1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
sattari [20]
3 years ago
6

A train is going 44 mph and another train going the same way that leaves 1 hour after is going 55mph when is the second train go

ing to overtake the first one
Mathematics
1 answer:
spin [16.1K]3 years ago
3 0
An hour ahead of it because it left earlier then the other retrain
You might be interested in
Help !!!!!!!!!!!!!!!!!!!!!
tankabanditka [31]

Answer:

I think the equation that best represent the relationship between r and s is A. s=1/6r

3 0
3 years ago
Arthur has decided to start saving for a new computer. His money is currently in a piggy bank at home, modeled by the function s
Leya [2.2K]

Two or more independent functions (say f(x) and g(x)) can be combined to generate a new function (say g(x)) using any of the following approach.

h(x) = f(x) + g(x)         h(x) = f(x) - g(x)

h(x) = \frac{f(x)}{g(x)}                   h(x) = f(g(x))

And many more.

The approach or formula to use depends on the question.

In this case, the combined function is:

f(x) = 75+ 10x

The savings function is given as

s(x) = 85

The allowance function is given as:

a(x) = 10(x - 1)

The new function that combined his savings and his allowances is calculated as:

f(x) = s(x) + a(x)

Substitute values for s(x) and a(x)

f(x) = 85 + 10(x - 1)

Open bracket

f(x) = 85 + 10x - 10

Collect like terms

f(x) = 85  - 10+ 10x

f(x) = 75+ 10x

Read more about functions at:

brainly.com/question/15458447

4 0
2 years ago
Read 2 more answers
The sales tax on a $350.00 computer is $22.75. Find the sales tax rate.
svetoff [14.1K]

The sales tax rate is 6.5%


6 0
2 years ago
What’s 53/3 simplified
aleksley [76]

Answer:

<em>53/3 simplified is 17 2/3</em>

3 0
3 years ago
Read 2 more answers
For the function y=x^5+1x^3-30x, find all real zeros.
siniylev [52]

Answer:

The real zeroes are -√5 , 0 , √5

Step-by-step explanation:

* Lets explain how to solve the problem

- The function is y = x^5 + x³ - 30x

- Zeros of any equation is the values of x when y = 0

- To find the zeroes of the function equate y by zero

∴ x^5 + x³ - 30x = 0

- To solve this equation factorize it

∵ x^5 + x³ - 30x = 0

- There is a common factor x in all the terms of the equation

- Take x as a common factor from each term and divide the terms by x

∴ x(x^5/x + x³/x - 30x/x) = 0

∴ x(x^4 + x² - 30) = 0

- Equate x by 0 and (x^4 + x² - 30) by 0

∴ x = 0

∴ (x^4 + x² - 30) = 0

* Now lets factorize (x^4 + x² - 30)

- Let <em>x² = h</em> and <em>x^4 = h²</em> and replace x by h in the equation

∴ (x^4 + x² - 30) = (h² + h - 30)

∵ (x^4 + x² - 30) = 0

∴ (h² + h - 30) = 0

- Factorize the trinomial into two brackets

- In trinomial h² + h - 30, the last term is negative then the brackets

 have different signs (     +     )(     -     )

∵ h² = h × h ⇒ the 1st terms in the two brackets

∵ 30 = 5 × 6 ⇒ the second terms of the brackets

∵ h × 6 = 6h

∵ h × 5 = 5h

∵ 6h - 5h = h ⇒ the middle term in the trinomial, then 6 will be with

  (+ ve) and 5 will be with (- ve)

∴ h² + h - 30 = (h + 6)(h - 5)

- Lets find the values of h

∵ h² + h - 30 = 0

∴ (h + 6)(h - 5) = 0

∵ h + 6 = 0 ⇒ subtract 6 from both sides

∴ h = -6

∵ h - 5 = 0 ⇒ add 5 to both sides

∴ h = 5

* Lets replace h by x

∵ <em>h = x²</em>

∴ x² = -6 and x² = 5

∵ x² = -6 has no value (<em>no square root for negative values</em>)

∵ x² = 5 ⇒ take √ for both sides

∴ x = ± √5

- There are three values of x ⇒ x = 0 , x = √5 , x = -√5

∴ The real zeroes are -√5 , 0 , √5

4 0
3 years ago
Other questions:
  • HELP PLEASE 55 POINTS<br><br><br> x = 16 18 34
    6·2 answers
  • I’ll give brainliest:)
    14·2 answers
  • What is the supplement of angle which measures 25°
    14·1 answer
  • The volume of a cube is 400 m3.
    13·1 answer
  • Please answer this!! The school's enrollment dropped 12.8% from last year. This year's enrollment was 252 students. What was las
    5·1 answer
  • Equivalent fraction for 6 fifths
    5·2 answers
  • Find the constant of proportionality for b) y=2x
    6·1 answer
  • Find the mass of a book that has a weight of 14.7 newtons
    5·1 answer
  • Whats $2.65 round to the nearest tenth
    5·1 answer
  • ......................answer
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!