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Airida [17]
3 years ago
11

−4x+7y=3 solve for x and y

Mathematics
1 answer:
kap26 [50]3 years ago
3 0
-4x+7y=3
-4x=3-7y
x=(3-7y)/4

-4x+7y=3
7y=3+4x
y=(3+4x)/7

Sorry if this is wrong!
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1.64 as a mixed number in simplest form
garri49 [273]
By taking a look at 1.64, you can already tell the 1 will be the whole number in the fraction. So let's focus on .64. 0.64 is in the hundredths place value, so the denominator will be 100. The unsimplified fraction would be 1 64/100. To put this in simplest form we must divide 64 and 100. Let's start off with 2. 64/2 = 32 100/2 = 50 Let's continue until we can not divide by 2 anymore. 32/2=16 50/2 = 25 We can no longer divide by 2, howver there is not other number we can divide by both 16 and 25 evenly. The answer in simplest form is 1 16/25
4 0
3 years ago
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Please help I need to have this in by tonight
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3 years ago
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Which of these strategies would eliminate a variable in the system of equations? \begin{cases} 6x + 5y = 1 \\\\ 6x - 5y = 7 \end
frez [133]

Answer:

Option A and B are correct

Step-by-step explanation:

We have to add here

6x+5y=1.

6x-5y=7

sow e will get 12x=8 , x=8/12=2/3

Option A  is correct.

If We substract bottom from furst then

6x+5y=1

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10y=-6

y=-6/10=-3/5

we put y=-3/5 in any equation and find x

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5 0
3 years ago
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Fofino [41]
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8 0
3 years ago
Help? 5/12 + 5/8 <br><br> (spam cause i need 20 characters)
Jobisdone [24]

Answer:

1 1/24

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5/12 + 5/8

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5/8*3/3 = 15/24

Add the two converted numbers together

10/24 + 15/24

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Change from an improper fraction to a mixed number

24/24 + 1/24

1 1/24

3 0
4 years ago
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