All categories

3 years ago

What's a real-world problem that can be modeled by the equation 1.25 = 0.75x + 50 ?

1 answer:

4 0

Well, you could say that you want to buy something for $1.25. Like a game or a toy or something! So you need to have $1.25 in order to get this item. You have $50 in your savings account you make 0.75 an hour. And then x would represent the number of hours you have to work. It doesn't really make sense since if you have 50$ in your savings account then you would be able to buy it automatically but, for the sake of this let's just pretend! I'm pretty sure this example will work! Hope it helped!

You might be interested in

I don’t know if the 3 is right but can you help me?

sattari [20]

Answer:

I think it is 3:45 because when you go 2 hours back from 6.25 you get 4.25.Then 40 minutes back is 3.45

7 0

3 years ago

The population of a species is modeled by the equation p(t)=-t^4+72t^2+225, where t is the number of years. find the approximate

Shtirlitz [24]

Answer:

The approximate number of years until the species is extinct will be 9 years

Step-by-step explanation:

We are given

The population of a species is modeled by the equation

$p(t)=-t^4+72t^2+225$

where

t is the number of years

we have to find time when species extinct

we know that any species will be extinct only if population of that species becomes 0

so, we can set P(t)=0

and then we can solve for t

$p(t)=-t^4+72t^2+225=0$

we can factor it

$(t^2+3)(t^2-75)=0$

$(t^2+3)=0$

we get t value as imaginary for this equation

$(t^2-75)=0$

$t=\sqrt{75}$

$t=8.660$

So,

the approximate number of years until the species is extinct will be 9 years

8 0

4 years ago

In chemistry class 18 liters of 30% alcohol solution must be mixed with 20% solution to get 14% solution how many liters of 20%

Virty [35]

30% is needed because i believe it is i am really trying hope u get it right <span />

4 0

3 years ago

PLEASE HELP FIND THE SLOPE OF THE LINE PLEASEEE!!!!!

pochemuha

2/1 the slope = rise/run

3 0

3 years ago

Mary says the oen for her horse is a acutr right angle is that true

Eduardwww [97]

No its not possible. An acute triangle has three angles less than 90 degrees. A right triangle has exactly one angle that is 90 degrees. Its not possible for both cases to happen at the same time.

8 0

4 years ago