12/13 Onlevel Math 7 Sem Rvw Part 1

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-78.432

Front

A dragonfly can beat its wings 30 times per second. If x is the flying time in seconds, what is the relationship between x and y (the number of times the dragonfly beats its wings)?

Back

y = 30x

Front

Complete the equation that shows the relationship between (x), flying time in seconds and (y), the number of times the dragonfly beats its wings: For the equation, y=mx, what is the value of m? (dragonfly wings can beat 10 times per second)

Back

m = 10

Front

What is the definition of a constant rate of change?

Back

A constant rate of change is a consistent ratio between two quantities, indicating how one quantity changes in relation to another.

Front

If a dragonfly beats its wings 30 times per second, how many times does it beat its wings in 5 seconds?

Back

150 times (30 beats/second * 5 seconds = 150 beats).

Front

What is the formula to calculate the total number of wing beats (y) given the time in seconds (x) and the rate of wing beats per second (m)?

Back

y = mx.

Front

What does the variable 'x' represent in the context of the dragonfly's wing beats?

Back

'x' represents the flying time in seconds.

Front

What does the variable 'y' represent in the context of the dragonfly's wing beats?

Back

'y' represents the total number of times the dragonfly beats its wings.

Front

If a dragonfly flies for 4 seconds, how many times does it beat its wings if it beats 10 times per second?

Back

40 times (10 beats/second * 4 seconds = 40 beats).

Front

What is the product of two negative numbers?

Back

The product of two negative numbers is positive.