|2x-11/5|=39/5
solve foe x

x=2.8

Step-by-step explanation:

Absolute value means to make positive. So it becomes 2x + 11/5 = 39/5

you need to get the x alone so you minus 11/5 from 11/5 which leaves 2x

minus 11/5 from 39/5 which gives you 28/5

Now you have 2x = 28/5

The 2 is touching the x which means multiply but in order to get rid of the 2 you need to cancel it out by dividing it. So now your left with the x.

Now divide 28/5 by 2 which gives you 14/5.

Now you have x =14/5

Divide 14 by 5 and you get 2.8

Answer is x= 2.8

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

she will sew have sewn five dresses   and be 1/3 done with the sixth one in an hour.

step-by-step explanation:

3/4 of an hour=45 mins

lucy makes 1 dress per 11.25 minutes

45 mins+11.25 mins=56.25 mins

60 mins- 56.25 mins=3.75 mins

3.75 mins is 1/3 of of 11.25 mins

therefore she the other 1/3 would be part of the hour and she will have sewn 5 dresses and begun the sixth.

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