The sum of two numbers is 50. One number is 10 less than three times the other number. What are the two numbrs

  15, 35

Step-by-step explanation:

Let x represent the smaller number. Then the larger is 3x-10, ten less than 3 times the smaller. Their total is ...

  x + (3x -10) = 50

  4x = 60 . . . . . . . . add 10

  x = 15 . . . . . . . . . .divide by 4

  50 -15 = 35

The two numbers are 15 and 35.

Check

35 is 10 less than 3×15 = 45.

b

step-by-step explanation:

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