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MrRa [10]
3 years ago
8

Deana bought 12 packages of batteries. Some of the packages contained 4 batteries and some contained 6 batteries. She bought a t

otal of 62 batteries. How many packages did Deanna buy that contained 6 batteries?
Mathematics
1 answer:
NARA [144]3 years ago
7 0

Answer:

She bought 7 battery packs containing 6 batteries

Step-by-step explanation:

4bx5= 20 batteries

6bx7=42 batteries

42+20=62

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What is 2x-3=4(x-5)? And also what is 2x squared=50?
Ierofanga [76]
2x - 3 = 4(x - 5)
2x - 3 = 4x - 20
4x - 2x = 20 - 3
2x = 17
x = 8 1/2

2x² = 50
x² = 25
x = \pm√25
x = \pm5


6 0
3 years ago
What is the graph of the function f(x) = -x^2+x+20/x+4
mr_godi [17]
F(x) = (-x²+x+20) / (x+4)

-x²+x+20     | x+4
+x²+4x          -x+5
 \\\\ 5x+20
     -5x-20
      \\\\\\\\\
 
 f(x) = (x+4)(-x+5) / (x+4)
 
 f(x) = (-x+5)

The graph is a decreasing line, with origin from 5.



   

3 0
3 years ago
HELP PLEASE ASAP
kondaur [170]
Answer: D. $3,450
Given: 2,500 shares of a stock bought for $8 a share
<span>Probabilities:  the stock will rise to a value of $32 a share is 22%</span>  <span>                                                the stock will fall to $3 a share is 78%</span>
<span>Question: What is the expected value of the investor’s profit from buying the stock?</span>
Solution: (22%(32-8)-78%(8-3))2500
                (.22(24)-.78(5))2500
                (5.28-3.9)2500
                (1.38)2500
                3450
8 0
3 years ago
Fantasy Lanes bowling alley charges each patron $3 to rent shoes plus $5 per hour for bowling. This relationship is represented
jeka57 [31]
It is a line
it represents te relationship between the cost and time bought
7 0
3 years ago
Do the ratios 2/5 and 6/15 form a proportion?
Ivanshal [37]
Yes because because if you multiply 3 to 2 and 5 you’ll get 6/15
3 0
2 years ago
Read 2 more answers
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