Answer:
The solution is x=1,y=2,z=3
Step-by-step explanation:
The given system of equations is ;\
2x−3y+4z=8...(1)
3x+4y−5z=−4...(2)
4x−5y+6z=12...(3)
Make x the subject in equation (1)
Put equation (4) into equation (2) and (3)
Multiply through by;
Expand;
Simplify;
Equation (4) in (3)
Put equation (6) into equation (5)
z=3
Put z=3 into equation (6)
y=2(3)-4=2
Put y=2 and z=3 into equation 4
The solution is x=1,y=2,z=3
Answer:
1.67
Step-by-step explanation:
after the decimal we have the
tens
hundreths
thousanths
(usually math doesn't ask you to go farther than the thousanths place)
because 15/9 is 1.66666, you will go to the hundreths place and round that six. Six is one more than five so it gets rounded up. That changes the decimal to 1.67. You do not change it to 1.7, because it asked you to round to the nearest hundred not the nearest tens
Answer:
28 dollars is the new price.
Step-by-step explanation:
Answer:
The graph answer choices are needed to answer this question, otherwise no one can help you.
Step-by-step explanation:
Answer:
1. .26
2. .29
3. .22
4. .23
Step-by-step explanation:
3.1 ÷ 12 = .26
2.92 ÷ 10 = .29
3.52 ÷ 16 = .22
1.85 ÷ 8 = .23
<em>good luck, i hope this helps :)</em>
