Which equation has 5 as the value of k? 2.4(k−1.3)=15.12 1.1k−1.8=7.3 1.4(0.7k+2)=2.1 1.8k+3.2=12.2

In each of the possible answer choices, substitute 5 for k and determine whether the resulting equation is true or false.

4(k−1.3)=15.12 becomes 4(5-1.3) = 15.12, or 4(3.7) = 15.12 FALSE

1.1k−1.8=7.3 becomes 1.1(5) - 1.8 = 7.3 FALSE

1.4(0.7k+2)=2.1 becomes 1.4(0.7*5+2) = 2.1 FALSE

1.8k+3.2=12.2 becomes 1.8(5) + 3.2 = 12. 2 TRUE

part 1 answer = 8

part 2 answer = 72

step-by-step explanation:

part 1 explanation = add all of the numbers, then divide by how many numbers you have. so, 200/25 = 8.

part 2 explanation = not gonna lie, this is hard to explain, so just google how to do it.

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