y = m
x + b
.
y = 6
x − 7
Hope this helped!
Answer:
6.7% decrease each day
Step-by-step explanation:
Half life: 10 days
Fraction = 0.5^(t/10)
Where t is the no. of days
Per day: t = 1
0.5^(1/10)
0.9330329815 × 100 = 93.30329917
Decrease of: 100 - 93.30329917
= 6.696700846% each day
Hello there!
The question asks us to solve using the substitution method. The equations given are:


We are given a value for y, which is x-8. Substituting
into the first equation of the system of equation gives us:


Use the distributive property to help simplify and solve for x

Combine like terms

Add 24 to both sides


Finally, divide both sides by 5

Now, let's use
in the equation
to find the value of y



Now, we have the values x=5 and y=-3. Putting these values into an ordered pair gives us the answer (5,-3), which is the last answer choice.
Let me know if you need any clarifications, thanks!
~ Padoru