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lbvjy [14]
3 years ago
14

A total of h males and (h - 2) females visit the museum on a certain day. If total of visitors for that day is 80, what is the v

alue of h? A. 38 С. 40 B. 39 D. 41​
Mathematics
1 answer:
Akimi4 [234]3 years ago
3 0

Given:

Number of males = h

Number of females = (h-2)

Total number of visitors = 80

To find:

The value of h.

Solution:

We have,

Number of males = h

Number of females = (h-2)

So, the total number of visitors is:

Total=h+(h-2)

Total=2h-2

It is given that the total number of visitors is 80. So,

2h-2=80

2h=80+2

2h=82

Divide both sides by 2.

h=\dfrac{82}{2}

h=41

Therefore, the correct option is D.

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What is 8 - 3x > -25 because i have been wondering all day
Svetllana [295]

Answer:

8 - 3x > -25 : \left[\begin{array}{ccc}solution: x < 11\\Interval Notation:(-\infty,11)\end{array}\right]

Step-by-step explanation:

8-3x>-25

Subtract 8 from both sides:

8-3x-8>-25-8

Simplify:

-3x>-33

Multiply both sides by -1 (reverse the inequality):

\left(-3x\right)\left(-1\right)

Simplify:

3x

Divide both sides by 3 :

\frac{3x}{3}

Simplify:

x < 11

Hope I helped. If so, may I get brainliest and a thanks?

Thank you, have a good day! =)

8 0
3 years ago
A line contains the points (10,7) and (10,-8). Write the equation of the line
vagabundo [1.1K]

Given two points (x_1, y_1) and (x_2, y_2), the equation of the line passing through them is

\dfrac{x-x_2}{x_1-x_2}=\dfrac{y-y_2}{y_1-y_2}

This formula, however, only works if the points don't share any of the two coordinates. Otherwise, one of the two conditions is true:

x_1=x_2,\quad y_1=y_2

And at least one of the denominators in the formula above will vanish.

So, if two points share the same x coordinate, they lie on the vertical line x=k, where k is the shared x coordinate.

Similarly, if two points share the same y coordinate, they lie on the horizontal line y=k, where k is the shared y coordinate.

In your case, the x coordinate is the same, so the points lie on the vertical line x=10.

4 0
3 years ago
PLESEEE HELP I WILL GIVE THE BRAINLIEST TO THE BEST ANWSERS
miss Akunina [59]
The answer to the first question is D.)

The 6 in front of the parentheses modifies both 'x' and 3

The answer to the second question is D.)

When you plug 4 into the equation, you get 14

3(4) + 2 = 14
12 + 2 = 14
14=14

Hope this helps!
6 0
3 years ago
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The measures of three angles of a triangle are given by (8x - 5), (2x)º, and (3x – 10). What is the measure of the largest angle
zhannawk [14.2K]

Answer: 115°

Step-by-step explanation:

We should note that the sum of the angles that are in a triangle is equal to 180°, therefore we will add the angles given and equate them to 180°. This will be:

(8x - 5) + (2x) + (3x - 10) = 180

8x - 5 + 2x + 3x - 10 = 180

Collect like terms

8x + 2x + 3x = 180 + 5 + 10

13x = 195

x = 195/13

x = 15

The angles are:

8x - 5 = 8(15) - 5 = 120 - 5 = 115°

2x = 2(15) = 30°

3x - 10 = 3(15) - 10 = 45 - 10 = 35°

Therefore, the largest angle is 115°

3 0
3 years ago
0.5 km = M <br><br> Pls help me!!
Fudgin [204]

Answer:

500

Step-by-step explanation:

8 0
3 years ago
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