7. Lola spent $600 buying makeup and perfume at an online store that charges $15 for each lipstick and $40 for each perfume. She purchased a total of 10 perfumes and lipsticks combined.
Write a system of equations that represents this situation. *
(5 puntos)

ratio is 2 : 9

the answer is three

13.5 : 3

c = 0.429t

step-by-step explanation:

the constant rate at which carlos harvests cassava is 35 minutes per 15 cassavas 15/35 = 0.429 cassava per minute

therefore, an equation that models the number of cassava (c) that harvest carlos in a time (t) is the following:

where t is the time in minutes.

this means that when 35 minutes have elapsed 15 cassava have been harvested, at 70 minutes 30 cassava have been harvested and so on.