Answer:
1) 80 people 2) 15 weeks
Step-by-step explanation:
(x = the number of people)
500 + 8x = 1140 ← ($500 initially plus $8 per person equals $1140)
8x = 640 ←(subtract the $500 from each side)
x = 80 ←(divide by the $8 per person to get the number of people)
------
(x = the number of weeks)
242 = 62 + 12x ←(The cost of the snake ($242) is equal to her $62 plus $12 she saves every week)
180 = 12x ←(subtract the $62 from both sides)
15 = x ←(divide by the $12 per week)
ANSWER:
680 sq units
MARK ME BRAINLIEST PLEASE
Answer:
1. 5/4
2. 7
Step-by-step explanation:
1) Lets call the width as w
Therefore length would be:
w+4
To find the perimeter you use the formula:
2 (l+w)
Now substitute our values into this formula:
2 (w+4+w)
2( 2w+4)
4w+8
Now make this equal to 13:
4w +8 = 13
4w = 5
w = 5/4
2. In this question we will call length l
Therefore width would be:
l-5
Now we will do the steps we did above:
2 (l+l-5)
2 (2l-5)
4l -10
4l - 10 = 18
4l = 28
l = 7
Answer:
1.50
Step-by-step explanation:
X = hot dog price
Y = hamburger price
5X + 4Y = 16.50
4X + 5Y = 17.25
4(5X + 4Y = 16.50)
20X + 16Y = 66
5(4X + 5y = 17.25)
20X + 25Y = 86.25
Now subtract the equations:
20X + 16Y = 66
20X + 25Y = 86.25
9Y = 20.25
Y = 2.25
Hamburger is $2.25
4X + 5(2.25) = 17.25
4X + 11.25 = 17.25
4X = 6.00
X = 1.50
Hamburgers are $2.25
Hotdogs are $1.50
there are 7 verticles on this triangular prism
