Answer:
3/5 y +9/10 z
Step-by-step explanation:
4/5 y + 7/10 z - 1/5 y + 1/5 z
4/5 y - 1/5 y + 7/10 z + 1/5 z
We need to get a common denominator for the z term of 10
4/5 y - 1/5 y + 7/10 z + 1/5 *2/2 z
4/5 y - 1/5 y + 7/10 z + 2/10 z
3/5 y +9/10 z
Either c or d but most likely c
First convert the first equation to combine like terms. Then set your equations up as an addition problem. You want at least one of your variables (y) to be of opposite values so the will cancel out to leave you with just one variable (x). Plug in 1/3 for the x into one of the equations to solve for y. Then write as an ordered pair.
Hope you could understand.
If you have any query, feel free to ask.
Answer: approximately 11.7
Step-by-step explanation: You should us Pythagorean theroem a2+b2=c2 a is 10 so it would be 10 squared b is 6 squared so 10 squared is 100 and 6 squared is 36 so just add 100+36 equals 136=c2 so then square root that and you get approximately 11.7. Hope it helps have a good day!