If you would like to know how many of each type of fish did Carlos buy, you can calculate this using the following steps:
x ... the number of angelfish
y ... the number of parrotfish
405 tropical fish bought
8 times as many parrotfish as angelfish ... 8 * y = x
405 = x + y
405 = 8 * y + y
405 = 9 * y
y = 405 / 9
y = 45 parrotfish
x = 8 * y = 8 * 45 = 360 angelfish
The correct result would be 45 parrotfish and 360 angelfish.
1 is false,
2 is false,
3 is true,
4 is false.
1. Does 4 x 10^-7 = .2 (2 x 10^-5)?
4 x 10^-7 .4 x 10^-5
4 x 10^-7 4 x 10^-6
Nope!
2. Does 2 x 10^5 = 40(5 x 10^4)
2 x 10^5 200 x 10^4
2 x 10^5 2 x 10^6
Nope!
3. Does 6 x 10^4 = 2(3 x 10^4)
6 x 10^4 6 x 10^4
Yes!
4. Does 7 x 10^-5 = .1 x 7 x 10^-3?
7 x 10^-5 .7 x 10^-3
7 x 10^-5 7 x 10^-4
Nope!
Answer:
The equation has only one solution
Step-by-step explanation:
we have
Solve for x
Distribute in the left side
Remember that
Combine like terms in the left side
Adds 9x both sides
Subtract 13 both sides
Divide by 2 both sides
Rewrite
Therefore
The equation has only one solution
Because the two angles equal each other:
80=20x and solve for x
These are corresponding angles
