Answer:
10x-20y
Step-by-step explanation:
5 x 2x - 5 x 4y
10x - 20y
Numbers can be expressed, ordered and compared by a lot of mathematical principles, properties, models and paradigms. There are different properties of numbers to associate, group and distribute numbers. For example commutative property of addition, 1 + 2 = 3 can be 3 = 1 + 2. Moreover, numbers can be expressed by mathematical form, thus 100 wherein 1 is in the place order of hundreds. And so on… other examples can be mathematical symbols or inequality to compare numbers. For example, 1 > 2. One is less than 2.
1. No solution
2. y= -3x/4-5/2
3. x=8+y
4 I can’t really see it
2.7027027
Step-by-step explanation:
Answer:
7 seconds
Step-by-step explanation:
Distance of the coin above the water is modeled by the equation
where 
is time taken to cover the distance
Now equating with zero.
So, time taken by the coin to hit the water is 7 seconds.
