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Debora [2.8K]
3 years ago
6

Please help me. I don’t know how to do this I really need this answer.

Mathematics
1 answer:
Ainat [17]3 years ago
8 0
The answer is c.
I will explain

p - 2r = q

1. Move variable to the right by adding it’s opposites on both sides

p - 2r + 2r = q + 2r

2. Eliminate the opposites (-2r and +2r)

p = q + 2r

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Sales Tax in the state of Mathland is 8.5%. After buying school supplies, your total was $81.42, before tax. How much do you end
Lapatulllka [165]

Answer:

A

Step-by-step explanation:

8.5% of 81.42

8.5                 81.42           692.07

-------    X       ---------- =     -------------

100                     1                 100

divide 692.07/100 which gives you 6.9207

if you round it to the nearest hundredth you get 6.92

7 0
3 years ago
In a cash drawer there is $125 in $5 and $10 bills. The number of $10 bills is twice the number of $5 bills. How many of each ty
WINSTONCH [101]

Let us take number of $5 bills = x and

                   number of $10 bills  = y.

Give that "number of $10 bills is twice the number of $5 bills".

So, y is twice of x,

We can setup an equation.

y= 2x                      ............................... equation(1)

Total value of all bills = $125.

We can setup another equation,

5*(number of $5 bills) + 10*(number of $10 bills) =125.

5(x) +10(y) = 125                         ................................... equation(2)

Plugging y=2x in equation(2), we get

5(x) +10(2x) = 125   .

5x+20x = 125.

Adding like terms

25x = 125

Dividing both sides by 25.

25x /25 = 125/25

x= 5.

Plugging x=5 in first equation, we get

y= 2(5) = 10.

Therefore, number of number of $5 bills=5 bills  and number of $10 bills = 10 bills.


5 0
3 years ago
Evaluate.<br><br> 32−[(4+2×3)×2]<br><br> Thk u!
gulaghasi [49]

Answer:

here \: w e \: can \: use \: bodmas \\ 32 - ((4 + 2 \times 3) \times 2) \\ =  32 - (4 + 6) \times 2) \\  = 32 - 10 \times 2 \\  = 32 - 20 \\  = 12 \\ thank \: yuou

7 0
3 years ago
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Schach [20]
The people can paint about 3 rooms.
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3 years ago
Four times a number, subtracted from four, is twice the number. Find the number
lorasvet [3.4K]

well 4 x any number - from four is then 2 the number. you need to figure out what number you are using only then can you solve this equation
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