Merry is certain that every time she parks in the municipal garage it cost her at least $2.20. if the garage charges .45 plus .25 for each half hour, how long is merry's car parked?

The time for which parking charge taken is 3.5 hours  

Step-by-step explanation:

Given as :

The total cost paid by Merry for car parking = $2.20

The charge taken by garage for parking is as ( $0.45 ) +( $0.25 for each half hour)

Let the Time taken as half hour = x

So, According to question

0.45 + 0.25 × x = $2.20

Or, 0.25 × x = $2.20 - $0.45

I.e 0.25 × x = $ 1.75

∴   x = $ ( =  7  

So,Total time spend = = 3.5 hours

Hence The time for which parking charge taken is 3.5 hours     Answer      

38.5

step-by-step explanation:

lets say, first number = r

second number = 3r+7

total = 49

(r)+(3r+7)= 49

4r+7 = 49

4r = 42

r = 42/4

r= 10.5

3r+7 = 3(10.5)+7 = 38.5

hope this

step-by-step explanation: