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Naddik [55]
4 years ago
13

You have 4 dimes, 5 quarters, and 3 pennies in your pocket. What is the probability of reaching in and randomly picking out a di

me or a quarter? Express your answer as a fraction in lowest terms.
Mathematics
2 answers:
melisa1 [442]4 years ago
7 0
You have 12 coins all together. 4 dimes + 5quarters which equals 9 . So 9 out of 12 will be with a dime or quarter
Monica [59]4 years ago
6 0
9/11 chance that you will pick out a dime or a quarter.
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Ginger mows <br> 3/4 acre in 1 3/4 hours. What is her unit rate of acres mowed per hour?
vesna_86 [32]

9514 1404 393

Answer:

  3/7 acres per hour

Step-by-step explanation:

To find acres mowed per hour, divide acres mowed by hours:

  (3/4 ac)/(1 3/4 h) = (3/4)/(7/4) ac/h = 3/7 ac/h

Ginger's unit rate is 3/7 acres per hour.

7 0
3 years ago
The force F of gravity on a rocket varies directly with its mass m and inversely with the square of its distance d from Earth. W
xz_007 [3.2K]

Model for the Combined variation  is  F = \frac{km}{d^{2} }

Equation to find the mass of the rocket in terms of F and d is :

m=\frac{F d^{2} }{k}

<h3>What is Force ?</h3>

A force is the quantity that change the motion of the object. Force is that influence which can cause any object having some mass, to change it's position or to accelerate from it's original position.

Force (F) and mass (m) of any object are  directly proportional to each other. More the mass of the object , more the force will require to accelerate it.

Mathematically, we can write the equation of force as :

F = m . a

where , m = mass of the object

             a = constant value

In the statement given,

As, force of gravity varies directly with its mass

Therefore, F= k m , where k is a constant

Also force is inversely varies with square of distance d

Thus, F = k / d²

Combining both equations :

F = \frac{km}{d^{2} }  

and the equation of mass in terms of F and d can be written as :

m=\frac{F d^{2} }{k}

To know more about Force and it's equation, visit :

brainly.com/question/14857727

#SPJ4

7 0
1 year ago
Write this statement in your own words: ∃x ∈ ℕ, y ∈ ℤ|x² = y² Rewrite this using the appropriate mathematical notation: Even num
Serga [27]

Answer:

See below.

Step-by-step explanation:

1)

So we have:

\exists x\in\mathbb{N},y\in\mathbb{Z}|x^2=y^2

This can be interpreted as:

"There exists a natural number <em>x</em> and an integer <em>y</em> such that x² is equal to y²."

2)

So we want even numbers are in the set of integers.

\{2n:n\in\mathbb{Z}\}\in\mathbb{Z}

This is interpreted as:

"The set of even numbers (2n such that n is an integer) is in the set of integers"

6 0
3 years ago
Divide<br> -0.0328 0.002<br> What is the quotient?<br> Enter your answer in the box.
Marina86 [1]

The quotient is -16.4

\frac{-0.0328}{0.002}

Apply the fraction rule: $\frac{-a}{b}=-\frac{a}{b}$ $=-\frac{0.0328}{0.002}$

Divide the numbers: $\frac{0.0328}{0.002}=16.4$$=-16.4$

The quotient rule is a calculus technique for determining the derivative or differentiation of a function that is represented as a division or ratio of two differentiable functions.

Therefore, we can apply the quotient method to get the derivative of a function of the form f(x)/g(x), where f(x) and g(x) are both differentiable functions and g(x) ≠ 0. The quotient rule immediately follows the product rule and the notion of limits of derivation in differentiation.

Learn more about quotient rule brainly.com/question/15568137

#SPJ9

7 0
2 years ago
Latoya paid $17.64 for a 7.94-kg bag of dog food. A few weeks later she paid $18.88 for an $8.39-kg bag at a difference store. F
nadya68 [22]

Answer: The answer is given below

Step-by-step explanation:

From store 1:

Latoya paid $17.64 for a 7.94-kg bag of dog food. The unit price will be the price paid divided by the quantity. This will be:

= $17.64/7.94

= $2.22 per kg

For store 2:

A few weeks later she paid $18.88 for an $8.39-kg bag at a difference store. The unit price in the second store will be: $18.88/8.39 = $2.25 per kg.

The unit price of the first store is a better buy because the price is cheaper.

4 0
3 years ago
Read 2 more answers
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