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3 years ago

13

According to a survey of workers,2/20 of them walk to work, 1/20 bike, 4/20 carpool,13/20 and alone. What percent of workers

walk or bike to work?

1 answer:

Wewaii [24]3 years ago

6 0

I think it’s 15 percent

2/20=10/100
1/20=5/100
10+5=15

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kolezko [41]

Now I can answer:

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MatroZZZ [7]

Answer:

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Step-by-step explanation:

<em>First, Subtract the numbers </em>

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3 years ago

-12+(-63)<br> Someone please help

kozerog [31]

Answer:

<h2>- 75</h2>

Step-by-step explanation:

-12+(-63)

=-12 - 63

= - 75

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3 years ago

From a number of apples a man sells half number existing apples plus 1 to first customer,sells 1/3rd of the remaining apples plu

Tresset [83]

Answer:

20 apples

Step-by-step explanation:

Let the number of apples = x

First customer:

Sold apples = (1/2) of x + 1

$=\frac{x}{2}+1\\$

Remaining apples

$=x -(\frac{x}{2}+1)\\\\=x - \frac{x}{2}-1\\\\=\frac{x}{2}-1\\$

Second customer:

Sold apples = (1/3) of remaining apples + 1

$=\frac{1}{3}*(\frac{x}{2}-1)+1\\\\=[\frac{1}{3}*\frac{x}{2}]- \frac{1}{3}*1+1\\\\=\frac{x}{6}-\frac{1}{3}+1\\\\=\frac{x}{6}-\frac{1}{3}+\frac{3}{3}\\\\=\frac{x}{6}+\frac{2}{3}\\$

Remaining apples =

$=(\frac{x}{2}-1)-(\frac{x}{6}+\frac{2}{3})\\\\=\frac{x}{2}-1-\frac{x}{6}-\frac{2}{3}\\\\=\frac{x}{2}-\frac{x}{6}-1-\frac{2}{3}\\\\=\frac{3x}{6}-\frac{x}{6}-\frac{3}{3}-\frac{2}{3}\\\\=\frac{2x}{6}-\frac{5}{3}\\\\=\frac{x}{3}-\frac{5}{3}$

Third customer:

Sold apples = (1/5) of reaming apples +1

$=\frac{1}{5}*[\frac{x}{3}-\frac{5}{3}]+1\\\\=\frac{1}{5}*\frac{x}{3}-\frac{1}{5}*\frac{5}{3}+1\\\\=\frac{x}{15}-\frac{1}{3}+1\\\\=\frac{x}{15}-\frac{1}{3}+\frac{3}{3}\\\\=\frac{x}{15}+\frac{2}{3}\\\\$

Remaining apples =

$=\frac{x}{3}-\frac{5}{3}-[\frac{x}{15}+\frac{2}{3}]\\\\=\frac{x}{3}-\frac{5}{3}-\frac{x}{15}-\frac{2}{3}\\\\=\frac{x}{3}-\frac{x}{15}-\frac{5}{3}-\frac{2}{3}\\\\=\frac{5x}{15}-\frac{x}{15}-\frac{7}{3}\\\\=\frac{4x}{15}-\frac{7}{3}\\$

Remaining apples with the man = 3

$\frac{4x}{15}-\frac{7}{3}=3\\\\\frac{4x}{15}=3+\frac{7}{3}\\\\\frac{4x}{15}=\frac{9}{3}+\frac{7}{3}\\\\\frac{4x}{15}=\frac{16}{3}\\\\x=\frac{16}{3}*\frac{15}{4}\\\\x=4*5$

x = 20

He had 20 apples

3 0

3 years ago