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Jlenok [28]
3 years ago
12

the red line and the blue line trains just arrived at station when will they next arrive at the station at the same time

Mathematics
1 answer:
Whitepunk [10]3 years ago
4 0
They will meet back up in 40 minutes because 8x5=40 and 10x4=40 which 40 is both a multple of 8 and 10 so you're welcome
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Please help me with this math problem. I have to Use the quadratic formula to solve each equation.
Ierofanga [76]

You have to solve the given expression for q:

2q^2-8=3q

This expression has a quadratic term, which means that it is a quadratic equation. To find the value or values of q, you have to use the quadratic equation, using "q" as the variable instead of "x"

q=\frac{-b\pm\sqrt{b^2-4ac}}{2a}

Where

a is the coefficient of the quadratic term

b is the coefficient of the q term

c is the constant

- First, zero the equation by passing 3q to the left side of the equal sign:

\begin{gathered} 2q^2-8=3q \\ 2q^2-8-3q=3q-3q \\ 2q^2-3q-8=0 \end{gathered}

For this equation the coefficients are:

a= 2

b= -3

c= -8

Replace them in the formula and solve:

\begin{gathered} q=\frac{-b\pm\sqrt{b^2-4ac}}{2a} \\ q=\frac{-(-3)\pm\sqrt{(-3)^2-4*2*(-8)}}{2*2} \\ q=\frac{3\pm\sqrt{9+64}}{4} \\ q=\frac{3\pm\sqrt{73}}{4} \end{gathered}

Next, to determine each possible value of q, you have to solve the sum and difference separately:

Sum

\begin{gathered} q=\frac{3+\sqrt{73}}{4} \\ q=2.886\cong2.9 \end{gathered}

Difference

\begin{gathered} q=\frac{3-\sqrt{73}}{4} \\ q=-1.386\cong-1.4 \end{gathered}

The possible solutions for the given equation are q=2.9 and q=-1.4

4 0
1 year ago
What is the LCM of 36 and 60
GrogVix [38]
It is LCM=180 I'm pretty sure

4 0
3 years ago
Four speed skaters, Marco
dmitriy555 [2]

Answer:

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Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Point M belongs to AN , point N belongs to BM , AB = 18 in and AM : MN : NB = 1:2:3. Find MN.
yulyashka [42]

MN = 6 in

add the parts of the ratio, 1 + 2 + 3 = 6

divide AB by 6 to find 1 part of the ratio

\frac{18}{6} = 3 ← 1 part

AM = 3 in ← 1 part

MN = 2 × 3 = 6 in ← 2 parts

NB = 3 × 3 = 9 in ← 3 parts

and 3 + 6 + 9 = 18 in = AB


3 0
3 years ago
What is the quantity proportional to 18/6
mario62 [17]

Answer:

18/6=3

Step-by-step explanation:

18/6÷3=6/2

6/2=3

7 0
3 years ago
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