Answer:
Step-by-step explanation:
1. ∠1 ≅∠3 1.Given
2. m∠1 = m∠3 1. Given
3. ∠1 and ∠2 are linear pair 3.) linear pair
4. ∠1 an ∠2 are supplementary 4. Definition of linear pair
5. ∠1 + ∠2 = 180 5. Definition of linear pair
6. ∠3 + ∠2 = 180 6.substitution property of equality
7. ∠2 an ∠3 are supplementary 7. Proven
Answer:
oh
Step-by-step explanation:
Answer: Work done by both of them in k hours is

Explanation:
Since we have given that
Number of hours Mr. I does a job = x hours
Number of hours Mr. L does a job = y hours
Work done by Mr. I is given by

Work done by Mr. L is given by

Work done if they do together is given by

Work done if they work together for k hours is given by

Hence, work done by both of them in k hours is

ANSWER
Yes it is very true
<u>EXPLANATION</u>
If the two equations intersect at
then this point must satisfy the two equations.

We substitute
in to erquation (1)




We now substitute
in to erquation (2) also



Since the point satisfy all the two equations, it is true that they intersect at 