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3 years ago

A wood stove burns 4 logs in 2 hours how many logs burn in 9 hours ?

Mathematics

2 answers:

ziro4ka [17]3 years ago

8 0

Answer:

18 logs.

Step-by-step explanation:

Since a stove burns 4 logs per 2 hours, then the stove will burn 2 logs in one hour. There fore in 9 hours the stove will burn 2*9 which is 18 logs.

4:2= 2 logs per hour

2*9=18 logs per 9 hours.

Sever21 [200]3 years ago

5 0

Answer:

Step-by-step explanation:

16 Because 2 divided by 8 equals 4 then 4x4 equal 16

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Answer:

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Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 73.3

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Formula:

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$\displaystyle\frac{x - 73.3}{9.7} = 0.305\\\\x = 76.26$

We have to find the value of x such that the probability is 0.05

$P(X < 0.95) = \\\\P( X < x) = P( z < \displaystyle\frac{x - 73.3}{9.7})=0.95$

Calculation the value from standard normal z table, we have,

$\displaystyle\frac{x - 73.3}{9.7} = 1.645\\\\x = 89.26$

Thus, the numerical value of score to achieve grade B is

$76 \leq x \leq 89$

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Answer:

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Step-by-step explanation:

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