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allochka39001 [22]
3 years ago
14

on a string of red and blue lights the red light light blink every 3 seconds and thhe blue lights blink every 5 seconds how many

times will they at the same time in one minute
Mathematics
2 answers:
Furkat [3]3 years ago
8 0
4 times. at 15,30,45, and 60 seconds
serious [3.7K]3 years ago
4 0

Answer:

the answer is four times

Step-by-step explanation:

at 15 seconds

at 30 seconds

at 45 seconds

at 60 seconds

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Eric and his two sister shared amount of money in ratio2:7 respectively. If Eric had 300.00 and the remaining amount shared equa
photoshop1234 [79]

Answer:

The equal amount is 525 .

Step-by-step explanation:

Given that,

Eric and his two sister shared amount of money in ratio2:7 respectively.

Amount with Eric = 300

It means,

2x = 300

x = 150

So,

7x = 7(150)

= 1050

As the remaining amount shared equally among the sister. So, the equal amount is 525 .

7 0
2 years ago
Use the diagram. AB is a diameter, and AB is perpendicular to CD. The figure is not drawn to scale.
Westkost [7]

Answer:

The measure of arc BD is 147°

Step-by-step explanation:

we know that

If segment AB is perpendicular to segment CD

then

The measure of the inner angle CPA is a right angle (90 degrees)

Remember that

The measure of the inner angle is the semi-sum of the arcs comprising it and its opposite.

so

m∠CPA=(1/2)[arc AC+arc BD]

substitute the given values

90°=(1/2)[33°+arc BD]

180°=33°+arc BD

arc BD=180°-33°=147°

7 0
2 years ago
There are 12 white shirts, 8 blue shirts, and 6 red shirts on a rack. Which colors have a ratio of 1:2?
Rus_ich [418]

Answer:

12 white shirts , 6 red shirts

Step-by-step explanation:

5 0
2 years ago
Whats the difference of the two expression? (3/7x+9)-(2/7x-3)
Aleksandr-060686 [28]
\left(\frac{3}{7}x+9\right)-\left(\frac{2}{7}x-3\right)\\\\=\frac{3}{7}x+9-\frac{2}{7}x-(-3)\\\\=\frac{3}{7}x+9-\frac{2}{7}x+3\\\\=(\frac{3}{7}x-\frac{2}{7}x)+(9+3)\\\\=\frac{3-2}{7}x+12\\\\=\boxed{\frac{1}{7}x+12}
4 0
3 years ago
Fiona and her friends went to a smoothie shop. They ordered three strawberry smoothies and two protein shakes for a total of $24
IRINA_888 [86]
I believe the answer is 5.15 .
4 0
3 years ago
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