8-12. Write a system of equations for each word problem.
sem or equations for each word problem. Then use matrices to solve the
system.
8. Jamal and Wanda sell vacuums door to door. Jamal earns a base salary on
month, plus $150 for every vacuum he sells. Wanda earns a base salary of $1800
pius ir for every vacuum she sells. How many vacuums do Jamal and Wanda have to sell
before they earn the same amount of money?
a. a. Write a system of equations.
b. Solve the system to find the number of vacuums and amount when they are the same.
Vacuums:
Dollar Amount:

In a sample of 2023 u.s. adults, 373 said franklin roosevelt was the best president since world war ii. two u.s. adults are selected at random from the population of all u.s. adults without replacement. assuming the sample is representative of all u.s. adults, complete parts (a) through (d). (a) find the probability that both adults say franklin roosevelt was the best president since world war ii. the probability that both adults say franklin roosevelt was the best president since world war ii is (round to three decimal places as needed.) (b) find the probability that neither adult says franklin roosevelt was the best president since world war ii. the probability that neither adult says franklin roosevelt was the best president since world war ii is (round to three decimal places as needed.) (c) find the probability that at least one of the two adults says franklin roosevelt was the best president since world war ii. the probability that at least one of the two adults says franklin roosevelt was the best president since world war ii is (round to three decimal places as needed.) (d) which of the events can be considered unusual? explain. select all that apply. the event in part left parenthesis a right parenthesis is unusual because its probability is less than or equal to 0.05. the event in part (b) is unusual because its probability is less than or equal to 0.05. none of these events are unusual. the event in part (c) is unusual because its probability is less than or equal to 0.05.

Graph the system of equations on your graph paper to answer the question. {y=−x+4y=x−2 what is the solution for the system of equations? enter your answer in the boxes.

Which image (a’ b’ c’ d’) of abcd cannot he produced using only reflections ?