you find the blank number by finding the pattern. on number 9 the number increases by 10 every time. you find the mean by adding all the numbers on question 9 and finding the average.

example say its 0 5 10 _ 20 25

you can assume the blank is 15 because the pattern is +5

then you add all of them together which is 75

then you find the average or mean. you find this by dividing it by the numbers you started off with. with this example you divide it by 6 because we started with 6 numbers.

the mean would be 12.5

hope this helped

4 0

2 years ago

Read 2 more answers

Last winter, the ratio of days with snow to day with no snow was 1.18. Write this ratio as a faction in simplest form

Alekssandra [29.7K]

to change any decimal to a fraction, we simply <u>use as many zeros on the denominator as there are decimals and lose the dot</u>.

1.18 has two decimals, so we'll use two zeros at the bottom, and lose the dot.

$\bf 1.\underline{18}\implies \cfrac{118}{1\underline{00}}\implies \stackrel{simplified}{\cfrac{59}{50}}$