30% of what number is 72
95% of what number is 57?
85% of what number is 102

1) 240 2) 60 3) 120

Step-by-step explanation:

Take the inverses of the precentages

ex: 10%=.10 => 900*.10= 90 => (1/.10)=10 => (1/.10)*90=900

1- (1/.3)*72= 240

2- (1/.95)*57= 60

3- (1/.85)*102= 120

step-by-step explanation:

let

we know that

the y-intercept is the y-coordinate of the point when the value of x is equal to zero

so

the y-coordinate of the point a is the y-intercept

the answer part a) is

the value of y-intercept is

part b) find the slope m

we know that

the value of the slope is equal to

substitute the values

therefore

the answer part b) is

the value of the slope is equal to

the general answer is

the slope is

the value of y-intercept is

15% chance.

step-by-step explanation:

3/10 times, the 5 year old will get a tablet. 5/10 times, the 13 yer old will get a tablet. multiply both fractions to get 15/100 times, both would have a tablet.