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serg [7]
3 years ago
15

Two lighthouses flash their lights every 20 seconds and 30 seconds respectively. Given that they flash together at 8 p.m, when w

ill they next flash together?
Mathematics
1 answer:
Free_Kalibri [48]3 years ago
6 0
One minute later at 8:01pm. One lighthouse will flash 3 times (at 20, 40 and 60 seconds)...the other will flash twice (at 30 and 60 seconds). So they will both flash 60 seconds later, at 8:01
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Svetlanka [38]

Answer:

4. Yes 5.No 6. No

Step-by-step explanation:

To be short,a linear equation has a coefficient of only 1 degree.

If the degree is over 1 it isn't a linear equation.

4 is the linear equation since it x value 7x has a degree of 1.

5 isn't becuase it's x value has a degree of 5

6 isn't becuase it degree is 4.

7 0
2 years ago
Approximately 32,400 citizens of the country died in 2015. Express the toll in deaths per day
Zigmanuir [339]

There is 90 deaths per day.

First it tells us 32,400 people died in 2015, which also mean that many people died that year.

We have to find the number of people died each month first.

32,400÷12 because 12 is the total number of months in a year.

2700 people died in a month, not we need to find how many people died each day so we divided it by 30 and we get

90 deaths per day.

8 0
3 years ago
Numbers like 10 100 thousand and so on are called what
ohaa [14]
They are called powers of 10.
6 0
2 years ago
Read 2 more answers
if joe and jim combined their hourly pay,they would have $16. jims hourly pay is $1.50 more than joes. find each bous hourly pay
evablogger [386]
Joe : x
jim : y

x+y=16
y=1.50+x

x + 1.50 + x = 16

2x = 14.5

x = 7.25

7.25 + y = 16

y= 8.75

Joe : $7.25
Jim : $8.75
6 0
3 years ago
Pls solve this question​​s 4and 5​​​
Viktor [21]

Answer:

86km/h

80km/h

Step-by-step explanation:

weighted average

bus took 5hrs so van took 3.75 hrs

300/3.75

6 0
2 years ago
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