let x be the number of quarters, and y be the number of dimes.
we know that x + y = 29
then we are also given that
y = 5 + 3x
so we can solve for x and y:
plug y into the first equation:
x + 5 + 3x = 29
4x = 24
x = 6
and
y = 5 + 3*6 = 23
I have 6 quarters and 23 dimes
Answer:
C. Slope is 2
Step-by-step explanation:
Since this equation is written in the y=mx+b equation, 2 would be the slope, because any number that comes before x (AKA "m") is always the slope. For example, if you were trying to find the slope for the equation y=4x+19, 4 would be the slope.
Answer:
A. 49 + 16 (t - 1)
Step-by-step explanation:
Plug in t = 1 to test for the first hour:
Test as many values as you like, but testing t = 5:
You can see that plugging in just a few values confirms the answer.
Ok so x is the original price and we want to solve if the original price was 48 so x=48. When we substitute this into the equation we get 0.75(48)-0.15(0.75x48). When we simplify this expression we get 30.6. The current price is $30.60. Hope this helps.
Answer:
B.) -3
Step-by-step explanation:
