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2 years ago

A stack of nickels has a mass of 45g. There are 9 nickels in the stack. What is the mass of one nickel?

Mathematics

2 answers:

melisa1 [442]2 years ago

8 0

The answer is 5g!!!!

Illusion [34]2 years ago

6 0

<h2>5 grams</h2>

Step-by-step explanation:

Given Information :

Mass of a stack of nickels = 45g

No of nickels in a stack = 9 nickels

Mass of one nickel = ?

Let the mass of one nickel be x

$9 \: nickels = 45g \\ 1 \: nickels = xg$

Cross Multiply

$9x = 45$

Divide both sides of the equation by 9

$\frac{9x}{9} = \frac{45}{9}$

Simplify

$x = 5$

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2 years ago

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Answer:

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Step-by-step explanation:

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2 years ago

Order the following numbers from least to greatest.

zaharov [31]

Answer:

-5.5 $-\sqrt{20}$ $\sqrt4$ $\frac{22}{7}$ 4.5

Step-by-step explanation:

Given:

The numbers to order from least to greatest is given as:

$-5.5, 4.5, 22/7,\sqrt4,-\sqrt{20}$

In order to compare these numbers, we have to convert them in same form.

Let us simplify each number in decimal form.

$-5.5 = -5.5\\\\4.5=4.5\\\\\frac{22}{7}=3.14\\\\\sqrt4=2\\\\-\sqrt{20}=-\sqrt{5\times 2^2}=-2\sqrt5=-4.47$

So, the least number is one which has the largest value with a negative sign.

Here, -5.5 is the least number.

The next smallest number is -4.47. So, $-\sqrt{20}$

The next smallest number is 2. So, $\sqrt4$

The next smallest number is 3.14. So, $\frac{22}{7}$

The greatest number is 4.5.

Therefore, the order from the least to greatest is:

-5.5 < $-\sqrt{20}$ < $\sqrt4$ < $\frac{22}{7}$ < 4.5

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2 years ago

What is the speed of a car that travels 220 km in 2h?

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Answer:

110 km an hour

Step-by-step explanation:

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2 years ago

There are 752 cal in 8 ounces of a certain ice cream how many calories are there in 2 pounds

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1 year ago