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Marysya12 [62]
3 years ago
5

You have four coins

Mathematics
1 answer:
Anettt [7]3 years ago
4 0
Empty Set
0

One Coin
1
5
10
25

Two Coins
1 5
1 10
1 25
5 10
5 25
10 25

Three coins
1 5 10
1 5 25
1 10 25
5 10 25

Four Coins
1 5 10 25

Done. I left the proper formatting to you.
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Evaluate 1/x^-2 for x= 7.<br> -49<br> 49<br> 1/49<br> Please help <br> And thx but HURRY
ella [17]
Answer: 49

Step-by-Step Explanation:

As we can see, we have been given a negative exponent for “x”. Hence we have to take the reciprocal which would be x squared.


Therefore, x = 7
= x^2 = 7 * 7
= 49
5 0
2 years ago
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What is the standard form of the equation <br> 2(3x + 2y) - 13 = 0?
Lerok [7]

Answer:

6x+4y-13=0

Step-by-step explanation:

4 0
3 years ago
Jun swims 18 laps and Mara swims 25 laps. How many fewer laps did Jun swim than Mara ?
marysya [2.9K]

Answer:

7

Step-by-step explanation:

All you have to do to solve this is subtract 18 from 25

5 0
3 years ago
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A particular rocket taking off from the earth surface uses fuel at a constant rate of 12.5 gallons per minute the rocket initial
faltersainse [42]

Answer:

y=12.5x+225

Step-by-step explanation:

Let

x ----> the number of minutes

y ----> the amount of fuel in gallons

we know that

The linear equation in slope intercept form is equal to

y=mx+b

where

m is the unit rate or slope

b is the y-intercept or initial value

we have that

The unit rate or slope is equal to

m=12.5\ \frac{gal}{min}

b=225\ gal ----> initial value (value of y when the value of x is equal to zero)

substitute

y=12.5x+225

3 0
3 years ago
Which of the following expressions represents the perimeter of the figure below?
Ulleksa [173]
The perimeter is D because you have to add all the sides up. 2 + 2 and 3 plus 3 equals 10x and then 8 + 8 and 2 + 2 equals 20 so 10x- 20.
5 0
2 years ago
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