks! He has 6 pieces of granite, 3 pieces of marble, 14 pieces of sandstone, and 1 piece of slate. What is the ratio of pieces of sandstone to pieces of marble in Dana's collection?
We can see that there are 14 pieces of sandstone and 3 pieces of marble.
Let us set a ratio.
Therefore, the ratio of pieces of sandstone to pieces of marble in Dean's collection would be .
6 5/6 is the correct answer
Answer:
Option C.
Step-by-step explanation:
we have
-----> equation A
-----> equation B
we know that
The solution of the system of equations is the intersection point both graphs
using a graphing tool
see the attached figure
The intersection point is (3,-7) -----> is a common point both lines
The point (1,-3) belong to the line A
The point (6,-6) belong to the line B
therefore
a line includes points 1 comma negative 3 and 3 comma negative 7. A line includes points 3 comma negative 7 and 6 comma negative 6