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emmasim [6.3K]
3 years ago
6

Solve the linear equation: 3.4 + 2(9.7 – 4.8x) = 61.2

Mathematics
1 answer:
Ganezh [65]3 years ago
7 0

Answer:

- 4

Step-by-step explanation:

(2*(Rationalize(9.7)-Rationalize(4.8x)))==Rationalize(61.2)-Rationalize(3.4)

Rationalize(18.4)-Rationalize(2.8x)

==Rationalize(57.8)

-Rationalize(2.8x)==Rationalize(57.8)-Rationalize(18.4)

x= 38.4÷-2.8

:x= -4

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The 90%  confidence level is  19.15<  L  <   20.85

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     The sample size is  n =  64

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           \= x - MOE  <  L  <  \= x  + E

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         20  - 0. 85 <  L  <   20  + 0.85

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