Answer:
Step-by-step explanation:
<u>The speed of sound in water:</u>
<u>Time:</u>
- t = 10 min = 10*60 sec = 600 sec
or
- t = 1 hour = 60 min = 60*60 sec = 3600 sec
<u>Distance in 10 min:</u>
- d = s*t
- d = 1500 *600 = 900 000 m = 900 km
<u>Distance in 1 hour:</u>
- d = 1500*3600 = 5 400 000 m = 5400 km
Answer:
b) 35/100
c) 0.35
Step-by-step explanation:
2)
<h2>[][][][][]</h2><h3>[][]</h3>
Answer:
The error she made was that she was adding x and 2.75. She should subtract 2.75 from x.
Another mistake that she made was that she sold each for $7 assuming that she would make a profit of 78, but she should see each necklace for $12.5 so that she could make a profit of $78.
Step-by-step explanation:
The error she made was that she was adding x and 2.75.
She should write the equation as 8 (x - 2.75) = 78; as she spends $2.75 to make a necklace.
By using the correct equation: 8 (x - 2.75) = 78
=> 8x - 22 = 78
=> 8x = 78 + 22
=> 8x = 100
=> x = 100/8
=> x = 12.5
Another mistake that she made was that she sold each for $7 assuming that she would make a profit of 78, but she should see each necklace for $12.5 so that she could make a profit of $78.
Hope this helps you.
Answer:
The zeros are {-2, 3}
Step-by-step explanation:
Set each of these factors equal to zero, in turn, set each factor = to 0 and solve the resulting equation for x:
x + 2 = 0 yields x = -2;
x - 3 = 0 yields x = 3
The zeros are {-2, 3}
