Answer:
- f = 4400/L
- 440 cycles per second
Step-by-step explanation:
When the variation is inverse, the product of values is a constant:
f·L = k = (400)(11) = 4400
f = 4400/L
Then a 10-inch string will vibrate with a frequency of ...
f = 4400/10 = 440 . . . cycles per second
The system of equation to be graphed is the following :
And the solution is the intersection point of the two graphs .
Answer:
5
Step-by-step explanation:
The right angle is 5 so that means the x is 5
Answer:
The ratio of 51:9 in it's simplest form is 17:3.
<em>Greetings from Brasil...</em>
X = 2 liter container
Y = 3 liter container
the total of containers are:
X + Y = 400
the capacity of the containers is
2X + 3Y = 1100
Assembling the equation system
2X + 3Y = 1100
X + Y = 400 x(-2)
2X + 3Y = 1100
<u>-2X -2Y = - 800 </u>
<h3>Y = 300</h3>
X + Y = 400 so
X + 300 = 400
X = 400 - 300
<h3>X = 100</h3>
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<em>BR:</em>
<em>Observe que:</em>
<em>1 vasilha de 2L = 1 × 2 = 2L</em>
<em>2 vasilhas de 2L = 2 × 2 = 4L</em>
<em>3 vasilhas de 2L = 3 × 2 = 6L</em>
<em>X vasilhas de 2L = X × 2 = 2X litros</em>
<em>.....</em>
<em>1 vasilha de 3L = 1 × 3 = 2L</em>
<em>2 vasilhas de 3L = 2 × 3 = 4L</em>
<em>3 vasilhas de 3L = 3 × 3 = 6L</em>
<em>X vasilhas de 3L = X × 3 = 3X litros</em>
<em>Logo 2X + 3Y = 1100</em>
<em>Existem X e Y vasilhas que num total sao 400, logo</em>
<em>X + Y = 400</em>