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scoray [572]
3 years ago
7

Solve for x and why please using these!!!

Mathematics
1 answer:
krok68 [10]3 years ago
4 0

Answer:

x = 40

y = 5

Step-by-step explanation:

4x = 2x+80\\2x = 80\\x = 40

Edit: Solve for Y

A straight line is 180 degrees so one side (the x side) is 160°, The Y side is 20, and  you can work backwards by -

8y - 20 = 20\\8y = 40\\y = 5

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You can buy an 8-pack of paper towels for $8.40 or a 12-pack for $12.36. Which is the better buy?
mixas84 [53]

Answer: 12 pack

Step-by-step explanation:

4 0
4 years ago
What is the value of X in the given triangle?
miskamm [114]
<h3>Answer: x = 65.4</h3>

==================================================

Work Shown:

cos(angle) = adjacent/hypotenuse

cos(x) = 5/12

x = arccos(5/12)

x = 65.375681647836 which is approximate

x = 65.4 after rounding to one decimal place

Make sure your calculator is in degree mode. The arccosine function is the same as the inverse cosine function (shortened to \cos^{-1} ).

4 0
3 years ago
For a given event, what is the result of dividing the number of successful outcomes by the number of possible outcomes?
Zielflug [23.3K]
Dividing the number of successful outcomes by the number of possible outcomes is the definition of the probability of the given event.

P(E)=n(E)/n(S)

example. let the Experiment be throwing a dice. The sample space, all the possible outcomes, is the set S={1, 2, 3, 4, 5, 6 }  and n(S)=6

Let the even E be: getting an even number. The successful outcomes set is  E {2, 4, 6 } and n(E)=3

So probability of getting an even number is P(E)=n(E)/n(S)=3/6=0.5


Answer: Probability of the given Event
5 0
3 years ago
Sheila needs to hire a baby sitter for the evening.
marissa [1.9K]

Answer: The answer is 21

5 0
3 years ago
7m-7-6m-16=1+4m please help
Mrrafil [7]
Make sure you put similar numbers (those with "m" and those without in this case) on one side and the others on the other side (also when you change, change the signs for each one moved to the opposite)

7m -4m - 6m = 7+1+16

- 3 m = 24
-3m/ -3 = 24/-3 (what you do to one side, you do to the other)

m = -8  (answer)


hope this helps
7 0
4 years ago
Read 2 more answers
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