<h2>
Answer:</h2>
By Substitution Method
<h2>
Step-by-step explanation:</h2>
Solve by Substitution :
We have two equations
y = 5x ---------------> Equation 1
y = 2x - 15 ------------> Equation 2
y= 2x - 15 and y= 5x
So Put the value of y in Equ 2
(5x) - 2x = -15
3x = -15
Solve equation [1] for the variable x
3x = - 15
x = - 5
Now
y = 5x
x = -5
Use the x value to solve for y
y = 5(-5) = -25
Solution :
{y,x} = {-25,-5}
So y= -25 and x= -5
Answer:
adding $2 to a piggy bank each week
Step-by-step explanation:
just took that checkpoint
<span>2k² = 9 + 3k
⇒ </span><span>2k² - 9 - 3k
= 0
⇒ 2k² - 3k -9 = 0
b² - 4ac = 3² - 4*2*(-9) = 81>0
It has 2 real roots.
</span>
Answer:Two polygons are if they have the same shape but not necessarily the same size
Step-by-step explanation: