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vredina [299]
3 years ago
14

Solve by factoring

Mathematics
2 answers:
Butoxors [25]3 years ago
7 0

Answer:

A. -5/4, 9

Step-by-step explanation:

The solution is in the picture

Travka [436]3 years ago
4 0

Answer:

A

Step-by-step explanation:

Given

4m² - 31m - 45 = 0

Consider the factors of the product of the coefficient of the m² term and the constant term which sum to give the coefficient of the m- term

product = 4 × - 45 = - 180 and sum = - 31

The factors are - 36 and + 5

Use these factors to split the m- term

4m² - 36m + 5m - 45 = 0 ( factor the first/second and third/fourth terms )

4m(m - 9) + 5(m - 9) = 0 ← factor out (m - 9) from each term

(m - 9)(4m + 5) = 0

Equate each factor to zero and solve for m

m - 9 = 0 ⇒ m = 9

4m + 5 = 0 ⇒ 4m = - 5 ⇒ m = - \frac{5}{4}

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snow_tiger [21]
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5 0
3 years ago
BRAINLIEST & 25 POINTS PLEASE HELP URGENT DUE IN 10 MINUTES.
Cerrena [4.2K]

Answer:

C) 24 adults

Step-by-step explanation:

Let A be the number of adults and C be the number of children.

If a ticket costs $8 per adult, we can express this as 8A

If a ticket costs $5 per child, we can express this as 5C

Combining the two expressions, we can write 8A+5C=272 as our first equation since the total amount of money collected is $272.

Our second equation would be A+C=40 since there are 40 people.

Now, we can take the second equation and write it as C=40-A so we can substitute the value of C into the first equation as 40-A so we only have to deal with one variable, the amount of adults that went to the theater.

The first equation now becomes 8A+5(40-A)=272 and is much easier to solve:

8A+5(40-A)=272

8A+200-5A=272

3A+200=272

3A=72

A=24

Therefore, there are 24 adults

5 0
2 years ago
What is the value of f(5) ?
qwelly [4]

Answer:

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Step-by-step explanation:

6 0
2 years ago
2. Given that set M = {Even numbers between 20 and 35), find n(m)​
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Step-by-step explanation:

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i.e.

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8 0
3 years ago
Read 2 more answers
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Mila [183]

Answer:

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Step-by-step explanation:

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Assuming he walks his dog 1/6th of an hour each week, he walks his dog 10 minutes per week.

If this is incorrect please tell me the complete question

3 0
2 years ago
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