Answer: a = 15
Step-by-step explanation:
6a + 10 = 3a + 55
Subtract 10 from both sides
6a = 3a + 45
Subtract 3a from both sides
3a = 45
Divide each side by 3
a = 15
Answer:
<em>343 metres per second
</em>
<em>In dry air at 20 °C (68 °F), the speed of sound is 343 metres per second (about 767 mph, 1234 km/h or 1,125 ft/s).</em>
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Answer:
Step-by-step explanation:
We can solve this with the help of Pythagoras theorem.
- => (√50)² = x² + x²
- => √50 x √50 = x² + x²
- => 50 = 2x²
- => 25 = x²
- => x = 5
Hence, the value of x is 5 units.
Answer:
Step-by-step explanation:width is 11 length is 13
So she had one Board and she cut it in two parts. I part is 1 7/8 feet long and the other part is 3 1/2 feet long
