The length of the rectangle is 19 less than 3 times the width. If the width of the rectangle is 9 cm, what would the length of the rectangle be?

Step-by-step explanation:

Given,

width = 9cm

so a/q length of the rectangle will be 19 - ( 9×3) = 19 - 27 = 8 cm

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8 cm

Step-by-step explanation:

Write out the equation described in the first sentence.

"Length is 19 less than..." means L = ... - 19

"Three times the width" means 3W

So, L = 3W - 19

Plug in value of W

L = 3(9) - 19 = 8 cm

im alright what do you need

step-by-step explanation:

1,407.5 hours

step-by-step explanation:

we first convert all the time to hours and then sum them up.

there are 24 hours in 1 day, in 58 days, there are 24 x 58 = 1,392 hours.

there are 60 minutes in 1 hour, thus, 30 minutes will be equivalent to 30 / 60 = 0.5 hours.

therefore, the number of hours it will take mercury to complete a full rotation is 1,392 + 15 + 0.5 = 1,407.5 hours