A maths textbook is 1/2 inches thick. The shelf in the maths classroom is 34'/2 inches long. Will a set of 20 books fit on the
shelf? Show why.

The 20 books will fit without problems on the shelf.

Step-by-step explanation:

Given that a maths textbook is 1/2 inches thick and the shelf in the maths classroom is 34 '1/2 inches long, to determine if a set of 20 books will fit on the shelf, the following calculation must be performed:

1/2 = 0.5

34 1/2 = 34.5

34.5 - (20 x 0.5) = X

34.5 - 10 = X

24.5 = X

Thus, it is shown that the 20 books will fit without problems on the shelf.

30 miles

step-by-step explanation:

we know that 60 seconds equals 1 minute and 60 minutes 1 hour

44 ft       60 sec     60 min     158400   ft

  *   *   =

1 sec       1 min       1 hour         hour

we know that there are 5280 ft per mile

158400   ft       1 mile         30 miles

  *   =

1   hour               5280 ft     1 hour

so in 1 hour   it can travel 30 miles

(0.2)+(-8)=0.3+-3+0.3m is the equation i guess? ?

step-by-step explanation: