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oksano4ka [1.4K]
2 years ago
12

Two classes at Liberty Middle School are setting up imaginary banks for an economics project. Class 1 has $50 in a savings accou

nt and makes a $5 deposit each day. Class 2 has $110 in a savings account and makes a $5 withdrawal each day. After how many days will both classes have the same amount of money in their savings accounts?
Mathematics
1 answer:
ivolga24 [154]2 years ago
6 0
In 2 days, class 1 has 60 and class 2 has 100, in 4 days, class 1 has 70 and class 2 will have 90, in 6 days both classes will have 80. so 6 days is the answer
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Answer:

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Step-by-step explanation:

A) (-1’,1‘)

B) (-1’,-2’)

C) (3’,-2’)

D) (3’,2’)

5 0
3 years ago
How do you solve for x a=2x+6xz
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a = 2x + 6xz

a = x(2 + 6z) <em>factored out "x" on right side</em>

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3 years ago
a recipe called for 2 cups or liquid, which includes 1/4 cups molasses. What fraction of the liquid in the recipe is molasses?
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3 years ago
I'm having trouble figuring out how to find the right symbol for this problem √9=6 ? 3​
bearhunter [10]

Answer:

It's a - (minus) sign.

Step-by-step explanation:

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5 0
3 years ago
Please help!? 5 Stars! :0 :(
zvonat [6]

OK.  These problems are easy if you know the quadratic formula,
and they're impossible if you don't.

Here's the quadratic formula:

When the equation is in the form of      Ax² + Bx + C = 0

then                    x =  [ -B plus or minus √(B²-4AC) ] / 2A

I'm sure that formula is in your text or your study notes,
right before these questions.  You should cut it out or
copy it, and tape it inside the cover of your notebook.
Then, you'll always have it when you need it, until
you have it memorized and can rattle it off.

The first question says        3x²  +  5x  +  2  = 0

Is this in the form of             Ax²  +  Bx  +  C  = 0    ?

             Yes !                    A=3      B=5   C=2

             so you can use the quadratic formula to solve it.

            x =  [ -B plus or minus √(B²-4AC) ] / 2A

               =  [ -5 plus or minus √(5² - 4·3·2) ] / 2·3

               =  [ -5 plus or minus √(25 - 24)  ]  /  6

               =  [  -5 plus or minus  √1          ]  /  6

           x  =        -4 / 6  =  -2/3
and
           x  =        -6 / 6  =  -1 .    
_______________________________________

The second question says

                                         4x²  +  5x  -  1 = 0

Is this in the form of          Ax²  +  Bx + C = 0  ?

           Yes it is !            A=4     B=5   C= -1  

         so you can use the quadratic formula to solve it.

            x =  [ -B plus or minus √(B²-4AC) ] / 2A

Now, you take it from here.

6 0
3 years ago
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