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2 years ago

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The Van Gogh Middle School class president asked 200 students to vote on a theme for the spring formal dance. 140 students voted

for a "Starry Night" theme. What percent of the students voted for a "Starry Night" theme?
Pick the model that represents the problem.

1 answer:

Ivenika [448]2 years ago

3 0

Good night. Hope this helps

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Y=6x+4
Blanks from left to right:
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1 year ago

A Simple Random Sample reflects that ________ individual in the population has an ________ chance of being selected.

monitta

Answer:

any, equal

Step-by-step explanation:

A Simple Random Sample reflects that any individual in the population has an equal chance of being selected.

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2 years ago

Harmonic mean if a number h such that (h-a)/(b-h)=a/b Prove h is H(a,b) iff satisfies either relation a. (1/a)-(1/h) = (1/h) - (

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A.

$\displaystyle\frac1a-\frac1h=\frac1h-\frac1b$
$\implies\displaystyle\frac{h-a}{ah}=\frac{b-h}{bh}$
$\implies\displaystyle\frac{h-a}{b-h}=\frac{ah}{bh}$
$\implies\displaystyle\frac{h-a}{b-h}=\frac ab$

b.

$\displaystyle h=\frac{2ab}{a+b}$
$\displaystyle\implies\frac{h-a}{b-h}=\frac{\frac{2ab}{a+b}-a}{b-\frac{2ab}{a+b}}$
$\displaystyle\implies\frac{h-a}{b-h}=\frac{2ab-a(a+b)}{b(a+b)-2ab}$
$\displaystyle\implies\frac{h-a}{b-h}=\frac{ab-a^2}{b^2-ab}$
$\displaystyle\implies\frac{h-a}{b-h}=\frac{a(b-a)}{b(b-a)}$
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The other direction can be proved by following the manipulations in the reverse order.

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2 years ago

Adding and subtracting fractions

kakasveta [241]

Answer:

Step-by-step explanation:

add the top of one and the bottom of the other then the top of the other and the bottom of one

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