Answer:
7:1
Step-by-step explanation:
35mixture(:) means to5 copper
35: 5
35÷5:5÷5 = 7:1
If we multiply the bottom equation by 2 and move x to the right, it becomes:
4y = 2x-38
Now we can substitute it for the 4y in the top equation:
3x + (2x-38) = -23 => 5x = -23+38 => 5x = 15 => x=3
Then 4y = 2*3-38 => y = -8
So the solution is (3,-8)
Answer:
the common difference is +5
Step-by-step explanation:
10-5=5
15-10=5
etc.
goes up by 5 every term so the common difference is 5 or +5
Answer:
The Total Surface Area = 2(84+48+112) = 2× 244
= 488 cm²
Step-by-step explanation:
Volume of brick = 8×14×6
= 672cm³
Answer: 10+12+6+4=32
100/32=3.125
12x3.125= 37.5 percent of the people that were surveyed chose piano.
