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siniylev [52]
3 years ago
11

What is the value of x? round to the nearest hundredths place: 0.45(x + 1.6) + 5x = 18

Mathematics
2 answers:
KatRina [158]3 years ago
8 0

Answer:

3.600

Step-by-step explanation:

0.25(x+1.6)+5x=18

Open the bracket first

0.25x+0.72+5x=18

Collect like terms

0.25x+5x=18-0.72

5.25x=18.72

Divide both sides by 5.25

x=3.566~3.600(nearest hundredth)

Anna [14]3 years ago
5 0

Answer:

x ≈ 3.2

Step-by-step explanation:

0.45(x + 1.6) + 5x = 18

45/100(x + 16/10) + 5x = 18

¹⁰⁾45x/100 + 720/1000 + ¹⁰⁰⁰⁾5x = ¹⁰⁰⁰⁾18

450x + 720 + 5000x = 18000

5450x = 18000 - 720

5450x = 17280

x = 17280/5450

x = 3.17

x ≈ 3.2

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