Question Progress Homework Progress
8/37 Marks
70%
Two people, A and B, travel from X to Y along different routes.
Their journeys take the same amount of time.
90 km
A's route
x
IY
B's route
60 km
B travels at an average speed of 40 km/h.
What is A's average speed?

check above link.

graphically?   well, you graph them both, the solutions is where they both intersect each other, since there are two solutions, meaning they will meet twice, or namely the linear will run into the quadratic curve twice, and where they meet, those x,y coordinates are the solutions to the system.

answer: the correct answer is -32

step-by-step explanation:

9987

step-by-step explanation:

chemists are often responsible for designing a chemical reaction and analyzing the products obtained from it. one significant part of designing a chemical reaction is determining the amount of each reactant that is needed and the amount of each product that will be produced. in order to do so, chemists use stoichiometry, the quantitative relationships between reactants and products.