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3 years ago

80-2w less than or equal to 50

Mathematics

1 answer:

Tcecarenko [31]3 years ago

8 0

Answer:

w≥15

Step-by-step explanation:

Subtract 80 from both sides to get -2w≤-30. Divide both sides by -2. Because it is negative, flip it. You will get w≥15.

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What is the value of x and how do you know

Nookie1986 [14]

Answer:

x=35°

Step-by-step explanation:

So first, recall that the interior angles of a triangle must total 180°.

The sum of the angles for the given triangle can be described by:

$110+x+x\\=2x+110$

Since the total must equal 180°, set the expression equal to 180°.

$2x+110=180$

To find the value of x, we just need to solve for x.

To start, subtract 110 from both sides. The 110s on the left cancels:

$(2x+110)-110=(180)-110\\2x=70$

Now, divide both sides by 2. The 2s on the left cancel.

$\frac{(2x)}{2}=\frac{(70)}{2}\\ x=35 \textdegree$

Therefore, the value of x is 35°.

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3 years ago

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Solve for x: 2 over 3 (x − 4) = 2x. 2 −2 −8 −4

KIM [24]

Distribute 2/3 to the parentheses on the left side, combine like terms. 1 1/3 x= -2 2/3. Final answer is -2

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3 years ago

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Find the x- and y-intercepts of the parabola y=x2+10x+4

Nuetrik [128]

Answer:

x-intercepts: -5 +/- $\sqrt{21}$ . y-intercept: 4

Step-by-step explanation:

For x-intercepts use the quadratic equation

$x= (-b +/-\sqrt{b^2-4ac} )/2a$

Fill in your values:

$x= (-10 +/-\sqrt{100-16} )/2$

And solve

$x=-5 +/- \sqrt{21}$

For y-intercepts set x=0 and solve. In this case, setting x= 0 gives you y=4.

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2 years ago

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Kisachek [45]

Answer:

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3 years ago

If a container of liquid contains 40 oz of solution, what is the number of ounces of pure acid if the given solution contains t

Anna11 [10]

Answer:

(d) 60% hope this helped

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