1/2 and 3/8 ccommon denominators

Mathematics

2 answers:

Vlada [557]3 years ago

5 0

No it is actually 8

ser-zykov [4K]3 years ago

4 0

Answer: 16 is the common denominator

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A notebook costs £1.50, a pen costs 38p , a pencil costs 24p and a sharpener costs 83p.

Alex_Xolod [135]

Answer:

Step-by-step explanation:

(2 x 0.38) + (5 x 0.24) + (2 x 0.83) = £3.62

£9.00 - £3.62 = £5.38

£5.38 - (2 x 1.50) = £2.38

£5.38 - (3 x 1.50) = 88p!

3 Notebooks

6 0

3 years ago

8.The weight distribution of parcels sent in a certain manner is normal with mean value 12lb and standard deviation 3.5 lb. The

Sladkaya [172]

Answer:

The value is c = 21.1445.

Step-by-step explanation:

Normal Probability Distribution:

Problems of normal distributions can be solved using the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the z-score of a measure X is given by:

$Z = \frac{X - \mu}{\sigma}$

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.

The weight distribution of parcels sent in a certain manner is normal with mean value 12lb and standard deviation 3.5 lb.

This means that $\mu = 12, \sigma = 3.5$