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GaryK [48]
3 years ago
5

After an earthquake in a city 15% were found missing , 25 % critically injured , 20 % suffered minor injury and 400 people had n

o injury how many people were there in the city
Mathematics
2 answers:
Soloha48 [4]3 years ago
8 0

Answer:1000

Step-by-step explanation:

antoniya [11.8K]3 years ago
4 0

Answer:

60

Step-by-step explanation:

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A school custodian discovered a leak in a water pipe. the custodian found that 1,920 fluid ounces of water had leaked out. How m
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15 gallons

Step-by-step explanation:

Hope it helps. :)

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3 years ago
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In a recent swim meet, Jason swam 100 meters in 20 seconds.<br> Jason swam ? meters per second
mafiozo [28]

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5 m/s

Step-by-step explanation:

100 meters divided by 20 seconds

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Find the z-score such as 88% of the area under the normal curve is to the left of the z-score
jok3333 [9.3K]
If you have a calculator with statistical functions, that's the way to go.

On my TI-83, I typed in  invNorm(0.88) and got the result z = 1.17.

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3 years ago
What are the roots of the quadratic equation below 2x^2-5x-1=0
PilotLPTM [1.2K]

Answer:

roots=(5±sqrt(33))/4

Step-by-step explanation:

roots=(-b±sqrt(b^2-4ac))/2a

roots=(-(-5)±sqrt(25+8))/(2*2)

roots=(5±sqrt(33))/4

roots=(5+sqrt(33))/4 and (5-sqrt(33))/4

7 0
3 years ago
12. A carpenter made two tables. The first table is 4 feet
Arte-miy333 [17]

Answer:

a. True

b. True

c. False

d. False

Step-by-step explanation:

<u>First Table</u>

Length=10 feet, Width=4 feet

Area =10 X 4=40 Square Feet

<u>Second Table</u>

The second table is half as long  as the first table.

Length =0.5 X 10 =5 feet

Area=5 X Width= 5w

The area of the second table is one  fourth the area of the first table.

Area of Second Table =\frac{1}{4} X Area of first table

5w=\frac{1}{4} X 40

5w=10

Width of the Second table, w=2 feet

The following are true.

(a)The width of the second  table is 2 feet.

(b) The area of the second  table is 10 square feet.

6 0
3 years ago
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