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3 years ago

What is the value of the x variable in the solution to the following system of equations?

Mathematics

2 answers:

Elina [12.6K]3 years ago

6 0

X=4 Using elimination method you get x=4 and y= -2

Mazyrski [523]3 years ago

5 0

Correct answer is A.

$3x + 2y = 8
\\2x + 3y = 2 
\\
\\9x+6y=24
\\-4x-6y=-4
\\
\\5x=20
\\x=4$

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The graph shows the motion of two cars starting at different places on a highway. Their speeds can be compared by comparing the

Mars2501 [29]

Answer:the dot goes in in the blue line in 0 and 150 just like the blue line

Step-by-step explanation:I hope you get what I mean

8 0

3 years ago

Increase the number 120 by 70%

Karo-lina-s [1.5K]

Multiply 120 by .7 then take the product and add it to 120.

3 0

3 years ago

A triangle was dilated by a scale factor of 6. If sin aº

Pavlova-9 [17]

Answer:

24 units

Step-by-step explanation:

A triangle was dilated by a scale factor of 6. If sin a° = four fifths and segment DE measures 30 units, how long is segment EF?

triangle DEF in which angle F is a right angle, angle D measures a degrees, and angle E measures b degrees

15.5 units

24 units

30 units

37.5 units

From the description:

angle D measures a degrees

opposite to angle D is side EF

side DE (which measures 30 units) is the hypotenuse of the triangle.

We also know that

$\sin (a) = \frac{4}{5}$

$\sin (a) = \frac{opposite}{hypotenuse}$

From definition:

$\sin (a) = \frac{opposite}{hypotenuse}$

Replacing:

$\frac{4}{5} =\frac{ EF}{DE} \\\\EF = \frac{4}{5} *DE\\\\EF = \frac{4}{5} *30 \\\\= 24 units$

8 0

4 years ago

Mr. Wong spent 2/3 of his workday selling products and the rest of his workday making phone calls. What fraction of his workday

tensa zangetsu [6.8K]

Answer:

1/3

Step-by-step explanation:

if he has spent 2/3 of his workday selling products that is almost his whole day. He has 1/3 of his workday left so he dedicated it to making calls for his company.

So you work if you subtract 2/3 from a whole that leaves you with 1/3 of your day left

6 0

3 years ago

Read 2 more answers

1. What is the slope intercept form for -3, and (4,2) SIMPLIFIED??

Ostrovityanka [42]

Answer:

Step-by-step explanation:

1. y - 2 = -3(x - 4)

y - 2 = -3x + 12

y = -3x + 14

2. y - 6 = -1/2(x + 5)

y - 6 = -1/2x - 5/2

y - 12/2= -1/2x - 5/2

y = -1/2x + 7/2

4 0

3 years ago