0.5 + 0.3y = 0.7y - 0.3
What’s the answer and the steps?

Step-by-step explanation:

0.5+0.3y=0.7y-0.3

You collection the like terms which looks likes

0.5+0.3=0.7y-0.3y

0.8y=0.5

Then you simplify, you gotta use a calculator tho

0.8y/0.8= 0.5/0.8

y=1.6

y = 2

Step-by-step explanation:

1) 0.5 + 0.3y = 0.7y - 0.3 given

2) -0.5 = - 0.5 subtract on both sides to isolate the variable (y)

3) 0.3y = 0.7y - 0.8 Subtract again to isolate the variable (y)

- 0.7y -0.7y

4) -0.4y = -0.8 divide

-0.4y/ -0.4y

-0.8y/ -0.4y y = 2

you probably already have the answer but anyways it's b. 15.0

step-by-step explanation:

54 kilometers per hour

step-by-step explanation:

according to rules:

1 km = 1000 meter

which means that 1 meter = 1/1000 km

1 hour = 3600 second [ as 1 hour = 60 min = 60 *60 seconds ]

which means that 1 second = 1/3600 hour

therefore, 1 kilometer/hour =

thus to convert 15 meter per second to kilometer per hour, we multiply 15 to 3.6 kilometer/hour.

15 meter/second=   which is the required answer.