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3 years ago

4. PO

Mathematics

1 answer:

Blizzard [7]3 years ago

6 0

Answer:

She has 44 stamps left

Step-by-step explanation:

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-5x+2y=6<br> -x+2y=-2 <br> what is the solution to the system of equations?

dybincka [34]

Step-by-step explanation:

$- 5x + 2y = 6 \\ - x + 2y = - 2 \\ \\ - 5x + 2y - ( - x + 2y) = 6 - ( - 2) \\ - 5x + 2y + x - 2y = 6 + 2 \\ - 4x = 8 \\ \frac{ - 4x}{ - 4} = \frac{8}{ - 4 } \\ x = (- 2) \\ \\ -5x + 2y = 6 \\ - 5 \times - 2 + 2y = 6 \\ 10 + 2y = 6 \\ 2y = 6 - 10 \\ 2y = - 4 \\ \frac{2y}{2} = \frac{ - 4}{2} \\ y = - 2 \\ now \: lets \: see \: whether \\ this \: equation \: is \: correct. \\ - x + 2y = - 2 \\ - ( - 2) + 2 \times - 2 = - 2 \\ 2 + 2 \times - 2 = - 2 \\ 2 - 4 = - 2 \\ - 2 = - 2 \\ yes \: this \: equation \: is \\ correct.$

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3 years ago

What is the check digits (d) for the master card number 5130 7201 2608 209d <br> A)1 B)3 C)5 D)7

LenKa [72]

I hope this is just a maths problem coz if this is your card number I wouldn't be putting it on here for all to see.

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3 years ago

Expand to write an equivalent expression: 4(-8x+6y)

Naddika [18.5K]

Answer:

-32x + 24y

Step-by-step explanation:

4(-8x + 6y) ⇒ -32x + 24y

4 0

3 years ago

Read 2 more answers

How much will a person pay for 1.1 pounds of bananas at a price of $1.86 per pound?

pashok25 [27]

Answer:

$2.046

Step-by-step explanation: I think..don't take my word.

8 0

3 years ago

When 5 is added to a set of 3 numbers the mean increases to 4.6. What was the mean of the original 3 numbers?

SVEN [57.7K]

<h3>♫ - - - - - - - - - - - - - - - ~Hello There!~ - - - - - - - - - - - - - - - ♫</h3>

➷ Multiply 4.6 by 4 to get the sum of the numbers after 5 was added:

4.6 x 4 = 18.4

^ This is the new total

Subtract 5 from this:

18.4 - 5 = 13.4

Divide this value by 3 to get the original mean:

13.4/3 = 67/15

➶ Hope This Helps You!

➶ Good Luck (:

➶ Have A Great Day ^-^

↬ ʜᴀɴɴᴀʜ ♡

7 0

3 years ago