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Talja [164]
3 years ago
6

On a string of red and blue lights, the red lights blink everyb3 seconds, and the blue lights blink every 5 seconds. How many ti

mes will they blink at the same time in one minute?
Mathematics
1 answer:
yuradex [85]3 years ago
5 0
When will they blink together?
what is the smallest number they both mutiply to
3*5=15
so every 15 seconds
so at 15, 30, 45, 60 seconds
so 4 times if you count the time exactly at 1 minute
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a wildlife photographer spent 5 minutes taking pictures of a bison at a park. when the bison then decided she didn't want her ph
ZanzabumX [31]

The percent of time the photographer spent negotiating with the bison greater than the time he spent taking pictures is 500%

<h3>Percentage</h3>

  • Time spent taking pictures = 5 minutes
  • Time spent negotiating = 30 minutes

Percentage of time negotiating greater than taking pictures = (difference in time) / time to take pictures × 100

= (30 - 5) / 5 × 100

= 25/5 × 100

= 5 × 100

= 500%

Learn more about percentage:

brainly.com/question/843074

#SPJ1

4 0
2 years ago
Andrew can run the forty yard dash in 1/2 the time that Brett can. If the sum of the two boys' times is 16.2 seconds, how many s
Zigmanuir [339]
10.8 seconds for brett i’m pretty sure
6 0
2 years ago
Can you guy's help me quick!
nadya68 [22]

Answer:

480,700 sets (first choice)

Step-by-step explanation:

If all 25 questions are different,

When order of selection counts:

P(25,7)

= 25!/(25-7)!

= 15511210043330985984000000/6402373705728000

= 2422728000

When order of selection does not count count:

C(25,7)

=25!/(7!*(25-7)!)

=15511210043330985984000000/(6402373705728000*5040)

= 480,700

Hope this helps, have a nice day.

6 0
3 years ago
Ill mark you brainlist plz help if you put something random I will report you! I
emmainna [20.7K]

Answer:

4

Because the second number (y) is 4 on the grid. It rises to 4.

7 0
3 years ago
From the chapter Rational Numbers​some body please answer fast
Alexxx [7]

Answer:

- \frac{3}{7}

Step-by-step explanation:

Given

- \frac{42}{98} ← divide numerator/ denominator by 14 )

= - \frac{3}{7}

7 0
2 years ago
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