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ratelena [41]
3 years ago
7

If (angle)1 = 7x and (angle)4 = 3x + 20, what is the value of x?

Mathematics
2 answers:
Semenov [28]3 years ago
7 0
The value of x is 5. Angle one and four are vertical. You can do this by writing 7x = 3x + 20. Isolate the variable by moving 3x to the other side. If you do this, 3x becomes negative, and you end up with 7x-3x = 20 --> 4x = 20.
x=5.
FrozenT [24]3 years ago
4 0
m\angle 1=m\angle4\\\\therefore:\\\\7x=3x+20\ \ \ |-3x\\\\4x=20\ \ \ |:4\\\\x=5

Answer: 5

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-3(y-50)=24<br><br> Plz help -sob-
Leni [432]

<u><em>Answer: y=42</em></u>

Step-by-step explanation:

division property of equality is dividing both sides of an equation by the same non-zero number does not change the equation.

divide by -3 both sides of an equation.

-3(y-50)/-3=24/-3

simplify.

y-50=-8

add 50 both sides of an equation.

y-50+50=-8+50

simplify.

-8+50=42

50-8=42

42+8=50

y=42

Hope this helps!

Thanks!

Have a great day!

6 0
3 years ago
Dylan bought 3 identical shirts online for a total cost of $71.83 including a flat rate of $7.99 for shipping. Drag numbers to c
Vesnalui [34]

Answer:

3s + 7.99 = 71.83

Step-by-step explanation:

Yeah, algebra sure confused me the first time I took it. I had a much more patient and engaging teacher the second time!

How would we find out in real life how much each shirt cost? We'd subtract 7.99 from 71.83 and divide the difference by 3, right??

Let's work that backward. Let's say a shirt cost $6. Three would cost $3(6), or $18. Since each shirt costs $s, our price for 3 shirts is $3s. We have to add shipping to get a total, which we are given. When writing an equation, we leave out labels like $ or meters or books or whatever.

3 0
3 years ago
Using what you have learned about solving systems of equations, find the number that represents the apple, banana, and cherry.
erica [24]

it would be convenient if you actually give us the equation

8 0
3 years ago
Dr. Jane is studying the growing population of a species of jellyfish in a body of water. Each year, she records the population
olya-2409 [2.1K]

Answer:

983040

Step-by-step explanation:

Second Year : 15x4=60

Third Year : 60x4=240

Fourth Year : 240x4=960

Fifth Year : 960x4=3840

Sixth Year : 3840x4=15360

Seventh Year : 15360x4 = 61440

Eighth Year: 61440x4=245760

Ninth Year : 245760x4= 983040

4 0
3 years ago
Read 2 more answers
Which expression is equivalent to the given expression?
notka56 [123]
The answer is C.x(13-29)
6 0
3 years ago
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