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earnstyle [38]
3 years ago
10

If the speed of a car is 20 m s^-1 then what is its speed in km h^-1 ?#no spam​

Mathematics
2 answers:
ivanzaharov [21]3 years ago
8 0
  • Speed in m/s=20m/s

We have to convert it to km/h

\\ \sf\longmapsto 20\times \dfrac{3600}{1000}

\\ \sf\longmapsto 20\times \dfrac{18}{5}

\\ \sf\longmapsto 4times 18

\\ \sf\longmapsto 72km/h

Romashka-Z-Leto [24]3 years ago
4 0

Answer:

hope it helps you

mark as brainlist:))

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A grocery delivery service has 22 members. Each member pays monthly dues of $12.80
slava [35]

Answer:

C

Step-by-step explanation:

If 9 members paid on the first day, this means they did not pay on the third day

The remaining people (everyone but the 9) paid on the third day

Therefore we must subtract to find out how many members paid on the third day

22 - 9 = 13

Each of the 13 members paid $12.80 which means we must multiply

13 × 12.80 = 166.40

In total, the grocery store collected $166.40 on the third day of the month

3 0
3 years ago
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HELP ASAP! A tree is currently 8 feet tall and grows 3 feet per year.
White raven [17]

Answer:

n8yb Who is the person that did this to my son

7 0
4 years ago
A red light flashes every 14 minutes. A blue light flashes every 24 minutes. when will the two lights flash together again if th
natta225 [31]
14×12=168

24×7=168

168÷60=2 hours and 48 minutes

2 hours and 48 minutes+ 8:00AM=10:48AM

Answer: 10:48AM 

4 0
3 years ago
Best explained and correct answer gets brainliest!!
Semmy [17]
The answer is D, here’s why:

You know the slope-intercept form is y=mx+b
mx being the slope and b being the y-intercept.

y=-4/7x + 9 is already in that form.

A is not the answer because the y is supposed to be by itself.
B is not the answer because again, the y is not by itself.
C is not the answer because the y is also not by itself.

In the slope-intercept form, the y must be by itself and the slope (mx) and the y-intercept must be on the other side.

Hope this helps.
8 0
4 years ago
I picked the yellow one, was I correct?
Black_prince [1.1K]

Answer:

yes

Step-by-step explanation:

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