The larger of two numbers is 20 more than the smaller number. Four times the larger increased by the smaller number is 25. Find both numbers.

The numbers are 9 and -11

Step-by-step explanation:

Given

Represent both numbers with x and y where x is the biggest.

Substitute 20 + y for x in the second equation

Solving for y

Solving for (x)

The numbers are 9 and -11

5x+2x=49

7x=49

x=7. 35 apples

54 km / hours

step-by-step explanation:

we need to convert seconds to hours

60 seconds = 1 minutes

60 minutes = 1hour

15 m         60 second   60 minutes

  * *         = 54000 meters/ hour

second     1 minute             1 hour

now we need to convert meters to km

1000 m = 1 km

54000 m       1 km

*   = 54 km / hours

hour               1000m