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
Alja [10]
3 years ago
12

Alfonso and Lucas are 238 miles apart, traveling towards each other. If Lucas travels 21 mph and Alfonso travels 13 mph how long

until they meet?
Mathematics
1 answer:
Alex3 years ago
7 0

Lucas equation for his location is x(t) = 13t.

Alfonso's equation is x(t) = 238 - 21t

If you equate these, you get:


13t = 238 - 21t =>

34t = 238

t = 7


So after seven hours they meet.

You might be interested in
6(x-2=4(x+3) what does x equal
Delicious77 [7]

Hey mate here is your answer.

➛ 6(x-2) = 4(x+3)

➛ 6x-12 = 4x + 12

➛ 6x - 4x = 12 + 12

➛ 2x = 24

➛ x = \frac{24}{2}

⛬ x = 12

4 0
4 years ago
Ezekiel bought a 18 ounce box of chocolate for $6.50. What was the cost per ounce? in a explanation order
vivado [14]

Answer:0.36

Step-by-step explanation:

You divide 18 by 6.50, that give you the cost per ounce

7 0
3 years ago
Sin^2(x/2)=sin^2x <br> Find the value of x
Veronika [31]
\sin^2\dfrac x2=\sin^2x
\dfrac{1-\cos x}2=1-\cos^2x
1-\cos x=2-2\cos^2x
2\cos^2x-\cos x-1=0
(2\cos x+1)(\cos x-1)=0
\implies\begin{cases}2\cos x+1=0\\\cos x-1=0\end{cases}\implies\begin{cases}\cos x=-\frac12\\\cos x=1\end{cases}

The first case occurs in 0\le x for x=\dfrac{2\pi}3 and x=\dfrac{4\pi}3. Extending the domain to account for all real x, we have this happening for x=\dfrac{2\pi}3+2n\pi and \dfrac{4\pi}3+2n\pi, where n\in\mathbb Z.

The second case occurs in 0\le x when x=0, and extending to all reals we have x=2n\pi for n\in\mathbb Z, i.e. any even multiple of \pi.
6 0
3 years ago
PLEASE PLEEASE HELP I PROMISE I WILL GIVE BRAINLIIEST!!!!
Nadusha1986 [10]

Answer:

76, the middle one

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
1. Compare the strengths and weaknesses of the horizontal and vertical methods for adding and subtracting polynomials. Include c
mrs_skeptik [129]
1.Each method works differently the angles inside them is what matters.

2. <span> Manipulating algebra tiles can help people solve linear equations

3.</span><span>Distribute each term of the first polynomial to every term of the second polynomial. Remember that when you multiply two terms together you must multiply the coefficient (numbers) and add the exponents. But with Integers you multiply two integers with different signs

4.So you know how </span>
A monomial is a number, a variable or a product of a number and a variable.


<span>multiply each term in one polynomial by each term in the other <span>polynomial

Examples:
3x2(4x2 – 5x + 7)&#10; –6xy(4x2 – 5xy – 2y2)&#10;(3x – 4y)(5x – 2y)&#10;(4x – 5)(2x2 + 3x – 6)</span></span>
7 0
3 years ago
Other questions:
  • Order the numbers from least to greatest.
    9·1 answer
  • I am a graph that records each piece of data above a number line
    11·2 answers
  • Find the sum or product of 6*89
    10·1 answer
  • PLZZZZZ help A car's gas tank that is 40% full contains 12 gallons of gas. Show the math you used to find the maximum capacity o
    14·1 answer
  • Y less than x minus 4
    11·1 answer
  • bella pays 7 payments of $5 each to a game store.She returns one game and recieves $20 back.what is the change to the amount of
    9·1 answer
  • I need help fast thanks
    5·1 answer
  • Please help, and i will mark you BRAINLIEST
    8·1 answer
  • SOMEONE PLEASE HELP ME ASAP THIS IS ALMOST DUE ILL MARK BRAINLIEST!!!!
    9·1 answer
  • The Eiffel Tower in Paris, France is 1063 feet tall. If you took an elevator 3/4 the way up the tower, how far from the ground w
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!