It's easy once you spot the ones that can cross cancel!
Say we have the fractions 8/10 and 20/23. 
(it's easier to see on top of each other)
If you look diagonally , so 8 and 23 and 10 and 20, you can see that 10 and 20 have a common factor. So we divide it by the highest common factor to reduce those numbers, making it easier to multiply. 10 and 20 can become 1 and 2, dividing by 10. So now we are left with 8/1 and 2/23, and now we multiply normally going across so 16/23.
This works going both diagonals and simplifying both, but in that case it would be easier to try and simplify the fractions before cross multiplying them.
Basically: look for those diagonals and if they can be divided down by the highest common factor, go for it to make it easier to multiply normally afterwards.
Hope I helped!
Answer:
B
Step-by-step explanation:
These lines are parallel so they have no solutions
Using a proportional relationship, it is found that the two equations that have the same constant of proportionality are givn by:
с 1 and 3
<h3>What is a proportional relationship?</h3>
A proportional relationship is a function in which the output variable is given by the input variable multiplied by a constant of proportionality, that is:
y = kx
In which k is the constant of proportionality.
In this problem, the functions and constants are given as follows:
- 3. 8y = 6x -> k = 6/8 = 3/4.
Equations 1 and 3 have the same constants, hence option c is correct.
More can be learned about proportional relationships at brainly.com/question/10424180
Answer:
I think the answer is B. Let me know if im wrong.
Step-by-step explanation:
<u>Statement</u><u>:</u>
A person is running at an initial velocity of 3.7 m/s. If the person is accelerating at 2 m/s².
<u>To </u><u>find </u><u>out:</u>
The person's final velocity after 3 s.
<u>Solution</u><u>:</u>
- Initial velocity (u) = 3.7 m/s
- Acceleration (a) = 2 m/s²
- Time taken (t) = 3 s
- We know, the equation of motion,
- v = u + at
- Putting the values in the above equation, we get,
- v = 3.7 m/s + 2 m/s² × 3 s
- or, v = 3.7 m/s + 6 m/s
- or, v = 9.7 m/s
<u>Answer</u><u>:</u>
The final velocity is 9.7 m/s in the direction of the motion.
Hope you could understand.
If you have any query, feel free to ask.
