Question

Please help!! I need to get ungrounded so I need help with some work thxxxxx

Answer 1

Answer: 1) 0.64 2) 0.75 and 75% 3)
`(11)/(20)` and 0.55 4)
`(4)/(5)` and 80% 5) 8.5 miles 6) 3.5 hours 7) 30 8) 200 9) 3²·2² 10) 5²·2² 11) yes x=4 12) no x<3 13) no x=7.5 14) yes x>3 15) x=40 16) x=36 17) 144.50 = 8.50x and she worked 17 hours 18) 40%-4 20%-1 25%-2 33 1/3%- 3 19) 1/25, 1/12, 9%, 17% 20) x>49 21) x<5 22) 0.08k<28 they used less than 350 kilowatts 23)
`(11)/(20)`, 0.55, 55% 24) 1/2, 0.50, 50% 25)
`(15)/(4)`, 3.7, 3 1/7, 3.07

Explanation:

1) 16/25=64/100=0.64

2)3/4=75/100=0.75

3)55/100= 11/20

4)80/100=4/5

5)850/100= 8.5

6) 245=70x→x=3.5

7)
`2^(4)`·3²·5=720

8)2·2·2·5·5=200

9) 36= 9·4=3·3·2·2

10)100=10·10=5·2·5·2

11) 3+5x=23→5x=20→x=4

12)x+19<22→x<3

13)2x-6=9→2x=15→x=7.5

14)x+3>6→x>3

15)12x=480→x=40

16)x+24=60→x=36

17)114.50=8.50x→17=x

18)25/100=2/8, 33 1/3= 2/5, 40/100=4/10, 20/100=2/10

19)9%= 9/100, 1/12=8.3/100, 17%=17/100, 1/25=4/100

20)x-32>17→x>49

21)9x<45→x<5

22)0.08k<28→k<350

23)55/100=11/20=0.55=55%

24)25/50=1/2=0.50=50%

25)15/4=375/100=3.7, 3 1/7=22/7=314.29/100=3.14,

Answer 2

15 ) 12 x 35 = 420

16) 24 + 36 = 60

17 ) 17 hours

( i'll do more later i have to do something sorry just remind me good luck with the whole grounded thing )

Explanation:

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