Answer:
The family bought 8 hot dogs and 5 hamburguers.
Step-by-step explanation:
We'll call the amount of hamburguers as 'x' and the amount of hot dogs as 'y'. Since the family bought 13 hot dogs and hamburguers we have:
x + y = 13
The family spent a total of 22.5, if each hot dog costs 1.25 and each hamburguer costs 2.5, we have:
2.5*x + 1.25*y = 22.5
We now have two equations and two variables so we can build a system as state bellow:
x + y = 13
2.5*x + 1.25*y = 22.5
From the first equation we have x = 13 - y. We can use this value on the second equation to solve for y:
2.5*(13 - y) + 1.25*y = 22.5
32.5 - 2.5*y + 1.25*y = 22.5
-2.5*y + 1.25*y = 22.5 - 32.5
-1.25*y = -10
y = 10/1.25 = 8
So x = 13 - y = 13 - 8 = 5.
The family bought 8 hot dogs and 5 hamburguers.
Answer:
The answer is C.
Step-by-step explanation:
The answer to your question is 400 hope that helped
let the first angle be a
then
second angle= 68+a
third angle=2a
we know
a+b+c=180 [sum of interior angle of triangle is 180]
a+68+a+2a=180
4a=180-68
a=28
Hence
first angle=28
second angle = 96
third angle =56