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2 years ago

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Mathematics

1 answer:

Ray Of Light [21]2 years ago

5 0

Answer:

$3x+2y+4=27$

Step-by-step explanation:

Let

x ----> represents the number of 3-point field goals

y ----> represents the number of 2-point field goals

we know that

The number of 3-point field goals multiplied by 3 plus the number of 2-point field goals multiplied by 2 plus the number of free throws (4) multiplied by 1, must be equal to 27 points

The equation that represent this situation is

$3x+2y+4=27$

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Step-by-step explanation:

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3 years ago

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In a sample of 700 gas stations, the mean price for regular gasoline at the pump was $2.894 per gallon and the standard deviati

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Answer:

$P(x < 2.892) = 4.36\%$

Step-by-step explanation:

Given

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$\mu = 2.894$ -- Mean

$\sigma = 0.009$ --- Standard deviation

$n = 55$ -- Sample

Required: $P(x < 2.892)$

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First, calculated the z score

$z = \frac{x - \mu}{\sqrt{\frac{N -n}{N -1}} * \frac{\sigma}{\sqrt n}}$

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Using z table

$P(x < 2.892) = 0.043633$

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3 years ago

What is the sum? 3k/k^2+k-7/4K

Aleksandr-060686 [28]

Answer:

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Step-by-step explanation:

A suitable common denominator is 4k^2. (This eliminates the first and last choices.)

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3 years ago

If 3 is added to a number and the sum is multiplied by 7,gives 91 as result. Find the number.

WINSTONCH [101]

Answer:

Step-by-step explanation:

10+3 = 13

13 x 7 = 91

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