Praxis study guide Math 5003 exam with100% correct solutions 2024

What is the value of the expression below when x = 6? 7x + 3x **** correct answers60 7 × 6 = 42 and 3 × 6 = 18 Then, 42 + 18 = 60 Another approach would be to combine like-terms and then multiply: 7x + 3x = 10x = 10 × 6 = 60 Which of the following has the least value? **** correct answers0.0518 NOTE: This has the least value of the set. The tenths place has a 0 while the other numerals have a 5 in the tenths place. A mathematics teacher determines that the median score for the most recent test was 80 percent. Which of the following is the most accurate interpretation of the result? correct answersHalf the students scored an 80 percent or below. NOTE: Median is the middle number in a data set. It is calculated by arranging the numbers from least to greatest and finding the number in the middle; if there is not one middle number, then the median is the average of the two numbers. For example, in the data set 1, 2, 3, 4 the median is 2.5 because 2.5 is the average of 2 and 3. If the median score is 80, then it can be assumed half the students scored below 80 and half the students scored above 80. During a trip to Mexico, a traveler noticed that 10.00 US dollars were worth 191.42 pesos. Based on this exchange rate, 300.00 pesos are worth approximately how many US dollars? correct answers15.67 Set up a proportion and solve: 10.00 US dollars/191.42 pesos= 300 pesos/191.42 pesos 10.00 US dollars=300 pesosx 3000=191.42 3000=191.42x (divide both sides by 191.42) x≈15.67 US dollars