Select all the ordered pairs that are solutions to the equation 5x + 2y = -8

Question options:

(4, -14)

(0, -4)

(-4, 0)

(1, -2)

(−85,0)

The answer to your question is only (0, -4) is a solution to the equation.

Step-by-step explanation:

Equation

                      5x + 2y = - 8

Process

1) Substitute all the possible solutions in the equations to find the answer

a) (4, 14)

                      5(4) + 2(14) = - 8                  

                       20 + 28    = -8

                                  48 = -8                This is not a solution

b)

                      5(0) + 2(-4) = - 8

                         0     - 8    = -8              This is a solution

c)

                      5(-4) + 2(0) = - 8

                      -20   + 0     = -8

                                -20  = -8                 This is not a solution

d)

                      5(1) + 2(-2) = - 8

                           5  +  -4 = 8

                                     1 = 8                   This is not a solution

e)

                      5(-85) + 2(0) = - 8

                           -425 + 0 = -8

                                  -425 = -8              This is not a solution

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