You should start with an equation.
![245 = 125 + 15x](https://tex.z-dn.net/?f=245%20%3D%20125%20%2B%2015x)
The 'x' represents the week.
so now, we have to subtract 125 from the total amount which is 245.
![245 - 125 = 120](https://tex.z-dn.net/?f=245%20-%20125%20%3D%20120)
now we have
![120 = 15x](https://tex.z-dn.net/?f=120%20%3D%2015x)
to find 'x', we must divide 15 on each side
![\frac{120}{15} = \frac{15x}{15}](https://tex.z-dn.net/?f=%20%5Cfrac%7B120%7D%7B15%7D%20%20%3D%20%20%5Cfrac%7B15x%7D%7B15%7D%20)
we are now left with
![8 = x](https://tex.z-dn.net/?f=8%20%3D%20x)
that means Sierra will have 8 weeks until she has enough money to buy the bike
Answer:
y = 1/5x - 7/5
Step-by-step explanation:
y = 1/5x + b
-1 = 1/5(2) + b
-1 = 2/5 + b
-7/5 = b
Answer:
n = -36
Step-by-step explanation:
The answer is -36 because:
1) We first have to subtract -24 and 12 to find n
-24 - 12 = -36
This is because whenever there are two negative signs, multiply it.
Negative x Negative = Positive
We have to do, 24 + 12 which is 36. Finally, we just put the greater number's sign to the answer. 24 is greater than 12, therefore, we put a negative sign before 36.
Hope this helps!
I would not buy the Iphone 7 because they did not take out the correct percent off. 25% would be .25, so .25 x 675=168.75 should be taken off the price to make it sale price $506.25.
The store had the computer take only 20% off of the price because:
675-540=135 for the amount they took off.
% x 675=135
%=135/675
%=.2 or 20%