Terms : 13x, 9, 5y, 8, 7k
coefficients: 13,5,7
constants: 13,9,5,8,7
variables: x,y,k
Answer:
x=20
Step-by-step explanation:
Because all angles of a triangle add up to 180, by adding all the values that your given and setting it equal to 180, you get the value of x.
3x+2x+20+4x-20=180
9x=180
x=20
Answer:
4x - 8
Step-by-step explanation:
You can’t combine any like terms what is this
3x + 2y = 48.97....multiply by 5
5x + 3y = 76.45 ...multiply by -3
--------------------
15x + 10y = 244.85 (result of multiplying by 5)
-15x - 9y = - 229.35 (result of multiplying by -3)
-------------------add
y = 15.50 <=== cost of a soccer ball
shin guards cost : 5.99
Answer:
7.04
Step-by-step explanation: