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diamong [38]
3 years ago
14

A money box contains four $2 coins, seven $1

Mathematics
1 answer:
AlladinOne [14]3 years ago
3 0

Answer:

Part #1:  13/15

Part #2:  11/45

Part #3:  23/45

Step-by-step explanation:

Part #1:  So add the total amount of coins:  4 + 7 + 12 + 22 = 45

Since the only coins that are at most $1 are:  The $1 coins, 50 cent coins, and the 20 cent coins.  That is a total of 7 + 12 + 20 = 39

39/45

13/15

Answer:  13/15

Part #2:  Since the only coins that are $1 or $2:  The $1 coins and the $2 coins.  That is a total of 4 + 7 = 11

11/45

Answer:  11/45

Part #3:  Since the only coins that are at least 50 cents:  The $1 coins and the $2 coins and the 50 cent coins.  That is a total of 4 + 7 + 12 = 23

23/45

Answer:  23/45

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docker41 [41]
Ur missing numbers are -2, 6, and 36

Since the center point is (-2,6), the numbers are reversed in the equation to: (x+2) or(x- -2) and (y-6)

The radius is 6 units so u square it to get 36
7 0
4 years ago
HELP PLEASE!!! SHOW WORK!! A professional pianist spends an average of 45 hours practicing the piano in a three-week period. Usi
kicyunya [14]

Answer:

An average of about 450 hours; You could say something along the lines of "If the pianist who practices an average of 45 hours per week practices everyday for three months, they would play for approximately 450 hours total."

Step-by-step explanation:

We could write an equation to make it simpler to figure out, making the number of hours after three months = n, 4 = weeks in a month, 3 = the number of months, and 45 = the number of hours after a week. As an equation, it would look like:

45 * 3 * 4 = n

We know 3 *4 is 12, so the equation becomes 45 * 12 = n.

45 * 12 = 540, therefore the pianist practices an average of approximately 540 hours over a three-month period of time.

4 0
4 years ago
Which of the following is an equivalent expression to: -2(-5x - 8)
exis [7]

Answer:

10x + 16

Step-by-step explanation:

Doing the distributive property, we get the answer 10x + 16.

5 0
3 years ago
Read 2 more answers
PLEASE HELP ASAP, WILL GIVE BRAINLIEST!
mojhsa [17]

Answer:6

Step-by-step explanation:

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3 0
3 years ago
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= neage Check Find the distance between the polnts (6,-5) and (-3,-5). ​
miskamm [114]

Answer:

The answer is

<h2>9 units</h2>

Step-by-step explanation:

The distance between two points can be found by using the formula

<h3>d =  \sqrt{ ({x1 - x2})^{2} +  ({y1 - y2})^{2}  }  \\</h3>

where

(x1 , y1) and (x2 , y2) are the points

From the question the points are

(6,-5) and (-3,-5)

The distance between them is

<h3>d =  \sqrt{ ({6 + 3})^{2} + ( { - 5 + 5})^{2}  }  \\   = \sqrt{ {9}^{2} +  0 }  \\  =  \sqrt{81}</h3>

We have the final answer as

<h3>9 units</h3>

Hope this helps you

4 0
4 years ago
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