Find 64.9% of 77. Round to the nearest tenth.

Mathematics

2 answers:

Levart [38]3 years ago

7 0

The answer would be 64.9% of 77 is 49.973 then when you round it to the nearest tenth it will give you 50

Answer : 50

eduard3 years ago

6 0

Answer:

64.9% of 77

Step-by-step explanation:

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X+9=3<br><br>please help ASAP

klasskru [66]

Step-by-step explanation:

$x + 9 = 3 \\ \\ x = 9 - 3 \\ \\ x = 6$

4 0

3 years ago

Read 2 more answers

Calculate the average rate of change for the given function, from x = −3 to x = 7.

emmainna [20.7K]

Answer:

The average rate of change for the given function, from x = −3 to x = 7 will be:

Average rate = -5

Step-by-step explanation:

Given the table

x f(x)

-3 50

3 10

7 0

As the interval is from x = -3 to x = 7.

at x₁ = -3, f(x₁) = 50

at x₂ = 7, f(x₂) = 0

Using the formula to determine the average rate of change at which the total cost increases will be:

Average rate = [f(x₂) - f(x₁)] / [ x₂ - x₁]

= [0 - 50] / [7-(-3)]

= [-50] / [7+3]

= -50 / 10

= -5

Therefore, the average rate of change for the given function, from x = −3 to x = 7 will be:

Average rate = -5

6 0

3 years ago

Simplify EXPLAIN your answer.

krek1111 [17]

$\frac{x-5}{ x^{3} +27} + \frac{2}{ x^{2} -9} = \frac{x-5}{ x^{3}+27 } + \frac{2}{(x+3)(x-3)} \\ \\ long-division.. \\ (x^{3} +27)/(x+3) = x^{2} -3x+9 \\ \\ \frac{x-5}{(x+3)( x^{2} -3x+9)} + \frac{2}{(x+3)(x-3)} \\ \\ \frac{x-5}{(x+3)( x^{2} -3x+9)}* \frac{x-3}{x-3} + \frac{2}{(x+3)(x-3)} * \frac{x^{2} -3x+9}{ x^{2} -3x+9} = \frac{(x-5)(x-3)+2( x^{2} -3x+9)}{(x+3)(x-3)( x^{2} -3x+9)}$

$\frac{(x-5)(x-3)+2( x^{2} -3x+9)}{(x+3)(x-3)( x^{2} -3x+9)} = \frac{ x^{2} -8x+15+2x^{2} -6x+18}{(x+3)(x-3)( x^{2} -3x+9)} \\ \\ \frac{ 3x^{2} -14x+33}{(x+3)(x-3)( x^{2} -3x+9)}$