Can you guys help me on these problem
15.) 2.2x=15
16.) 14-9x=37
17.) 3(3t-14)=-4
18.) 2.69-3.64x=23.78x
2006-07-26 18:39:52 · 4 answers · asked by jaqueline_nguyen 2 in Education & Reference ➔ Homework Help
Can you give me answer please
2006-07-26 18:49:20 · update #1
15). 2.2x=15
or x = 15/2.2= 150/22 = 6.82 (rounded to nearest 100th)
16). 14-9x=37
or -9x = 37-14 = 23
or x = - 23/9 = -2.56
17). 3 (3t-14)= -4
or 9t - 42 = -4
or 9t = 42-4 = 38
or t = 38/9 = 4.22
18). 2.69-3.64x=23.78x
or -3.64x-23.78x=-2.69
or - 27.42 x = - 2.69
or 27.42 x = 2.69
or x = 2.69/27.42 = 0.09
2006-07-26 18:47:13 · answer #1 · answered by TJ 5 · 2⤊ 0⤋
15.) 2.2x=15
x=15/2.2
x=6.818181818181...
16.) 4-9x=37
9x=37-9
x=28/9
x=3.111111111111...
17.) 3t-14=-4/3
3t=-1.33+14
t=12.67/3
t=4.22333333...
18.) 2.69-3.64x=23.78x
2.69=23.78x+3.64x
2.69=27.42x
x=0.0981035
2006-07-26 18:51:22 · answer #2 · answered by aashishg_24 1 · 0⤊ 0⤋
15)2.2x=15 x=15/2.2=6.82
16)14-9x=37 x=(37-14)/-9=23/-9=-2.56
17) 3(3t-14)=-4 9t=38 x=38/9=4.22
18)2.69-3.64x=23.78x 27.42x=2.69 x=2.69/27.42=0.10
2006-07-26 18:52:07 · answer #3 · answered by rumradrek 2 · 0⤊ 0⤋
15)6.8181
16. -2.555
17. 15.3333
18. 0.98
2006-07-26 18:48:02 · answer #4 · answered by Keith T 2 · 0⤊ 0⤋