There are x counters in a bag.
14 of the counters are blue.
Hassan takes at random 30 counters from the bag.
6 of these 30 counters are blue.
Work out an estimate for the value of x.

Respuesta :

msm555

Answer:

[tex] x = 70[/tex]

Step-by-step explanation:

The probability of picking a blue counter from the bag is given by the ratio of the number of blue counters to the total number of counters.

In this case, the probability is [tex] \dfrac{{14}}{{x}} [/tex].

Hassan takes 30 counters, and the probability of picking a blue counter from these 30 counters is [tex] \dfrac{{6}}{{30}} [/tex].

So, we can set up an equation based on the probability:

[tex] \dfrac{{14}}{{x}} = \dfrac{{6}}{{30}} [/tex]

[tex] \dfrac{{14}}{{x}} = \dfrac{{1}}{{5}} [/tex]

Now, solve for [tex] x [/tex] by criss cross multiplication:

[tex] 14 \times 5 = x [/tex]

[tex] 70 = x [/tex]

[tex] x = 70[/tex]

Therefore, an estimate for the value of [tex] x [/tex] is 70 counters.