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mr Goodwill [35]
3 years ago
13

Red lights flash every 6 seconds. Blue lights flash every 8 seconds. The store owner turns on the lights. After how many seconds

will the lights flash at the same time for the first time
Mathematics
1 answer:
Morgarella [4.7K]3 years ago
8 0
In 24 seconds they will flash at the same time for the first time
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11) Endpoint: (0,4), midpoint (-10, -3)<br> Find the endpoint?
earnstyle [38]

Answer:

(-20,-10)

Step-by-step explanation:

( - 10 \:  \:  - 3) = ( \frac{0 + x}{2}  \:  \:  \frac{4 + y}{2} )

Solve for.x coordinate

- 10 =  \frac{0 + x}{2}  \\  - 20 = 0 + x \\ x =  - 20

solve for y coordinate

- 3 =  \frac{4 + y}{2}  \\  - 6 = 4 + y \\  - 10 = y

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What expression is equivalent to -2x + 7
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I think that’s the answer

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Can someone please help me with these questions?
Dmitrij [34]

Expanded form is writing out everything and no simplifying.

A. c times c

B. t times t times t times t  

C. 2 times x times x times x  

D. 4 times 4 times h times h

E. 2 times 2 times 2 times l times l times l

F. a times a times a + 7 times b times b

Hope this helps :)

8 0
3 years ago
The cost of 4 belts and 5 ties is $247. Each time costs 3 times as much as a belt. What us the total cost of 1 belt and 1 tie
Makovka662 [10]

Answer:

The total cost of 1 belt and 1 tie is $13 and $39 respectively.

Step-by-step explanation:

Given that,

The cost of 4 belts and 5 ties is $247.

Each tie costs 3 times as much as a belt.

Let the cost of a belt is x and that of a tie is y.

ATQ,

4x + 5y = 247 ...(1)

y = 3x ....(2)

Put the value of y from equation (2) in equation (1)

4x + 5(3x) = 247

4x + 15x = 247

19x = 247

x = 13

Put the value in equation (2)

y = 3x

= 3(13)

= 39

So, the total cost of 1 belt and 1 tie is $13 and $39 respectively.

5 0
3 years ago
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