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Over [174]
4 years ago
5

A firework exploded 1,360 meters away and the sound of the firework took 4 seconds to reach you. At what speed did the sound tra

vel? m/s
Mathematics
1 answer:
GrogVix [38]4 years ago
3 0
Total speed= 1360/4=340m/s
hope it help you....
You might be interested in
A chocolate manufacturer sells a 320g ar of chocolate for 50p. The size of the bar is reduced by 20%, and the price to 42p.
Contact [7]

Answer:

  less value

Step-by-step explanation:

To deterimine if value was improved or not, we need to compare the price reduction to the size reduction.

__

The reduction in price is ...

  ((new value)/(old value) -1) × 100%

  = (42/50 -1) × 100% = -16%

The size reduction of 20% is more than the price reduction of 16%, so the chocolate bar is <em>less value</em>.

_____

<em>Additional comment</em>

Compared to the original value, the new price to chocolate ratio is ...

  0.84/0.80 = 1.05

Effectively, the price was raised by 5%.

6 0
2 years ago
ASAP help and explain plz
Anna11 [10]
Since x is across from 148, and arcs opposite inscribed angles = 2×angle, then we can find x first.
We could set the 2 angles equal to 180 or their arcs equal to 360.
360 - (2×148) = x-arc
x-arc = 360 - 296 = 64
x = x-arc ÷2 = 64/2 = 32
Now for angle A we plug in for x:
A = 2x+1 = 2(32)+1 = 65°
6 0
3 years ago
Write an inequality and solve.
svlad2 [7]

Answer:

25 + 15n ≥ 150

Step-by-step explanation:

The term at least mean the amount saved is greater than or equal to 150

Let the number of weeks he intends to save be n

Amount saved after n weeks without the plan is:

15n

Add plan amount

= 25 + 15n

Add inequality

25 + 15n ≥ 150

5 0
3 years ago
Help please I’m Confused He and she are competing in a 42 mile race. He has already finished 18 miles of the race and is traveli
USPshnik [31]
Hector : 42-18=24
H = 12(2) because 12 x 2 = 24

24divide16=1.5
W=16(1.5) because 16 x 1.5 = 24
3 0
3 years ago
Paul get 5$ week for doing his chores he is saving his money to buy a skateboard that cost 85$ he has already saved 5$
TiliK225 [7]

Answer:

16 weeks

Step-by-step explanation:

85 divided by 5 is 17. Take away one week for the $5 he already has. So you get 16 weeks.

Hope this helps you!

6 0
3 years ago
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