Please help me out with some schoolwork questions Thanks!!!?

Question

18.)5% of 320 = ____?

19.)20% of 25 = ____?

20.)- 7 - 3 = -4
A.)True
B.)False

22.)If you can travel from Orlando to Miami (240 miles) in 4 hours; how long would it take you to travel from Ft. Lauderdale to Tallahassee (420 miles)?
A.)6 hours
B.)7 hours
C.)8 hours
D.)8 hours 30 minutes

23.)Match the numbers to the correct letters:
1)8 < 4(x+1)
2)3(x-1) < 3
3)2(x-1) < -4
4)5x + 4 > -6

A) x < 2
B) x > 1
C) x > -2
D) x < -1


#25. )Solve this inequality showing ALL work: -2x + 4 < 16

Answer 1

20% of 320 = 64

- - - - - - -

20% of 25 = 5

- - - - - - -


d = rt

d/t = r. . .←. .us this formula

the distance form orlando to miani is 240 miles

Divide 240 by 4 to get the rate

240/4 = 60

The rate is 60 mph.

- - - -

Fond the time

d = rt

d/r= t. . .←. .us this formula

The distance from Lauderdale to Tallahassee is 420 miles

Divide 420 by 60 to get the time

420/60 = 7

The trip from Lauderdale to Tallahasse wil take 7 hours.

- - - - - - -

- 7 - 3 = - 4

- 11 = - 4

False

- - - - - - -

8 < 4(x + 1)

8 < 4x + 4

Dispose 4

8 - 4 < 4x + 4 - 4

4 < 4x

4/4 < 4x/4

4/4 < x

1 < x

- - - - -

3(x - 1) < 3

3x - 3 < 3

Dispose 3

3x - 3 + 3 < 3 + 3

3x < 6

3x/3 < 6/3

x < 6/3

x < 2

- - - - - - -

2(x + 1) < - 4

2x + 2 < - 4

Dispose 2

2x + 2 - 2 < - 4 - 2

2x < - 6

2x/2 < - 6/2

x < - 6/2

x < - 3

- - - - - - -

5x + 4 > - 6

Dispose 4

5x + 4 - 4 > - 6 - 4

5x > - 10

5x/5 > - 10/5

x > - 10/5

x = - 2

- - - - - - - - -s-

Answer 2

18) 16

19) 5

20)

B) False

-7-3 = -10

22.

v=d/t
=240/4 = 60 mph

v =d/t

t=d/v
=420/60
= 8h

C) 8 hours

23)


8<4(x+1)
8<4x+4
4<4x
x>1

1 matches to B

2) 3x-3<3

3x<6
x<2

2 matches to A

3) 2x-2 < -4
2x<-2
x<-1

3 matches to D

4) 5x+4>-6
5x>-10
x>-2

4 Matches to C


25)

-2x+4<16
-2x<12
x< -6



Hope I helped, good luck.

Answer 3

18)16
19)5
20)FALSE
22)B.
23) 1.B
2.A
3.D
4.C

25) -2x+4<16
-4 -4 subtract 4 from each side
-2x<12
--- --- divide -2 from each side
-2 -2
x< -6 answer

Answer 4

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