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Kisachek [45]
4 years ago
11

Dr. Green finds a note from another scientist. It says how many boxes of bug nets they should bring, but there is a smudge over

the first digit of the number. Dr. Green knows that they must bring 320 nets with them, and each box contains 4 nets. What is the missing digit of the number in the note?
Mathematics
2 answers:
Marizza181 [45]4 years ago
8 0

Answer:

The correct answer is the number in the note is 80 and the first digit is 8.

Step-by-step explanation:

Dr. Green finds a note from another scientist. It says how many boxes of bug nets they should bring, but there is a smudge over the first digit of the number.

Number of nets that they must bring is 320.

Each box contains 4 nets.

There number of boxes necessary to be brought is given by \frac{320}{4} = 80.

Therefore the missing digit of number the number in the note is 8.

jasenka [17]4 years ago
3 0

Answer:

sorry i could not help      

When did the Indian class system begin to change?

A)    in the Hindu period

B)    in the Vedic period

C)    in the Aryan period

D)    when people first settled the Indus River Valley

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The correct answer is monthly . -APEX

Step-by-step explanation:

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4 years ago
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A batch consists of 12 defective coils and 88 good ones. Find the probability of getting two good coils when two coils are rando
Allushta [10]

<u>Answer:</u>

The probability of getting two good coils when two coils are randomly selected if the first selection is replaced before the second is made is 0.7744  

<u>Solution:</u>

Total number of coils = number of good coils + defective coils = 88 + 12 = 100

p(getting two good coils for two selection) = p( getting 2 good coils for first selection ) \times p(getting 2 good coils for second selection)

p(first selection) = p(second selection) = \frac{\text { number of good coils }}{\text { total number of coils }}

Hence, p(getting 2 good coil for two selection) = \frac{88}{100} \times \frac{88}{100} =\bold{0.7744}

5 0
3 years ago
Whats the area of the rectangle? ​
nevsk [136]

Answer:

<h2>24x^2-13x-2</h2>

Step-by-step explanation:

Area of rectangle = Length ×Breadth

Length =8x+1\\Breadth = 3x-2\\\\A =\left(8x+1\right)\left(3x-2\right)\\\\=8x\times\:3x+8x\left(-2\right)+1\times\:3x+1\times\left(-2\right)\\\\=8\times\:3xx-8\times \:2x+1\times \:3x-1\times\:2\\\\=24x^2-13x-2

8 0
3 years ago
The chubby bunny weighs 5 pounds, and it gains 3 pounds per year. The fat cat weighs 19 pounds, and it gains 1 pound per year. W
masya89 [10]

Answer: 7 years

Step-by-step explanation:

The Chubby bunny currently weighs 5 pounds but is increasing by 3 pounds per year. Assuming we wanted to find the weight in a given year, we can assume that given year is x. The expression would be:

= 5 + 3x

The fat cat weighs 19 pounds and gains by 1 pound a year.

Expression is:

= 19 + 1x

Equate the two equations together and find x:

5 + 3x = 19 + 1x

3x - 1x = 19 - 5

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x = 14/2

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3 years ago
A rectangle with the length of 75 miles and width of 25 miles can be used to model building usage at one of Florida's universiti
HACTEHA [7]

Answer:

24 students per mile

Step-by-step explanation:

Given in the question,

Length of rectangle for building university = 75 miles

Width of rectangle for building university = 25 miles

Total area:

Length x Width

= 75 x 25

= 1875 miles²

Only 70% of the buildings at this university are used for instruction

70% of 1875 miles²

70/100 x 1875

= 1312.5 miles²

32,125 students are enrolled at this university

So,

1312.5 miles² = 32,125 students

1 mile =  32,125/1312.5

          = 24 students per mile

8 0
3 years ago
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