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neonofarm [45]
3 years ago
14

Kevin and Randy Muise have a jar containing 47 coins, all of which are either quarters or nickels. The total value of the coins

in the jar $8.15 How many of each type of coin do they have ?
Mathematics
1 answer:
SVETLANKA909090 [29]3 years ago
4 0
Ik but learn its simple but there is multiple answers
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Solve for x by first setting up two equations. Then find the PRODUCT of your solutions |2x+5|=7
Kobotan [32]

Answer: see below

Step-by-step explanation:

|2x+5|=7

2x+5=±7 ⇔ since the absolutely value of any number is all positive, so the value in side can be either positive or negative

2x+5=7  or  2x+5=-7

    2x=2            2x=-12

      x=1      or       x=-6

----------------------------------------

The product of the two solutions

1 × -6=-6

Hope this helps!! :)

Please let me know if you have any question

5 0
3 years ago
What is f(-3) for the function f(a). =-2ax2-5a+4
Nataly_w [17]

The value of function f(x). =-2ax² -5a + 4 at a = -3 will be -23a + 2.

<h3>What is a function?</h3>

The machine will only accept specified inputs, described as the function's domain, and will potentially produce one output for each input.

For example y = sinx ,  y = x + 3 ets.

Given,

f(x)  = - 2ax² -5a + 4

x = -3

f(-3) =  - 2a(-3)² -5a + 4

f(-3) = -18a - 5a + 4

f(-3) = 23a + 2

Hence the value of function f(x). =-2ax² -5a + 4 at a = -3 will be -23a + 2.

For more about the function

brainly.com/question/23712366

#SPJ1

7 0
2 years ago
Read 2 more answers
What type of correlation is suggested by the scatter plot?
Bas_tet [7]
No correlation is suggested
8 0
3 years ago
The table below shows the relative frequencies of the color of cars bought last month by males and females. Which percentage rep
Pani-rosa [81]
The first thing we must do for this case is to observe the highest relative frequency of the table in the total column.
 For the white car we have:
 Male = 0.11
 Female = 0.20
 Total = 0.31
 The percentage is given by:
 (0.31) * (100) = 31%
 Answer:
 
The percentage that represents the car bought most often is:
 
31%
6 0
3 years ago
Why is it important for a rainy-day fund to be highly liquid? A. Funds need to earn a high rate of return. B. Funds need to be e
Gnoma [55]

Answer: B. Funds need to be easily accessible

This is so you can access it easily without paying a penalty

4 0
2 years ago
Read 2 more answers
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