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amazinga
02.12.2020 •
Mathematics
Graded Assignment
Unit Test, Part 2: Systems of Equations
Answer the questions below. When you are finished, submit this assignment to your teacher by the due date for full credit.
Total score: of 15 points
(Score for Question 1: ___ of 5 points)
Delaney would like to make a 5 lb nut mixture that is 60% peanuts and 40% almonds. She has several pounds of peanuts and several pounds of a mixture that is 20% peanuts and 80% almonds. Let p represent the number of pounds of peanuts needed to make the new mixture, and let m represent the number of pounds of the 80% almond-20% peanut mixture.
What is the system that models this situation?
Which of the following is a solution to the system: 2 lb peanuts and 3 lb mixture; 2.5 lb peanuts and 2.5 lb mixture; 4 lb peanuts and 1 lb mixture? Show your work.
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Ответ:
d
Step-by-step explanation:
Ответ:
240 walk, 100 are dropped off and 460 take the bus.
Step-by-step explanation:
first, find the bus percentage by subtracting 30 and 12.5 from 100 (which is 57.5%)
now put these percentages in decimal form: 30 -> .30 and 12.5 -> .125 and 57.5 -> .575 and multiply them (separately to 800)
.30 x 800 = 240
.125 x 800 =100
.575 x 800 = 460