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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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Class : IX
almond37 [142]

Step-by-step explanation:

a=8cm

b=15cm

c=17cm

s=a+b+c/2

 =8+15+17/2

 =40/2

 =20

Using heron's formula,

ar. of triangle= √s(s-a)(s-b)(s-c)

                     =√20(20-8)(20-15)(20-17)

                     =√20×12×5×3

                      =√2×2×5×2×2×3×5×3

                      =2×2×3×5

                      =60cm²

On side 17cm,

Ar. of triangle=1/2×b×h

60=1/2×17×h

∴h=60×2/17

    =7.05 cm

5 0
4 years ago
Sarah scored an 8/10 on the spelling test and Jonathan scored 75% of Sarah’s score on the spelling test. What is the score of Jo
Fudgin [204]

\frac{3}{5} is the score of Jonathan.

<h3 /><h3>What is percentage?</h3>

Percentage, which may also be referred to as percent, is a fraction of a number out of 100%. Percentage means "per 100" and denotes a piece of a total amount.

To calculate the percentage , Use the percentage formula:

X * \frac{Percentage}{100} = Y

According to the question:

Sarah scored on the spelling test  = \frac{8}{10}

Jonathan scored  = 75%

By formulating both the values;

\frac{8}{10}  * \frac{75}{100}

= \frac{3}{5}

Therefore , \frac{3}{5} is the score of Jonathan.

Learn more about percentage here:

brainly.com/question/13450942

#SPJ1

8 0
2 years ago
How can you prove a triangle is a right triangle? (4 points)
Alexeev081 [22]

Answer:

a

Use the distance formula to see if at least two sides are congruent.

Step-by-step explanation:

If the square of the length of the longest side of a triangle is equal to the sum of the squares of the other two sides, then the triangle is a right triangle

5 0
3 years ago
Enter the numerator and denominator of the fraction in simplest form that is equal to the decimal number shown.
nordsb [41]

Answer:

23/100

Step-by-step explanation:

0.23 means two digits after decimal point so it is 100

then we write 23 /100 and then simplify

23 is a prime number , it can't be simplified

5 0
3 years ago
The cone pictured has a surface area of ? square meters. (Use 3.14 for π .)
postnew [5]

Answer:

268.34 m^2

Step-by-step explanation:

4 0
4 years ago
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