Please help me find the values of y and z .

y=120 and z=20

Step-by-step explanation:

bringing (5z-40)° in their vertically opposite side

5z-40=60[being the pair of corresponding angle]

or, 5z=60+40

or, 5z=100

z=20

again,

5z-40+y=180[sum of straight angle]

or, 5×20-40+y=180

or, 100-40+y=180

or, y=180-60

y=120

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

step-by-step explanation:

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