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2 years ago

108 identical books have a mass of 30 kg.Find

Mathematics

1 answer:

d1i1m1o1n [39]2 years ago

4 0

Answer:

41.67 kg

72 books

Step-by-step explanation:

mass of 150 books = 150/108 × 30 kg

= 41.67 kg

number of books = 20/30 × 108 books

= 72 books

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1. Solve the equations below.

Sergio039 [100]

Step-by-step explanation:

A) 3x + 8 = 23

3x = 23 - 8

3x = 15

x = 15 / 3 = 5

B) 5x + 1 = 3x + 17

5x - 3x = 17 - 1

2x = 16

x = 16 /2 = 8

C) 4 (x+2) = 32

4x + 8 = 32

4x = 32 - 8

4x = 24

x = 24 / 4 = 6

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2 years ago

Shade a model that shows 0.674

Ratling [72]

0.674 means that it 674/1000

which mean that if the model consists of 1000 squares, you have to shade 674 of the squares.

If the model consists of 500 squares, you have to shade 337 of the squares ( you get the number after dividing both 674 and 1000 with 2)

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3 years ago

What is the simplified form of 144x16 ?

Solnce55 [7]

The answer is 2304 in the simplified form

7 0

2 years ago

If the nth term of a number sequence is n^2+4 find the first 3 terms and the 10th term.

Colt1911 [192]

Answer:

a) The sequence of first three terms

5 , 8 , 13 ..

b) The $10^{th}$ of the sequence

a₁₀ = 104

Step-by-step explanation:

Step(i):-

Given $n^{th}$ term of the sequence

aₙ = n² + 4

put n=1

First term a₁ = 1² +4 = 1+5

put n =2

Second term a₂ = 2²+4 = 4+4 =8

Put n=3

Third term a₃ = 3² +4 = 9+4 =13

The sequence of first terms

5 , 8 , 13 ..

Step(ii):-

Given $n^{th}$ term of the sequence

aₙ = n² + 4

put n =10

a₁₀ = 10²+4 = 100+4 = 104

a₁₀ = 104

The $10^{th}$ of the sequence

a₁₀ = 104

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3 years ago

I need help quick. Can someone help me?

VMariaS [17]

Answer:

155 /84 or 1 and 71 eighty-fourths

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers