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mars1129 [50]
2 years ago
8

Which ordered pair is a solution to the equation 3x+2y=6 ?

Mathematics
2 answers:
olya-2409 [2.1K]2 years ago
8 0
You need to use all of them until you find the answer so lets fo this!
a. (-10,-12) x=-10 y=-12
3x+2y=6
3*(-10)+2*(-12)=6
-30-24=6
-54=6
This is incorrect,now we try the othe options
b.(10,12) x=10 y=12
3x+2y=6
3*10+2*12=6
30+24=6
54=6
This is incorrect then we try the other option
c. (-10,12) x=-10 y=12
3x+2y=6
3*(-10)+2*12=6
-30+24=6
6=6
And this is the correct answer. So the answer is c. (-10,12)
stepladder [879]2 years ago
7 0
3(-10)+2(-12)=-54 That's not right!

3(10)+2(12)=54 That's also not right 

3(-10)+2(12)=-6 Close but not right

3(10)+2(-12)=6 is the correct answer

Your welcome love u


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Answer:

$42

Step-by-step explanation:

Given that,

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The markup rate at Game's Galore Super Store is 40%.

We need to find the price from the store. It can be calculated as follows :

C=30+\dfrac{40}{100}\times 30\\\\=30+12\\\\=\$42

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2 years ago
A sweater normally cost $35 there is a 25% discount what is sale price of the sweater? Include the $
Lerok [7]

Answer:

Sale price= $26.25

Step-by-step explanation:

Giving the following information:

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<u>To calculate the sale price of the sweater, we need to use the following formula:</u>

<u></u>

Sale price= selling price*(1 - discount rate)

Sale price= 35*(1 - 0.25)

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8 0
2 years ago
Marco bought $30 worth of football cards. If he bought 12 packs of cards, how much does each pack of cards cost?
Mandarinka [93]

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7 0
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3 years ago
I round to 900 I have twice as many hundreds as ones and all my digits are different but their sums are 18 can someone answer th
stellarik [79]

Answer:

The number of once is 9.1  

The number of hundreds is 8.9

Step-by-step explanation:

Given as :

The total of digits having ones and hundreds = 900

The sum of digits = 18

Let The number of ones digit = O

And The number of hundreds digit = H

So, According to question

H + O = 18             .........1

100 × H + 1 × O = 900          ........2

Solving the equation

( 100 × H - H ) + ( O - O ) = 900 - 18

Or, 99 H + 0 = 882

Or , 99 H = 882

∴   H = \frac{882}{99}

I.e H = 8.9

Put the value of H in eq 1

So, O = 18 - H

I.e  O = 18 - 8.9

∴    O = 9.1

So, number of once = 9.1

number of hundreds = 8.9

Hence The number of once is 9.1  and The number of hundreds is 8.9

Answer

4 0
3 years ago
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