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Licemer1 [7]
3 years ago
11

Find the value of x in each case:

Mathematics
2 answers:
morpeh [17]3 years ago
5 0

Answer:

x=15

Step-by-step explanation:

5x+(180-9x)+(180-8x)=180

total of a triangle angles is 180

MrRissso [65]3 years ago
3 0

Answer:

15°

Step-by-step explanation:

Step 1:

180° - 8x + 5x + 180° - 9x = 180°    Sum of Triangle

Step 2:

360° - 12x = 180°     Algerbra

Step 3:

- 12x = 180°      Algerbra

Step 4:

12x = 180° Algerbra

Answer:

x = 15°

Hope This Helps :)

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The MoviePlex theater sold 1,456 tickets. The theater sold 6 times as many regular price tickets as it sold discount tickets. Ma
Lady bird [3.3K]

Jonah is the one that is correct because 1/6th of 1248 is 208. Then you add 1248 and 208 which is 1456 which is the correct answers

5 0
3 years ago
Which equation represents a line that is perpendicular to line PQ?
valentinak56 [21]

Answer:

B. y=1/3x+4

Step-by-step explanation:

Hi there!

We are given the line PQ and we want to find the line that is perpendicular to it

Perpendicular lines have slopes that are negative and reciprocal. When they are multiplied together, the result is -1

So first, let's find the slope of the line PQ

The point P is given as (-8, 7) and the point Q is given as (-4, -5)

The formula for the slope calculated from two points is \frac{y_2-y_1}{x_2-x_1} where (x_{1} y_1) and (x_2, y_2) are points

We have the needed information for the slope, but let's label the values of the points to avoid any confusion

x1=-8

y1=7

x2=-4

y2=-5

Now substitute into the formula (m is the slope, and remember: the formula contains SUBTRACTION):

m=\frac{(-5-7)}{(-4--8)}

simplify

m=\frac{-5-7}{-4+8}

add

m=-12/4

divide

m=-3

So the slope of the line PQ is -3

As said above, perpendicular lines have slopes that have a product of -1

So to find the slope of the line perpendicular to PQ, use this formula:

-3m=-1

divide both sides by -3

m=1/3

The only line that has a slope of 1/3 is B (y=1/3x+4), so B is the answer.

Hope this helps!

3 0
3 years ago
Dwayne buys a pumpkin that weighs 12.65 pounds.To the nearest tenth of a pound,how much dose the pumpkin weigh?
seropon [69]
12.60 is the answer.
4 0
2 years ago
Read 2 more answers
Corey spends 16% of his salary on food each week. If his salary is $800 per week, how much does Corey spend on food each week?
Flura [38]

Answer:

128

Step-by-step explanation:

16% of 800 is 128

7 0
2 years ago
Jessica has $35. She gives 2/5 of her money to her sister. How much money did she give her sister?
Ber [7]
$14 - covert 2/5 to a decimal (or percentage) = 0.4 (40%) and then multiply by 35.
5 0
3 years ago
Read 2 more answers
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