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SOVA2 [1]
3 years ago
10

7-3x=-4(2+x) pls answer this first correct answer i will mark as brainliest

Mathematics
1 answer:
Zielflug [23.3K]3 years ago
7 0

Answer:

x = -15

Step-by-step explanation:

7 - 3x = -4(2+x)

7 - 3x = -8 -4x

7 + x = -8

x = -15

You might be interested in
Tamara says she used the GCF to factor the expression 21x + 56xy as 7(3x + 8xy). Is she correct? Explain.
cestrela7 [59]

Answer:

Tamara  incorrectly factored the whole expression.

Step-by-step explanation:

Note that

  • 21x=3·7·x;
  • 56xy=2·2·2·7·x·y.

Mark in bold all common factors, then GCF(21x,56xy)=7·x=7x.

Thus,

21x+56xy=7x(3+8y).

Hence, Tamara correctly found the GCF of numbers 21 and 56, but incorrectly factored the whole expression.

6 0
3 years ago
What are the solutions to x^2-5x+3=0?
Viktor [21]

Answer:

Step-by-step explanation:

You need to use the quadratic equation

x =  \frac{-b +/- \sqrt{b^2 - 4ac} }{2a}

Givens

  • a = 1
  • b = - 5
  • c = 3

x = \frac{5 +/- \sqrt{5^2 - 4a*1*3} }{2} \\

x =( 5 +/- sqrt(25 - 12) ) / 2

x = (5 +/- sqrt(13) )/2

x = (5 + sqrt(13) / 2

x = 4.303  rounded

x = (5 - sqrt(13) ) /2

x = .6972

4 0
3 years ago
The drama club is selling tickets to their play to raise money for the show's expenses. Each student ticket sells for $5 and eac
Westkost [7]

80 student tickets and 30 adult tickets must be sold to reach a $700 raise.

Since the drama club is selling tickets to their play to raise money for the show's expenses, and each student ticket sells for $ 5 and each adult ticket sells for $ 10, and the auditorium can hold a maximum of 110 people and the drama club must make a minimum of $ 700 from ticket sales to cover the show's costs, to determine one possible solution the following calculation must be performed:

  • 110 x 5 + 0 x 10 = 550
  • (700 - 550) / (10 - 5) = 150/5 = 30
  • 80 x 5 + 30 x 10 = 400 + 300 = 700

Therefore, 80 student tickets and 30 adult tickets must be sold to reach a $700 raise.

Learn more about maths in brainly.com/question/25901815

7 0
2 years ago
the ratio of cats to dogs is 5 to 4 if there are a total of 63 cats and dogs how many dogs are there and how many cats ate there
Illusion [34]

Answer:

Number of cats is (5/9)(63) = 35, and number of dogs is (4/9)(63) = 28

Step-by-step explanation:

The given ratio is 5 to 4.  Sum these up, obtaining 9.  Then (5/9) of the whole represents the number of cats, and (4/9) of the whole represents the number of dogs.

Number of cats is (5/9)(63) = 35, and

number of dogs is (4/9)(63) = 28

As a check:  35 + 28 = 63.

7 0
3 years ago
Read 2 more answers
Fx = 15x - 41x + 14 How do you figure this out?
PSYCHO15rus [73]
Ask a tutor to help
5 0
3 years ago
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