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3 years ago

In a 30 pack of Skittles, 30% are red. How many Skittles are red?

Mathematics

2 answers:

atroni [7]3 years ago

8 0

Answer: 9 skittles are red

madam [21]3 years ago

3 0

Answer:

Step-by-step explanation:

30/100×30

=3/10×30

=3/1×3

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EastWind [94]

Answer:

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3 years ago

Diego thinks that x = 3 is a solution to the equation x2 = 16. Do you agree? Explain or show your reasoning.

dlinn [17]

Answer:

Step-by-step explanation:

f(x) = x²

f(3) = 3²

= 3 × 3

= 9 Not 16

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√16 = 4

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3 years ago

Plzzzz help I REALLY NEED HELP

VashaNatasha [74]

Answer:

1/9

Step-by-step explanation:

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3 years ago

Read 2 more answers

by about how much will f(x,y,z) = In root x^2 +y^2 +z^2 change if the point P(x, y, z) moves from P0(2,2,6) a distance of ds = .

konstantin123 [22]

Answer:

$\frac{1}{44} \approx0.0227\hspace{3}units$

Step-by-step explanation:

In order to find the answer we need to calculate the directional derivative:

$D_uf(x,y,z)=\nabla f\bullet u$

$\nabla f =The\hspace{3}gradient\hspace{3}of\hspace{3}f\\u=Unit\hspace{3}vector$

The gradient of f is:

$\nabla f(x,y,z)=\langle\frac{x}{x^2+y^2+z^2}, \frac{y}{x^2+y^2+z^2},\frac{z}{x^2+y^2+z^2}\rangle$

The unit vector can be found as:

$u=\frac{v}{|v|} =\frac{3i+6j-2k}{\sqrt{3^2+6^2+(-2^2)} } =\langle\frac{3}{7} ,\frac{6}{7}, \frac{-2}{7} \rangle$

The directional derivative at the point is:

$D_uf(2,2,6)=\langle\frac{1}{22}, \frac{1}{22} ,\frac{3}{22} \rangle \bullet \langle \frac{3}{7} ,\frac{6}{7} ,\frac{-2}{7} \rangle =\frac{5}{22} \bullet \langle \frac{3}{7} ,\frac{6}{7} ,\frac{-2}{7} \rangle =\frac{5}{22}$

Finally, the problem tell us that the point moves a distance of 0.1 units. Hence f(x,y,z) will move:

$\frac{5}{22} * 0.1=\frac{1}{44}\approx 0.0227\hspace{3}units$

6 0

3 years ago

The box-and-whisker shows the average monthly temperatures in Mathville.

Andrei [34K]

Answer:

Step-by-step explanation:

The range is 50 because the maximum number is 90 and you subtract that from 40 which gives you 50.

90= maximum

40= minimum

90-40=50

7 0

4 years ago