Ask Question
MathematicsMathematics
24 September, 04:42

At Wren Station High School, there are x physics teachers and y chemistry teachers. The total number of chemistry and physics teachers together is 7. The number of chemistry teachers is 1 fewer than three times the number of physics teachers.

+3
Answers (1)
  1. 24 September, 05:00
    0
    By 1st condition, x+y=7 - -eqn. 1

    By 2nd condition, 3x-y=1 - -eqn. 2

    By solving the two equations we get 4x = 8

    Therefore x=2

    Substituting in eqn. 1

    2+y=7

    y=7-2

    Therefore y=5

    x=2, y=5
Know the Answer?
Not Sure About the Answer?
Find an answer to your question 👍 “At Wren Station High School, there are x physics teachers and y chemistry teachers. The total number of chemistry and physics teachers ...” in 📗 Mathematics if the answers seem to be not correct or there’s no answer. Try a smart search to find answers to similar questions.
Search for Other Answers
You Might be Interested in
What is 3x+x+6=32? in the simplest form
Answers (1)
You are considering two securities. Security A has a historical average annual return of 7% and a standard deviation of 3%. Security B has a historical average annual return of 7% and a standard deviation of 9%.
Answers (1)
If a sphere has a radius of 2 cm, what is the approximate surface area of the sphere? A. 12.1 cm B. 33.5 cm C. 50.3 cm D. 100.5 cm
Answers (2)
Vonna scored 18 goals at soccer practice. Her ratio of goals to misses was 3:7. How many times did she miss?
Answers (2)
1/2 + 9/10 + 4/5 A. 2 1/5 B. 2 2/10 C. 14/17 D. 22/10
Answers (2)
New Questions in Mathematics
The data show the last 12 weeks of a familys grocery bill: $60, $60, $60, $80, $120, $120, $150, $120, $300, $200, $100, $90. Which measure of center best represents the data? A. The mode of $60 B. The median of $110 C. The mode of $120 D.
Answers (1)
Kyle is renting a jet ski for the day. Below are his two options. Powersports Plus: $30 an hour plus a non-refundable deposit of $50. Sun & Surf: $20 an hour plus a non-refundable deposit of $80. Write an equation that models this situation.
Answers (2)
A recipe requires 3/4 cup of nuts for 1 cake. Enter the maximum number of cales that can be made using 7 1/2 cups of
Answers (1)
Is (1, - 2) a solution of y> - 6x - 3? Choose 1 answer: Yes No
Answers (1)
O quadrado de 5 o dobro do quadrado de 5 o cubo de 5 o tripolo de cubo de 5
Answers (1)
Home » Mathematics » At Wren Station High School, there are x physics teachers and y chemistry teachers. The total number of chemistry and physics teachers together is 7. The number of chemistry teachers is 1 fewer than three times the number of physics teachers.
Sign Up Forgot Password?