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3 years ago

6

The shelf life of a particular dairy product is normally distributed with a

1 answer:

Tju [1.3M]3 years ago

4 0

Answer:

The shelf life of a particular dairy product is normally distributed with a mean of 12 days and a standard deviation of 3 days. 3. A line up for tickets to a local concert had an average (mean) waiting time of 20 minutes with a standard deviation of 4 minutes.

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What steps do you use to solve y=x+12 and y=-x+17 an unknown number y is 12 more than an u known number x the number y is also x

Tamiku [17]

Answer:

x=2.5

Step-by-step explanation:

Solve for x in this systems of equations, we already have two values which equal y so half the work is finished for us.

Starting with the equation:

$x+12=17-x$

Add x to both sides to remove the negative x on the right side of the equation:

$2x+12=17$

Subtract 12 from both sides to remove the 12 on the left side of the equation:

$2x=5$

Divide both sides by 2 to cancel out the x coefficient

$x=2.5$

8 0

2 years ago

Herbert has sold 90, 45, 103 and 68 appliances in the last four months, respectively. How many appliances will he need to sell t

Elena-2011 [213]

Answer:

The sale this month = 79

Step-by-step explanation:

Let the amount he needs to sell this month = x

$Average = \frac{sum\ of\ individual\ data\ }{number\ of\ entries}$

$Average= \frac{90\ +\ 45\ +\ 103\ +\ 68\ +\ x}{5}$

Note that number of entries = number of months = 5

To maintain an average sales of 77, the amount of sale in month 5 is determined as follows:

$77 = \frac{306\ +\ x}{5} \\cross-multiplying\\77\ \times\ 5\ = 306\ +\ x\\385 = 306\ +\ x\\x =385\ -\ 306\\x = 79$

7 0

3 years ago

Q3) If B is directly proportional to A and B = 3 when A = 18, find the value of B when A = 24.

LenKa [72]

Answer:

B = 4

Step-by-step explanation:

Given that B is directly proportional to A then the equation relating them is

B = kA ← k is the constant of proportionality

To find k use the condition B = 3 when A = 18 , then

3 = 18k ( divide both sides by 18 )

k = $\frac{3}{18}$ = $\frac{1}{6}$

B = $\frac{1}{6}$ A ← equation of proportion

When A = 24, then

B = $\frac{1}{6}$ × 24 = 4

8 0

3 years ago

Find the value of the missing angle please help!

mezya [45]

Answer:

4th Option, 45.1

Step-by-step explanation:

Cos(Ф) = $\frac{12}{17}$

Ф = Cos⁻¹ ( $\frac{12}{17}$ )

Ф = 45.1

Hope this helps!

4 0

3 years ago

70x6000 associative and commutative properties

ch4aika [34]

70 x 6,000 = 6,000 x 700 (commutative)
70 x 6,000 = 6,000 x 70 (associative)

4 0

3 years ago