Select the correct answer from each drop-down menu. jenna has 3 red balloons and 5 blue balloons. the ratio of the number of red balloons to the number of blue balloons is . she adds 2 red balloons and removes 1 blue balloon. the new ratio of the number of red balloons to the number of blue balloons is .

3 : 5  and 5 : 4

.

Step-by-step explanation:

i did this on my test and i got it right so hope this helps!

hello i am doing good for you that it's summer in your country or state ; )

btw in my country we just have sun and rain as (because i live in the caribbean lol)

also, thx a lot for the points : )

hello,

b) 62.47% of the students are between 14 and 18 years old.

step-by-step explanation:

mean = 15 and standard deviation = 2

student between 14 to 18

formula used z-score

for age 14 , z score

using z-table , p(z> -0.5)=0.3085

for age 18 , z score

using z-table , p(z< 1.5)=0.9332

p(-0.5< z< 1.5)=0.9332-0.3085 = 0.6247

thus, 62.47% of the students are between 14 and 18 years old.

click to let others know, how is it

0.0

0 votes

1

report

read more on -

step-by-step explanation: