X = 2 for the first one by cross multiplying......sorry about not having time for the other 2
So, we write a fraction, which would be 12/100. Then we would do 12/100 = x/550. You could divide 100 by 550, which is 5.5. Then we would multiply 5.5 by 12, which is 66. So 66 people would be wearing glasses.
Answer:
the last one
Step-by-step explanation:
The answer is d x 15 =100
In order to get the value of d, you must transpose the constant 15 to the left side of the equation.
It can also be written like this:
15d = 100
Divide both sides by 15:
15d / 15 =100/15
d = 6.667 meters per second
