Montserrat is training for her first race. In her first training week she runs 3 km, and in the second training week she runs 3.5 km. Every week she than the previous one. runs 0.5 km more. A. Find how many kilometres Montserrat runs in her 10th training week.
B. Calculate the total number of kilometres that Montserrat will have run by her 15th training week.

i'm not sure i quite understand, could you provide more information?

8.75

how-to:

first, we need to find what we have to work with.

since i know that we have 7 (years) and 0.8 (inches), we can use these to solve and find the equation!

secondly, what you want to do, is see that we need to know how much growth out of the 0.8 inches he got in only 1 year, instead of 7 years.

let's try to divide.

7 ÷ 0.8 = 8.75

answer: 1400

step-by-step explanation: 20 x 5 = 100 add the zero 1000 8 x 50 = 400 + 1000 = 1400