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Anna007 [38]
3 years ago
14

The sum of a number and 3 more than twice the number is less than 36. Find the number

Mathematics
2 answers:
Misha Larkins [42]3 years ago
8 0

Step-by-step explanation:

x+2x+3<36

3×<33

x<11

the number is less than 11

alexandr402 [8]3 years ago
3 0

Answer: n < 33/2

Step-by-step explanation:

3 + 2n > 36

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lm(formula = y ~ x1 + x2)

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-41.730 -12.174   0.791 12.374 40.093

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(Intercept) 415.113     82.517   5.031 0.000709 ***  

x1            -6.593      4.859 -1.357 0.207913    

x2            -4.504      1.071 -4.204 0.002292 **  

---  

Signif. codes: 0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1  

Residual standard error: 24.45 on 9 degrees of freedom  

Multiple R-squared: 0.768,     Adjusted R-squared: 0.7164  

F-statistic: 14.9 on 2 and 9 DF, p-value: 0.001395

a).  y=415.113 +(-6.593)x1 +(-4.504)x2

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confidence interval

> predict(mod, newdata, interval="confidence",level=.95)

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> predict(mod, newdata, interval="predict",level=.95)

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1 81.03364 14.19586 147.8714

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