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3 years ago

Solve the simuteneous equation4x+2y=6x-2y=9

Mathematics

2 answers:

Naya [18.7K]3 years ago

8 0

Answer:

find the same x-value and the same y-value that satisfies both ... 1 2 3. + 4 5 6. 5 7 9 ... + (4x – 2y + 9 = 0).

Step-by-step explanation:

GREYUIT [131]3 years ago

7 0

Answer:

x=3 y= -3

Step-by-step explanation:

Add the two equations to eliminate y

4x+2y=6

x-2y=9

-------------

5x = 15

Divide by 5

5x/5 = 15/5

x = 3

Now find y

x - 2y = 9

3 -2y = 9

Subtract 3 from each side

3-2y-3 = 9-3

-2y = 6

Divide by -2

-2y/-2 = 6/-2

y = -3

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3 years ago

if Judy used 45 ounces of orange juice concentrate to make the fruit punch how many ounces of lemonade concentrate does she use?

elena-s [515]

Answer:

25 ounces of Lemonade concentrate.

Step-by-step explanation:

Here is the complete question: Judy use 5 ounces of lemonade concentrate for every 9 ounce of orange juice. If f Judy used 45 ounces of orange juice concentrate to make the fruit punch how many ounces of lemonade concentrate does she use?

Given ratio that Judy use is 5 ounces of lemonade concentrate to 9 ounces of orange juice.

∴ ratio for lemonade concentrate to orange juice= $\frac{5}{9}$

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$\frac{Lemonade\ concentrate}{orange\ juice} = \frac{5\ ounces}{9\ ounces} = \frac{Lemonade\ concentrate}{45\ ounces}$

Cross multiplying both side.

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7 0

3 years ago

Help me as soo as possible please, the M in Mbc stands for “angle”

JulijaS [17]

Answer:

Step-by-step explanation:

Given is a picture of circle with angle

BOC =7x-11

Also angle of arc BC = angle BOC = 3x+53

Since both are the same equate the two

$7x-11=3x+534x=64x=16$

Now substitute this x value in any one of 3x+53 or 7x-11

Angle COB = angle BOC = 3x+53

= 48+53 = 101 degrees

-------------------------

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4 years ago

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3 years ago

Please help!! Local wildlife experts have begun to track the population of trout in their area. The function f represents the ap

jeka57 [31]

Answer:

Option C.

Step-by-step explanation:

We know that

f(t) = 1.5t + 50

represents the approximate population of trout in Sky Lake

And

g(t) = 0.1t^2 - 4t + 70

represents the approximate population of trout in Lake Cyan

The total trout population in the area is described as

f(t) + g(t)

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f(t) + g(t) = [1.5t + 50+ 0.1t^2 - 4t + 70]

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Option C.

6 0

3 years ago

Solve the simuteneous equation4x+2y=6x-2y=9​

Solve the simuteneous equation4x+2y=6x-2y=9