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Alinara [238K]
3 years ago
8

What is the density of a block with a mass of 420 g and a length of 2cm, 3cm wide, and 1cm long​

Mathematics
1 answer:
Basile [38]3 years ago
4 0

Answer:

Step-by-step explanation:

Find the volume first.

V= l * w * h

l = 2    cm

w = 3  cm

h = 1   cm

V = 2 * 3 * 1 = 6 cm^3

Density = mass / volume

Density  = 420 grams / 6 cm^3

Density = 70 grams / cc^3

Kind of large. Check your givens.

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Norma-Jean [14]

The Ratio of the boy's allowance to his sister's is 5 : 4.

The new Ratio is 1 : 10000.

<h3>What is definition of ratio?</h3>
  • The quotient of two mathematical expressions, 1a. b: the proportion between two or more items in terms of quantity, amount, or size.
  • What does the arithmetic term "ratio" mean?
  • An ordered pair of numbers a and b, represented as a / b, is a ratio if b is not equal to 0. A proportion is an equation that sets two ratios at the same value.
  • For instance, if there is 1 boy and 3 girls, you may express the ratio as 1: 3 (there are 3 girls for every boy), meaning that there are 1 in 4 boys and 3 in 4 girls.

To learn more about :Ratio

Ref : brainly.com/question/2328454

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6 0
1 year ago
Find the area of each figure. Round to the nearest hundredth if needed.
Hitman42 [59]

Answer:

<h3>#1</h3>

<u>Trapezoid</u>

  • A = (b₁ + b₂)h/2
  • A = (4.8 yd + 29.4 ft)(8 yd)/2 = (14.6 yd)(4 yd) = 58.4 yd²
<h3>#2</h3>

<u>Rectangle</u>

  • A = ab
  • A = 2 yd * 3.1 yd = 6.2 yd²
<h3>#3</h3>

<u>Equilateral triangle</u>

  • A = √3/4a²
  • A = √3/4(10²) = 25√3
<h3>#4</h3>

<u>Regular octagon</u>

  • A = aP/2
  • A = 14.5(12*8)/2 = 696

6 0
3 years ago
Tyler made a scale drawing of a 24 ft long boat. In his drawing, the boat was 6 inches. The scale that Tyler used for his drawin
defon

Answer:

In Tyler scale, 1 inch equals 4 ft.

Step-by-step explanation:

Giving the following information:

Tyler made a scale drawing of a 24 ft longboat. In his drawing, the boat was 6 inches.

<u>We know that 1 ft is 12 inches. Therefore, 24 ft:</u>

24*12= 288 inches

<u>Now, we have to determine the scale that Tyler used.</u>

<u></u>

1 Tyler inch= 288/6= 48 inches

In ft:

1 Tyler inch= 48/12= 4 ft

In Tyler scale, 1 inch equals 4 ft.

3 0
3 years ago
What is 27/125 in exponential form?
stealth61 [152]
3/5 I think is the answer
8 0
3 years ago
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Write two multiplication equations using fractions and mixed numbers. Write one equation that will have a product greater than t
HACTEHA [7]
13=6×2 40×5=200>2 that is how solved it.
7 0
3 years ago
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