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pishuonlain [190]
3 years ago
12

Addie had $3.25 in fine and quarters. Her number of dimes is 8 more than her number of quarters, how many of each coin does she

have?
Mathematics
1 answer:
Arturiano [62]3 years ago
5 0

Answer:

7 quarters and 15 dimes

Step-by-step explanation:

lemme hold a dollar

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At what value of x do the graphs of the equations below intersect?
Bogdan [553]

Answer:

Step-by-step explanation:

The intersection is the point where two equations meet. It is calculated by substituting terms into the equations involved. For the given systems of equation, calculations are as follows:

2x - y = 6

y = 2x - 6

We substitute the equation above to the second equation.

5x + 10y = –10

5x + 10( 2x - 6 )= –10

Simplifying, 

5x + 20x - 60 = -10

25x = 50

x = 2

Therefore, the intersection has the value of x equal to 2.

3 0
3 years ago
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A sweater is marked down from $25 to $18. What is the percent of change
zhenek [66]

Answer:

28 percent off is the answer :)

Step-by-step explanation:

5 0
2 years ago
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Solve the system of linear equations below 2x-y=0 3x-2y=-3
Lynna [10]
2x - y = 0
2x = y

3x - 2(2x) = -3
3x - 4x = -3
-x = -3
x = 3

2(3) = y
6 = y
3 0
3 years ago
A cylinder, cone, and sphere are shown below. The three figures have the same radius. The cylinder and cone have the same height
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I’m just trying so much better to talk now but it’s just a good 256
8 0
2 years ago
An engineering crew ran several tests on a new automobile engine they were designing. The mean fuel consumption was 52.4 miles p
zhenek [66]

Any value which is more than 2 standard deviations away from the mean is considered to be "unusual."  

2 standard deviations above the mean 52.4 mp would be 52.4+2(1.8), or 56; 2 std devs below the mean would be 52.4 - 2(1.8), or 48.8.  Thus, any value larger than 56 or any value smaller than 48.8 would be "unusual."

54.8, 49.1 and 51.3 are not unusual; 56.5 is unusual, because it's greaster than 56.

8 0
3 years ago
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