Maria completed 3/4 of her workday. create a model that represents what percent of the workday maria has worked.
a. what percent of her workday does she have left?
b. how does your model prove that your answer is correct?

Step-by-step explanation:

a) She has left 25% of her work. 1/4 is 25%.

b) In the model you can see that the total work is divided in 4 equal portions. Each portion represents 1/4 of the workday.

In the second figure you can see in green marked the portions of workday worked, as it is 3/4 it means 3 portions of a total of 4. So, one portion is left, that is marked in yellow color. One portion of a total of 4 portions, it means 1/4.

To express 1/4 in percentage, you need to divide 1 by 4 and the multiply by 100.

The percent of workday left is 25%

, and

for

step-by-step explanation:

we can analyze the pattern at which the terms increase. let us denote , , , so that we can call

note the following:

the pattern: to get the next term value, we just add the next term number (e.g. 1st, 2nd, to the previous term value (term values are the given numbers in the question, 1, 3, 6, 10, 15,

from , to get to , we add

from , to get to , we add

etc.

we need to form a recursive formula, a formula that has the next term as a function of the previous term. so a possible recursive formula can be

, and for

v,jhvljh,b.b; hk; ljujb,vuvccklokll; k,m,km,

step-by-step explanation: