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inna [77]
3 years ago
12

2) A pair of socks is purchased for $3.00 it is then sold for $4.00 What is the percent of change that

Mathematics
2 answers:
maxonik [38]3 years ago
6 0

Answer:

33 was the change and it incressed

Step-by-step explanation:

Veronika [31]3 years ago
4 0

Answer:

5% change

Step-by-step explanation:

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Can someone answer this please
Marina86 [1]

Answer:

\frac{3}{38}

Step-by-step explanation:

→ Find the total number of people

5 + 14 + 1 + 3 + 15 = 38

→ Find the number of blue

3

7 0
3 years ago
Read 2 more answers
gabby's piggy bank contains dimes and nickels worth $6.40. If she has 84 coins in all, how many of each does she have?
Sergeu [11.5K]
If we let Q be the number of quarters and N be number of nickels, this is the formula we would use:
[1] 25Q + 5N = 635 (using cents instead of dollars)


We also know something about Q and N.

[2] Q + N = 51


So multiply both sides of the second equation by 5. The reason we do this is because we're going to need to cancel out one of the variables (either Q or N) to solve for the other one. If we multiply times 5, we'll have 5N in both equations.
5Q + 5N = 255

Now we have two equations, and the second one can be subtracted from the first.

25Q + 5N = 635
-(5Q + 5N) = -255
---------------------
20Q = 380
so
Q = 19

There are 19 quarters.

And since there are 51 coins in all, 51-19 = 32 nickels.
5 0
2 years ago
Find the slope of the line that passes through each pair of points. A (1,2) B (4,7)
V125BC [204]
The slope would be 3/5
5 0
2 years ago
Read 2 more answers
A student solved a quadratic equation as shown here:
djverab [1.8K]

Answer:

x = 3/2 or x = -4

Step-by-step explanation:

The identifiable error the students have is that before the left hand side of the equation is factorized, the right hand side value of 12 ought to be brought to the left hand side, leaving a net value of zero on the right hand side. Then whatever is factored  on the left hand side is then equated to zero and then we can find the two values of x after setting each of the individual factors to zero

We proceed as follows;

2x^{2} + 5x = 12\\2x^{2} + 5x - 12 = 0\\2x^{2} + 8x -3x -12 = 0\\2x(x+4) -3(x+4) = 0\\(2x-3)(x+4) = 0\\2x-3 = 0 or x+4 =0\\2x=3 or x=-4\\x = 3/2 or x= -4\\x = 1.5 or- 4

6 0
3 years ago
The greater of two consecutive integers is 20 more than twice the smaller. find the integers.
Kipish [7]

Let x represent the smaller. Then x+1 is the greater of the two.

... x+1 = 2x +20

... 0 = x + 19 . . . . . subtract x+1

... x = -19

Your two integers are -19 and -18.

7 0
3 years ago
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