Kathy can swim 45 meters in 30 seconds. At that rate, how far can she swim in 90 seconds?

135

Step-by-step explanation:

135 meters/90 seconds

Step-by-step explanation:

Kathy swims 45 meters in 30 seconds. Divide 90 with 30:

90 seconds/30 seconds = 3 seconds/1 seconds.

Multiply 45 meters with 3 to get the amount she swam in 90 seconds:

45 x 3 = 135

135 meters is your answer.

~

7! = 7×6×5×4×3×2

3! = 3× 2

as 7! is multiple of 3! because 7! contains 3! that is 3× 2 as factor

so 7! /(3! ) = 7× 6× 5× 4

= 42 × 20

= 840

its b) 840✌✌✌

dhruv⭐