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9966 [12]
3 years ago
7

a red lamp flashes every 10 seconds ,a yellow lamp flashes every 24 seconds and a blue lamp flashes every 30 seconds.How many ti

mes will the three lamps flash at the same time in 10 minutes.​
Mathematics
1 answer:
jeka57 [31]3 years ago
7 0

Answer:

600x

Step-by-step explanation:

10 x 24x 30 - 10x 60x

You might be interested in
QUESTION 9
Mars2501 [29]

Answer:

x = 31

Step-by-step explanation:

Given:

f(x) =

2 {x}^{2}  - 1

g(x) = x + 2

We will first find g(2).

g(2) = 2 + 2 = 4

Next we will find f(g(2)).

f(g(2))= f(4) =

2( {4}^{2} ) - 1 \\  = 2(16) - 1 \\  = 32 - 1 \\  = 31

4 0
1 year ago
LCD to rewrite 5/9 and 1/6 with the same denominator.
Margaret [11]

Answer:

10/18 and 3/18

3 0
3 years ago
Read 2 more answers
What is the distance between parallel lines whose equations are y = 2x + 7 and y = 2x – 3?
malfutka [58]

Answer:

The distance is \sqrt{20} or 2\sqrt{5}.

Step-by-step explanation:

Slope of parallel: 2

Slope of perpendicular: -1/2

Pick a point for y =2x + 7. For example (0,7)

Use the perpendicular slope to get to the other line to find the other point of y=2x-3. Look at the screenshot...I got (4,5).

Distance formula \sqrt{(x_{2}-x_{1} )^{2}+(y_{2} -y_{1})^2   }

Insert (0,7) and (4,5)

\sqrt{(0-4)^{2}+(7-5)^2   } = \sqrt{(-4)^{2}+(2)^2   } = \sqrt{(16)+(4)}  } = \sqrt{20}  = 2\sqrt{5}

6 0
2 years ago
Part of the graph of the function f(x) = (x – 1)(x + 7) is shown below.Which statements about the function are true? Select thre
sertanlavr [38]

The statements about the function that are true are

  • The vertex of the function is at (–3,–16).
  • The graph is increasing on the interval x > –3.
  • The graph is positive only on the intervals where x < –7 and where x > 1.

<h3>How to interpret the graph?</h3>

The equation of the graph is given as

f(x) = (x - 1)(x + 7)

The graph of the function is added as an attachment

On the graph, we have

Vertex = (-3, -16)

This is so because the graph has a minimum point of (-3, -16)

Also, the graph crosses the x-axis at x = 1 and x = -7

This means that the graph is positive at x >1 and x >-7

Because the vertex is a minimum, the graph is increasing at the left of its symmetry i.e. x > -3

Read more about quadratic functions at

brainly.com/question/14933288

#SPJ1

7 0
1 year ago
Bowl A contains three red and two white chips, and bowl B contains four red and three white chips. A chip is drawn at random fro
____ [38]

\Large \text {Answer:}

\large \boxed {\dfrac{23}{40}}

\Large \text {Step-by-step explanation:}

\text{P}_{B}(r) = \text{P}_{A}(r) \cdot \text{P}_{B}(r) + \text{P}_{A}(w) \cdot \text{P}_{B}(r)

\text{P}_{B}(r) = \left (\dfrac{3}{5} \right ) \negthickspace \left(\dfrac{5}{8}\right ) + \left (\dfrac{2}{5} \right ) \negthickspace \left (\dfrac{4}{8} \right )

\text{P}_{B}(r) = \dfrac{23}{40}

4 0
2 years ago
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