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Lelu [443]
3 years ago
6

Someone help please and try give me the working out for all of them or one of them if u give working out for the questions i wil

l give a BRAINLIEST

Mathematics
2 answers:
soldi70 [24.7K]3 years ago
5 0
1.
4x + 5x = 900 \\ 9x = 900 \\ x = 100
Ratio = 400 : 500

2.
3x + 7x = 1000 \\ 10x = 1000 \\ x = 100
Ratio = 300 : 700

3.
3x + 5x = 200 \\ 8x = 200 \\ x = 25
Ratio = 75 : 125

4.
7x + 8x = 600 \\ 15x = 600 \\ x = 40
Ratio = 280 : 320

13.
7x + 3x + 2x = 120 \\ 12x = 120 \\ x = 10
Ratio = 70 : 30 : 20

14.
5x + 6x + 7x = 450 \\ 18x = 450 \\ x = 25
Ratio = 125 : 150 : 175

15.
5x + 8x + 9x = 550 \\ 22x = 550 \\ x = 25
Ratio = 125 : 200 : 225

16.
3x + 7x + 11x = 13.86 \\ 21x = 13.86 \\ x = 0.66
Ratio = 1.98 : 4.62 : 7.26

Hope this helps. - M
Bas_tet [7]3 years ago
3 0
1) 900/4=225
225*5=1125
900:1125

2) 1000/3=333.33
333.33*7=<span>2333
1,000:2333
</span>
3) 200/3= 66.66
66.66*5=333
200:333

4) 600/7=<span>85.7
</span>85.7*8= <span>686
</span>600:686

13) 120/7=<span>17.1
</span><span>17.1*3=51
</span><span>17.1*2=34
</span>120:51:34

14)450/5= 90
90*6= 540
90*7= 620
450:540:620

15) 550/5=110
110*8= 880
110*90= 990
110:880:990

16) 13.86/3= 4.62
4.62*7= 32
4.62*11= 51
13.86:32:51
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