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ale4655 [162]
3 years ago
5

3х +7 2х + 3 x= ? please help i’m almost done with school

Mathematics
1 answer:
Afina-wow [57]3 years ago
3 0

Answer:

34

Step-by-step explanation:

Add them together

5x+10=180

5x+10-10=180-10

5x=170

5x/5=170/5

x=34

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Is x = -4 a valid solution this linear equation?
HACTEHA [7]

Answer:

Yes, -4 is valid.

Step-by-step explanation:

Lets Find out.

So, using substitution:

2(-4)+9(-4-1)=8(2(-4)+2)-5\\-8-45=8(-6)-5\\-53=-48-5\\-53=-53

Yes, -4 is a valid solution.

Hope This Helps!

Stay Safe!

4 0
3 years ago
Read 2 more answers
What is the value of y ?
Lerok [7]

Answer:

y = 6

Step-by-step explanation:

Formula

Chords intersect in such a way that QU * SU = RU * TU

Givens

  • QU = 8
  • SU = y
  • RU = 12
  • TU = 4

Solution

  • 8 * y = 12 * 4
  • 8y   = 48
  • 8y/8 = 48/8
  • y = 6

6 0
4 years ago
This venn diagram shows sports played by 10 students what is p
Rainbow [258]

P(A | B) is 2/10 = 0.2.

<h3>What is P(A | B) ?</h3>

P(A | B) means the probability that a students pays both basketball and football. It is the intersection of both circles on the venn diagram.

P(A | B) = number of students that play both games / total number of students

2/10 = 0.2

Please find attached the complete question. To learn more about venn diagrams, please check: brainly.com/question/13192210

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8 0
3 years ago
Which line is the same as cd in the figure below
shtirl [24]

Answer: A.

Step-by-step explanation: if you look close enough, you can see exactly how long it is, and see that it does also have the two arrows along with it, but it’s the exact same just tilted a little bit but trust me I believe he correct answer is A.

8 0
2 years ago
Needing help with these 2 problems
UNO [17]

Answer:

15) 3.2

17) 13.4

Step-by-step explanation:

To find the missing lengths, you need to use the Pythagorean theorem:

a² + b² = c²

In this form, "c" represents the length of the hypotenuse and "a" and "b" represent the lengths of the other two sides.

You are trying to find one of the side lengths (not the hypotenuse) in 15). To find the other length, you can plug the other values into the equation and simplify to find "b".

15)    a = 4.1     c = 5.2

a² + b² = c²                                    <----- Pythagreom Theorem

(4.1)² + b² = (5.2)²                          <----- Plug values in for "a" and "c"

16.81 + b² = 27.04                         <----- Raise numbers to the power of 2

b² = 10.23                                      <----- Subtract 16.81 from both sides

b = 3.2                                           <----- Take the square root of both sides

You are trying to find the hypotenuse in 17). Since you have been given the lengths of the other sides, you can plug them into the equations and simplify to find "c".

17)   a = 4.4      b = 12.7

a² + b² = c²                                      <----- Pythagreom Theorem

(4.4)² + (12.7)² = c²                           <----- Plug values in for "a" and "b"

19.36 + 161.29 = c²                          <----- Raise numbers to the power of 2

180.65 = c²                                      <----- Add

13.4 = c                                            <----- Take the square root of both sides

5 0
2 years ago
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