2 years ago

The ratio of boys to girls is 3 to 2 if there are 12 boys, how many girls are there

Mathematics

2 answers:

Anon25 [30]2 years ago

8 0

Answer:

Step-by-step explanation:

The ratio is 3/2 boys/girls

if we call the expression as x there would be a total of 5x girls and boys

3x of this is boys

3x = 12 so x is 4 then 4×2 = 8 girls

son4ous [18]2 years ago

3 0

Answer:

8 girls

Step-by-step explanation:

Starts with 3:2 If there are 3 boys for 2 girls

3 x 2 =6

2 x 2 =4

6:4

6 x 2 =12

4 x 2 =8

12:8

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A consumer group is interested in estimating the proportion of packages of ground beef sold at a particular store that have an a

storchak [24]

Answer: 267.

Step-by-step explanation:

When there is no prior information for the population proportion, then the formula we use to find the sample size to estimate the confidence interval :

$n=0.25(\dfrac{z^*}{E})^2$ , where z* = Critical z-value and E + amrgin of error.

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Since , we have no prior information about p. so we use above formula

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