Please help I’m not really good at this

A rational number is a number of the form  such that p and q are integers.

Answer : If the temperature decreases by x degrees per day for y days

STEP BY STEP EXPLANATION : Consider a situation: if the temperature decreases by x degrees per day for y days

Temperature decreases by  degrees is denoed by .

Therefore,

Total decrease in temperature in  days is denoted by .

So, this situation could be solved using the product of , where  represents a negative value

25 questions , because they start with 100.  

350-100=250 .  

. 250/10=25

step-by-step explanation:

first take off 100, then what x 10 = 250? that is your answer. (25)

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: