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nevsk [136]
3 years ago
13

85 out of 200 workers in a building arrive at 8:00 a.m. What percent of workers in the building do NOT arrive at 8:00 a.m.?

Mathematics
1 answer:
fiasKO [112]3 years ago
8 0

Answer:

57.5 %

Step-by-step explanation:

First find out the number of workers that do not arrive by 8 am

200 -85 = 115

Take this number divided by the total

115/200 = .575

Change to percent form

57.5 %

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Ann has 30% less money than Mary, and Jessica has 70% more than Mary. If the 3 of them have a (added up) total of $102, how much
Roman55 [17]
Let x be the amount of Ann money, y be Jessica's money and z Mary money. 
30% of z equates 0.3*z. 
Ann has 30% less than z so: x = z - 0.3z = 0.7z.
70% of z equates 0.7z. 
"Jessica has 70% more than Mary " we deduce the equation: y =z+0.7z= 1.7z.
Signe the total is $102, we deduce the equation x+y+z = 102. 
x=0.7z and y=1.7z then 0.7z+1.7z+z=102, therefore 3.4z=102 then 
z =102/3.4 = $30.
x=0.7*30= 21 and y=1.7*30=51.

Ann has $21, Mary has $30 and Jessica has $51.
  
3 0
3 years ago
Jan lost 22 points on her exam. She got 11 questions wrong.
rosijanka [135]

Answer:

2

Step-by-step explanation:

22/11=2

7 0
3 years ago
Read 2 more answers
A subway train makes six stops of equal length during its 21 km run. The train is actually moving for 20 minutes of the trip. At
photoshop1234 [79]

Answer:

The subway train can stop for a maximum of 2.5 minutes on each stop.

Step-by-step explanation:

3 0
3 years ago
6. Solve for the variable: 11x - 22 = -11x - 22
pentagon [3]
11x-22=-11x-22
11x+11x=-22+22
22x=0
x=0/22
x=0
Then the answer is option B
8 0
3 years ago
Read 2 more answers
Markin is making a flag shaped like a square. Each side measures 13 m. He wants to add ribbon along the edges. He has 48 m of ri
Marina86 [1]

Answer:

Ribbon can't be enough

Step-by-step explanation:

Markin is making a flag shaped like a square. Each side measures 13 m. He wants to add ribbon along the edges. He has 48 m of ribbon. Does he have enough ribbon? If it is not enough,how much more ribbon needed?

Given :

Side length of square shaped flag = 13 m

Length of ribbon markin has to add along edges = 48 m

To know if the ribbon will enough ; we obtain the perimeter of the square shaped flag ;

4 * side length

4 * 13 = 52 meters

52 > 48

Since the perimeter is greater than the length of ribbon, then ribbon can't be enough

5 0
3 years ago
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