A=1 , c=9
y²/a²-x²/b²=1
c²=a²+b²
b²=c²-a²
b²= 9²-1²
b²=8
y²/1²-x²/8=1
y²- x²/8=1 is the equation of hyperbola.
19. 10 divided by 3 = 5 pounds
20. 5.5 divided by .5 = 11
21. no because 1.25 x 2.5 = 3.12 and she only has $3
22. the restaurant because the restaurant wants to buy 30lb and its $1.25 so 30 x 1.25 = 37.5 and the hotel buys 12 lb for $3 so that is 12 x 3= 36
Answer:
If today is Saturday, then after 70 days, we will be on a Saturday again.
Step-by-step explanation:
Basically, 70 days = 10 weeks
Which means: 1 week = 7 days
We also know that if we are on a Saturday, then after a week, we will be on a Saturday again. Therefore, if we are on a Saturday, after 10 weeks or 70 days, we will be on a Saturday again.
Hoped this helped.
Answer:
$23.42
Step-by-step explanation:
zoey's bill= .5x+5
logan's bill= x
.5x+5+x=60.26
1.5x+5=60.26
1.5x=55.26
x=36.84
.5(36.84)+5= 23.42
For example x^2=25
Without x the expression wouldn't exist, it allows you to calculate unknowns for example in a physics experiment using v=u+at
