math
posted by deedra .
could someone please check these problems for me? Thank you!
1. 0.7x<35
x<50
2. Solve by elimination
3x+4y=3
6x+8y=6
answer:0
3. find y intercept to graph
x+5y=10
answer: (0,2)(10,0)
4. use distributive law to solve
7(w5)=35
7w35=35
if i add 35 to both sides i get 0
5. Simplify
1[61(5885)]
1[61(27)]
1[61+27]
61+27
34

1. Doesn't the inequality sign change directions when you divide by a  sign?
2. The lines are the same, no solution.
3. the y intercept is 2. I am not certain why you provide the other information.
4, 5 correct 
When you multiply or divide an inequality by a negative number, change the direction of the arrow
1. 0.7x<35
x>50
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