All I can say is that your equation is wrong
Answer:
5 divided by 4/9 is 11.25
Step-by-step explanation:
Answer:
<h2>
x= −5−11√13/2, −5+11√13/2</h2>
Solve the equation for x by finding a, b, and c of the quadratic then applying the quadratic formula.
Exact Form:
x= −5−11√13/2, −5+11√13/2
Decimal Form:
x=17.33053201…,
−22.33053201…
Step-by-step explanation:
x(x+5)=387
Simplify
x(x+5).
x^2+5x=387
Subtract 387 from both sides of the equation.
x^2+5x−387=0
Use the quadratic formula to find the solutions.
−b±√b^2−4(ac)/2a
Substitute the values a=1, b=5, and c= −387 into the quadratic formula and solve for x.−5±√5^2−4⋅(1⋅−387)/2⋅1
Simplify.
x=−5±11√13/2
The final answer is the combination of both solutions.
x=−5−11√13/2, −5+11√13/2
The result can be shown in multiple forms.
Exact Form:
x=−5−11√13/2,−5+11√13/2
Decimal Form:
x=17.33053201…,
−22.33053201…
<h2>Hope it is helpful....</h2>
It will take them 80 days to sprint 20 miles.
The method that can be used in solving this type of question involves the use of equating fractions together with their arithmetic operation.
<h3>What is a fraction?</h3>
A fraction usually consists of two terms with a term located in the upper part called the numerator and another term located in the lower part called the denominator.
From the parameters given:
- The track team has a plan to sprint 20 miles this school year.
- If the runners participating in the event sprint 1/4 miles in each day.
Then, the estimate of the number of days it will take them to sprint 20 miles can be computed as:
![\mathbf{= \dfrac{20 \ miles }{\dfrac{1}{4} \ miles/ day}}](https://tex.z-dn.net/?f=%5Cmathbf%7B%3D%20%5Cdfrac%7B20%20%5C%20miles%20%7D%7B%5Cdfrac%7B1%7D%7B4%7D%20%5C%20miles%2F%20day%7D%7D)
![\mathbf{= 20 miles \times \dfrac{4}{1} \ day/miles}](https://tex.z-dn.net/?f=%5Cmathbf%7B%3D%2020%20miles%20%20%5Ctimes%20%5Cdfrac%7B4%7D%7B1%7D%20%5C%20day%2Fmiles%7D)
= 80 days
Learn more about fraction here:
brainly.com/question/78672