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tigry1 [53]
3 years ago
14

Crystal has exactly $2.40 in quarters, dimes, and nickers. She has the same number of each type of coin. What is the number?​

Mathematics
1 answer:
Nadya [2.5K]3 years ago
8 0

Answer:

6 quarters, 6 dimes, and 6 nickels

Step-by-step explanation:

6 quarters=1.50

6 dimes=0.6

6 nickels=0.3

1.5+0.6+0.3=2.40

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What is the y cordinate of the solution<br>solve 8 and 9<br>​
Flauer [41]

Answer:

8) The y coordinate of the solution: 4

9) Average of change from x = 2 to x = 4: 11

Step-by-step explanation:

8)

y = 2x + 2

y = x^2 + 3

So

x^2 + 3 = 2x + 2

x^2 - 2x + 3 - 2 = 0

x^2 - 2x + 1 = 0

(x - 1)^2 = 0

x - 1 = 0

x = 1

Plug in x = 1 into either those 2 equations to find y

y = 2(1) + 2 = 4

or

y = (1)^2 +  3 = 1 + 3 = 4

Answer:

The y coordinate of the solution is 4

9)

p(x) = x^2 + 5x - 2

p(2) = 2^2 + 5(2) - 2 = 4 + 10 - 2 = 12

p(4) = 4^2 + 5(4) - 2 = 16 + 20 - 2 = 34

Average of change from x = 2 to x = 4:

[p(4) - p(2)]/[(x(4) - x(2)] = (34 - 12)/(4-2) = 22 /2 = 11

Answer:

Average of change from x = 2 to x = 4 :11

4 0
3 years ago
Please help with these questions!!:))
Sonbull [250]

Answer:

The first one : decay

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When the argument of the exponential expression is bigger that 1 then it represents a growth

When it's less than 1 and above 0 then it's a decay

8 0
3 years ago
What are all the factors of 54? O 1,2, 6, 9, 26, 54 O 1,2, 6, 9, 27, 54 O 1, 2, 3, 6, 9, 18, 26, 54 O1,2, 3, 6, 9, 18, 27, 54.
aivan3 [116]

Answer:

1 2 3 6 9 18 27 and 54 I hoped this helps

8 0
2 years ago
Read 2 more answers
Please help me I don’t understand :(
horrorfan [7]

b=5, commutative property

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8 0
2 years ago
Carla's team won 3 of its 5 games. Elena's team won games at the same rate and won 12 games. How many games did Elena's team pla
Maurinko [17]
This is all about proportions. You can make this into fractions:

3/5 = 12/x

A good way to handle this, is to make one of those numbers the same. If you do (3/5) * 4, you would get 12/20 (because 4 * 3 = 12 and 4 * 5 = 20)

So then you have this:

12/20 = 12/x

It's basically a fill in the blank from there. x= 20

Elena's team played 20 games
4 0
3 years ago
Read 2 more answers
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