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Vedmedyk [2.9K]
3 years ago
7

Divide. Then, check with multiplication.

Mathematics
1 answer:
luda_lava [24]3 years ago
5 0

Answer:

a.= 3.714

b.= 2.405

Step-by-step explanation:

a. 3.714 x 21 = 78

b. 2.405 x 37 = 89

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Nine cupcakes are what part of a dozen
Snezhnost [94]
They are a part of 2 dozen
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2 years ago
Krystal’s poster project for reading class is 2 feet high and 1 1 2 feet wide. Her friend Victoria’s poster is 4 feet high and 1
Bess [88]

The area of Victoria's poster is twice the area of Krystal's poster.

<h3>How compare the areas of two similar posters</h3>

The two areas are shown in the image attached below. Each poster represents a rectangle and the ratio between the two areas (r_{A}), no unit, is defined by the following formula:

r_{A} = \frac{w_{V}\cdot h_{V}}{w_{K}\cdot h_{K}}     (1)

Where:

  • w_{V} - Width of Victoria's poster, in feet.
  • h_{V} - Height of Victoria's poster, in feet.
  • w_{K} - Width of Krystal's poster, in feet.
  • h_{K} - Height of Krystal's poster, in feet.

If we know that h_{V} = 4\,ft, w_{V} = 1.5\,ft, h_{K} = 2\,ft and w_{K} = 1.5\,ft, then the ratio between the two areas is:

r_{A} = \frac{(4)\cdot (1.5)}{(2)\cdot (1.5)}

r_{A} = 2

The area of Victoria's poster is twice the area of Krystal's poster. \blacksquare

To learn more on ratios, we kindly invite to check this verified question: brainly.com/question/1504221

5 0
2 years ago
F a particular galaxy has a total mass of 10 to the 58 grams and the average star in that galaxy has a mass of 10 to the 34 gram
atroni [7]

Answer:

10^{24}=1000,000,000,000,000,000,000,000 stars.

Step-by-step explanation:

We have been given that a particular galaxy has a total mass of 10^{58} grams and the average star in that galaxy has a mass of 10^{34} grams. We are asked to find the number of stats in the galaxy.

To find the number of stats in the given galaxy, we will divide total mass of galaxy by mass of an average star in the galaxy as:

\text{The number of stats in the given galaxy}=\frac{10^{58}}{10^{34}}

Using exponent property \frac{a^m}{a^n}=a^{m-n}, we will get:

\text{The number of stats in the given galaxy}=10^{58-34}\\\\\text{The number of stats in the given galaxy}=10^{24}\\\\\text{The number of stats in the given galaxy}=1000,000,000,000,000,000,000,000

Therefore, there are approximately 1000,000,000,000,000,000,000,000 stars in the given galaxy.

5 0
3 years ago
What is the solution to the expression Negative 2 minus 3 minus (negative 4)? A number line going from negative 10 to positive 1
beks73 [17]

The solution of the expression is -1 ⇒ 3rd answer

Step-by-step explanation:

Let us revise some important rules on the number line

  • If we add number to another number we move to right
  • If we subtract a number from another number we move to left

∵ The expression is negative 2 minus 3 minus (negative 4)

∵ negative 2 = (-2)

∵ minus means (-)

(-2) minus 3 means move 3 units from (-2) to left, so you will pass -3, -4, and stop at -5

∴ (-2) - 3 = -5

∵ minus (negative 4) = - (-4)

- Remember (-)(-) = (+)

∴ minus (negative 4) = + 4

That means move 4 units to the right from -5, then you will pass -4, -3, -2, and stop at -1

∴ -5 + 4 = -1

∴ The expression (-2) - 3 - (-4) = -1

The solution of the expression is -1

Learn more:

You can learn more about the directed numbers in brainly.com/question/10364988

#LearnwithBrainly

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3 years ago
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yan [13]

Answer:

y = k/x

k = y.x = 7 x 9 = 63

Hence equation is

yx = 63

Step-by-step explanation:

https://brainly.in/question/7822716

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3 years ago
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