Answer:
1. 3/5
2. 9/20
3. 1/5
4. 9/10
Step-by-step explanation:
remember, you can do anything to an equation as long as you do it to both sides
we can do a subsitution
y=x+6
y=-7x-10
since y=x+6, we can subsitute x+6 for y in the other equation
y=-7x-10
x+6=-7x-10
add 7x to both sides
8x+6=-10
minus 6 from both sides
8x=-16
divide both sides by 8
x=-16/8=-2
the valu eof x that satisfies both equations is x=-2
Ratio of volumes is 2^3:5^3 or 8:125 192/V = 8/125 V = 3000 in^3
1/3 is the same as 2/6, so we can rewrite this as:
-5/6 + 1/3 = -5/6 + 2/6
To add fractions, add the numerators:
-5 + 2 = -3
So, -5/6 + 2/6 = -3/6
This can reduce, since 3 and 6 are divisible by 3.
-3/6 = -1/2
A) 36
B)6
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