One dozen= 12
$1.80/12= $0.15 each
Final answer: $0.15
Add 10 to both sides. X is 2. A.
Answer:
D
Step-by-step explanation:
because if you unfold the left corner at the top it just becomes a regular rectangle, 15 by 10. 15 x 2 plus 10 x 2 = 54. and 54 x 1.19 is $64.26 therefor it is D.
I actually did the math this time i promise.
You actually don't need a graph to be able to solve this equation. As long as you are given two data points, you can already solve for the linear equation.
The most common way of writing linear equations is the slope-intercept form:
y = mx + b, where m is the slope and b is the y-intercept.
The slope is the ratio of the change of y to the change of x coordinates. Let's say point 1 is (-1,3) and point 2 is (2,-3). Then,
m = (-3-3)/(2-⁻1) = -2
Next, we use any of the given point to the standard equation along with the m to find b. Let's use (-1,3)
3 = -2(-1)+b
b = 1
Thus, the complete linear equation is y = -2x + 1. The answer is B.
13.88/1.98 = 7.01...
38.99/5.46 = 7.14...
Bag 1 unit rate: $7.01 per 1lbs.
Bag 2 unit rate: $7.14 per 1lbs.
The better bag is the 1.98lbs for $13.88.
