For two equal sets there: a) cardinality is same b) cardinality is different c) may be same or different d) none of the mentioned state whether the given statement is true or false cardinality of the set of lower letter english alphabets is 26. a) true b) false • if a is a subset of b and b is a subset of c,then cardinaity of a ubuc is equal to a) cardinality of c b) cardinality of b c) cardinality of a d) none of the mentioned

Equation: 1.5s + 20 = 200

How long it will take for Samantha to finish a 200 meter race: 120 seconds

Step-by-step explanation:

The problem says Samantha walks at a rate of 1.5 meters per second. If we let "s" represent seconds, then we can write this as 1.5s. Since she gets a 20 meter head start, you can then write the equation as 1.5s + 20. Finally, its says use this equation to find how long it would take to finish a 200 meter race. So you set the previous equation equal to 200. Or 1.5s + 20 = 200.

To solve for "s" and find how long it would take to finish a 200 meter race, you first subtract 20 from each side. You should be left with 1.5s = 180. Then divide by 1.5. 180/1.5 equals 120. So it will take Samantha 120 seconds to finish the 200 meter race.