Answer:
Each hotdog is $3 and each drink is $4.
Step-by-step explanation:
Let h be the number of hotdogs and d the number of drinks,
7h + 5d = 41
4h + 8d = 44
Let's eliminate h. Multiply the first by 4 and the second by 7.
28h + 20d = 164
28h + 56d = 308
Subtrat the first from the second.
36d = 144
d = 4
Substitute back into one of the equations.
7h + 5(4) = 41
7h + 20 = 41
7h = 21
h = 3
Answer:
-16x²
Step-by-step explanation:
-2x*8x= -16x²
Answer:
school
y points (y)=4
x=12
Step-by-step explanation:
y+8=x
3y=x
use elimination method multiply first equation with minus it becomes
-y-8= -x
3y-y-8=x-x
2y-8=0
y=8/2
y=4
so
x=3(4)=12
Answer: r = I/pt
Step-by-step explanation:
Interest divided by the principal × time gives the rate. It's usually expressed as a percentage per year.