Let use h= hotdogs price and c=chips price
we know that
4h +4c= 17
5h+3c=17.75
t use the elimination method we will multiply the first equation by 5 and the second one by (-4)
20h +20c=85
-20h -12c= -71
8c=14, we will divide by 8 both side and c=1.75, so a bag of potato chips cost $ 1.75
now we will substitute the c in the first equation
4h+7=17 therefore 4h=17-7, 4h=10, h=2.50
a bag of potato chips is 1.75
a hot dog costs 2.50
Answer:
Step-by-step explanation:
(-2,-2),(3,-3) ....distance = sqrt 26 = 5.099
(3,-3),(4,-6)......distance = sqrt 10 = 3.162
(4,-6),(1,-6)......distance = sqrt 9 = 3
(1,-6),(2,-4).....distance = sqrt 5 = 2.236
(-2,-4),(-2,-2)...distance = sqrt 20 = 4.472
perimeter is all the sides added together....... = 17.969 = 17.9 units
** I used a distance formula calculator to calculate the distances between each point....just to let u know how I did this
Answer:
Concept: Mathematical Analysis
- They go in opposite directions
- They start at the same point, let's define that as (0,0) on the ordinary differntiable x-y axis
- Hence Tom can ride 20 units left in one hour and Juanita can ride 20 units right in one hour.
- We want to know the distance they are at the end of 2 hours
- So we set up the equation y= 20(x)
- Let x be the hours and y be the distance
- So 20×2=40 miles
- At the end of 2 hours they will be 40 miles apart assuming constant rate of change and a starting point of (0,0)
