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3 years ago

Is x+2y=6 2x-3y=26 have no solution,one solution, or infinity many solution

Mathematics

2 answers:

Lena [83]3 years ago

5 0

Answer:

Step-by-step explanation:

x + 2y = 6, multiply by 2 = 2x + 4y = 12

2nd equation: 2x - 3y = 26

It has one solution

Tatiana [17]3 years ago

3 0

Answer: One solution

Step-by-step explanation:

Convert both equations into slope-intercept form:

x+2y=6

2y=6-x

$y=\frac{6-x}{2}$

Slope = 6/2 = 3

2x-3y=26

y=2x-26/3

Slope = 2/3

Therefore, he system of equations have one solution because their slopes are not equal.

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A shoe store donated a percent of every sale to hospitals. The total sales were $8900 so the store donated $356. What percent of

kolezko [41]

Answer:

Step-by-step explanation:

Given data

The total sales= $8900

Donated amount=$356

Hence the percent donated is

=Donated amount/Total Sales *100

= 356/8900*100

=0.04*100

=4%

Hence the donated percent is 4%

3 0

3 years ago

Which expressions are equal to 750,000? Select all that apply. A. 75 × 10 3 B. 75 × 10 4 C. 75 × 10 5 D. 10 , 000 × 75 E. 100 ,

DiKsa [7]

Answer:

D should be the correct answer

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4 years ago

Given the formula A = 1/2 (a+b)h, find:

weeeeeb [17]

Answer:

11,495 and 6,030

Step-by-step explanation:

1. A=1/2(a+b)h

2A=(a+b)h

2Ah=a+b

2Ah-b=a

a=2×360×16-25

a=11,495

2. b=2Ah-a

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b=6,030

3 0

3 years ago

3x square - 6x + 3=0

solmaris [256]

Answer: 1

Step-by-step explanation:

First you need to multiply 3 x 3 (9), because that's all 3 squared means.

Now the equation should be 9x-6x+3=0

Next we need to combine like terms. Do 9x - 6x which should give you 3x

Now your equations should be 3x+3=0

Now for the somewhat harder part...

Under the three (the one without the x) write -3 and under the zero write the same thing. the +3-3 cancels out so just put a line or something across it.

0-3= -3

so now you should have...

3x=-3 ignore the 3x, at this point it's useless in getting the answer because it would cancel out.

-3 divided by -3 is 1 because a negative (-) divided by a negative (-) equals a positive (+).

The answer should be x = 1

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3 years ago

Nate has 5 green marbles and 3 red marbles. Select the ratios that compares the number of red marbles to the total number of mar

gtnhenbr [62]

Answer:

5 to 8 & 5/8

Step-by-step explanation:

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3 years ago