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Yakvenalex [24]

2 years ago

13

Mrs. Tart takes a survey in class. She discovers 60% of her students prefer using pens over pencils in class.

2 answers:

FrozenT [24]2 years ago

7 0

Answer:

20 students

Step-by-step explanation:

If,

60% = 12 students

∴ 1% = 12\60 students

∴ 100% = (12*100)\60 students

= 20 students

{ easiest way for me}

Volgvan2 years ago

6 0

Answer: D

Step-by-step explanation:

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Of the following sets, which represents a function? Situation A = {student's name, all the colors that the student likes} Situat

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Step-by-step explanation:

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The change in altitude of a bird after 2 __ 1 2 seconds was –41 __ 1 4 feet. What was the average change in altitude of the bird

svlad2 [7]

Answer:

$Average\ Change = -1\frac{7}{10} ft/s$

Step-by-step explanation:

Given

$Altitude\ Change = -4\frac{1}{4} \ ft$

$Time = 2\frac{1}{2}\ s$

Required

Determine the average change

This is calculated as follows:

$Average\ Change = \frac{Altitude\ Change}{Time}$

This gives:

$Average\ Change = \frac{-4\frac{1}{4}}{2\frac{1}{2}}$

$Average\ Change = -4\frac{1}{4}/2\frac{1}{2}$

Convert to improper fractions

$Average\ Change = -\frac{17}{4}/\frac{5}{2}$

Convert to multiplication

$Average\ Change = -\frac{17}{4}*\frac{2}{5}$

$Average\ Change = -\frac{17}{2}*\frac{1}{5}$

$Average\ Change = -\frac{17}{10}$

$Average\ Change = -1\frac{7}{10} ft/s$

8 0

2 years ago

How do I calculate 1/5 of 125

Brrunno [24]

Answer:

You do 1/5 x 125 which equals 25

Step-by-step explanation:

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2 years ago

8. If 30 cents out of every 1 dollar goes to taxes and the rest is net income, what's the

aniked [119]

Answer:

D. 3:7

Step-by-step explanation:

1 dollar = 30 cents tax + 70 cents net income

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2 years ago

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The combined weight of three basset hounds is 185 pounds. The two smaller dogs weigh the same. The difference between the larger

olga2289 [7]

Answer:

75 pounds

Step-by-step explanation:

(x) + (x) + (x+20) = 185

3x + 20 = 185

3x = 165

x = 55

Large dog = 55 + 20 = 75

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3 years ago