If Jamie selected 10 times the pink marble in a total of 420 tries, we can assume that the proportion of pink marble in the total number of marbles is:

10 / 420 = 1/42

So to predict a good number of pink marbles in the total 40 marbles, we just need to multiply the 40 marbles by the proportion found above:

pink marble = 40 * (1/42) = 0.9524

As this number needs to be a whole number, a good assumption is that there is 1 pink marble in the 40 marbles.

8 0

2 years ago

Hi, what is the answer to 4 • 7 – 62 ÷ 3

xeze [42]

Answer:

22/3

Step-by-step explanation:

$4\times\:7-\frac{62}{3}\\\\\mathrm{Multiply\:the\:numbers:}\:4\times\:7=28\\=28-\frac{62}{3}\\\\\mathrm{Convert\:element\:to\:fraction}:\quad \:28=\frac{28\times\:3}{3}\\=\frac{28\times\:3}{3}-\frac{62}{3}\\\\=\frac{28\times\:3-62}{3}\\\\28\times\:3-62=22\\\\=\frac{22}{3}$

8 0

3 years ago

it rained for 7 days during the month of april . About what percent did it rain ( hint aprill has 30 days ) round to the nearst

oee [108]

Answer:

Convert fraction (ratio) 7 / 30 Answer: 23.333333333333%

Step-by-step explanation:

7 0

2 years ago