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3 years ago

11

A red string of holiday lights blinks once every 3 seconds, while a string of blue lights blinks once every 4 seconds. How many

lights blinks at the same time in one minute?

1 answer:

erastova [34]3 years ago

8 0

There is a total of 5 times

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The ratio of girls to boys who participated in the quiz bowl was 7:5. There were 42 girls in the competition. How many boys part

Zinaida [17]

The way i do it, is sort of like this :

Is 7 a factor of 42?
Is 5 a factor of 42?

7 is a factor of 42.
It must be in multiples of 7!

Therefore, we have 5 on the other side, which makes it 5 x 7 = 35

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3 years ago

Please help ASAP! What is the Value of X?

Nataly [62]

Answer:

4x+7=5x-20
7+20=5x-4x
x=27°

hope it helps.

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omeli [17]

Answer:

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Step-by-step explanation:

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3 years ago

Read 2 more answers

What is the average rate of change of the function on the interval from x = 0 to x = 5?

crimeas [40]

Answer:

Average rate of change $=\frac{1}{8}$

Step-by-step explanation:

Given interval are from $x=0\ to\ x=5$

Also, $=\frac{1}{2^3}x=\frac{1}{8}x$

Average rate of change $=\frac{f(b)-f(a)}{b-a}\ for\ given\ interval\ [a,b]$

Here given intervals are $a=0\ and\ b=5$

Plugging these value in formula, we get.

Average rate of change $=\frac{\frac{1}{8}(5)-\frac{1}{8}(0)}{5-0}\\\\=\frac{\frac{1}{8}(5)-0}{5-0}\\ \\=\frac{\frac{1}{8}(5)}{5}\\\\=\frac{1}{8}$

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3 years ago