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2 years ago

Solve for x m<8 = 2x + 20

Mathematics

1 answer:

givi [52]2 years ago

5 0

Answer:

-6

Step-by-step explanation:

First, subtract 20 from both sides: $m < -12=2x$

Next, divide both sides by 2: $m < -6=x$

Finally, write the equation: $m < -6$

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What is the value of the expression below

natulia [17]

Answer:

a=2,b=4. (3a+b)=3*2+4=10.

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3 years ago

Determine the equation of the line shown in the graph:

mariarad [96]

The answer is D. "x = 5"

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4 years ago

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What are the solutions to 16x^2-12x=54? Select all the apply.

lesya692 [45]

Answer:

-3/2 or 9/4

Step-by-step explanation:

16x^2 - 12x = 54

Now, we take 54 to the left side. It leads the right side to become "0". As 54 is a positive, it will negative as we change the side.

16x^2 - 12x - 54 = 0

Dividing both the sides by 2, we get,

8x^2 - 6x - 27 = 0

Now, we use factorization method,

8x^2 + 12x - 18x - 27 = 0

or, 4x (2x + 3) - 9 (2x + 3) = 0

or, (2x + 3) (4x - 9) = 0

Now, 2x + 3 = 0; or, 4x - 9 = 0

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or, x = - (3÷2); or, x = (9÷4)

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4 0

4 years ago

David made a class banner out of a large rectangular piece of paper. He

spin [16.1K]

Given:

A triangular piece is cut out of a rectangular piece of paper to make the class banner.

To find:

The area of the class banner.

Solution:

The rectangular piece of paper is 14 inches long and $5+3=8$ inches wide.

From the given diagram, the triangle has a base length of the same 8 inches and has a height of $14-11=3$ inches long.

To determine the area of the banner, we subtract the area of the triangle from the area of the rectangle.

The area of a triangle $= \frac{1}{2} (b)(h).$

The area of the triangle $= \frac{1}{2} (8)(3) = 12$ square inches.

The area of a rectangle $= (l)(w).$

The area of the rectangle $= (14)(8)= 112$ square inches.

The area of the class banner $= 112-12=100$ square inches.

So the banner has an area of 100 square inches which is the first option.

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3 years ago

Use the Distributive Property to write and simplify an expression for the cost.

NNADVOKAT [17]

Answer:

240+30x

Step-by-step explanation:

240+30x because you multiply 30 x 8 and get 240 plus 30 x X and get 30x

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3 years ago

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