Question

Can someone please answer my question please answer it correctly please show work please I need it

Answer 1

Answer:

question 3) A

question 4) A

question 5: C

7)1.5a-0.5

8) B

9)B 58/12

lets take "x" as the length of each class

so

30+ 42+6x=456(converted 7 3/5 hours into minutes)

combine like terms:

72+6x=456

2) subtract 72 on both sides

6x=384

3)divide both sides by 6

x=64

she spends 64 mins in each class or 1 and 1/15 hours

Question 4: (u dont need to show any work for this as -4/9=4/-9 it doesn't matter where the negative sign goes as long as its negative)

Question 5) for every 1/2 inch on the picture, the actual size of the bedroom is 4 feet If u were to take a ruler and measure out the lengths u would find that the bedroom appears to be 1.97 in by 1.6 inches. You would convert each length from inches to ft. 1.98*4/0.5=15.76 and 1.6*4/0.5= 12.8

15.76*12.8= 201.728

the answer would be option C

7) -2.9a+6.8+4.4a-7.3=

-2.9a+4.4a=1.5a

6.8-7.3=-0.5

1.5a-0.5

Answer 2

Answer:

3. 60 ÷ 5 = 12

12 × 3 = 36

7 3/5 hours = 7 hours and 36 minutes

7:36 - 30 = 7:06

7:06 - 42 = 6:24

6:24 ÷ 6 = 1:04

A. 1 1/15 hours

4. fractions are equivalent regardless of the negative sign placement

A. 4/-9 = -4/9

5. 3/2 = 12

4/2 = 16

12 × 16 = 192

C. 192 square feet

7. -2.9a + 6.8 + 4.4a - 7.3 (add -2.9a + 4.4a)

1.5a + 6.8 - 7.3 (subtract 6.8 - 7.3)

1.5a - 0.5

D. 1.5a - 0.5

8. 552.50 × 0.88 = 486.2

486.2 ÷ 7 = 69.457

B. m > 69.45

19. -1/6 + 2/3(9 - 3/4) - 1/2

2/3 × 9/1 = 18/3

2/3 × 3/4 = 6/12

-1/6 + 18/3 - 6/12 - 1/2

-1/6 + 36/6 - 6/12 - 1/2

35/6 - 6/12 - 1/2

70/12 - 6/12 - 1/2

64/12 - 1/2

64/12 - 6/12

B. 58/12