Slove this equation |4 - 2x| + 5 = 9

x=0 or x=4

Step-by-step explanation:

|4−2x|+5=9

|−2x+4|+5=9

|−2x+4|+5+−5=9+−5

|−2x+4|=4

|−2x+4|=4

Solution 1-

−2x+4=4

−2x+4−4=4−4

−2x=0

=

x=0

Solution 2-

−2x+4=−4

−2x+4−4=−4−4

−2x=−8

=

x=4

b. 1.25 hr

step-by-step explanation:

if you have a constant speed of 60 mph, then you have a ratio between 60 mi. to 1 hr. dividing both sides by 60 we get the ratio

1 mi. to

then mult. both sides by 75 we get the ratio

75 mi. to

simplifying we get

75 mi. to

or 1.25 hr.