3 years ago

(c) Solve 5p + 7 = 3(4 - p)

Mathematics

2 answers:

lorasvet [3.4K]3 years ago

5 0

Step-by-step explanation:

5p + 7 = 3(4 - p)

5p + 7 = 12 -3p

5p + 3p= 12 - 7

8p = 5

p = 8/5

quester [9]3 years ago

4 0

This s the answer to your question . Pls mark brainliest

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ser-zykov [4K]

$3^{x + 2}$ - $3^{x}$ = $3^{x}$ * $3^{2}$ - $3^{x}$ = 9( $3^{x}$ ) - 1( $3^{x}$ ) = 8( $3^{x}$ )

$3^{x + 2}$ - $3^{x}$ = $\frac{8}{9}$

⇒ 8( $3^{x}$ ) = $\frac{8}{9}$

⇒ $3^{x}$ = $\frac{1}{9}$ <em>multiplied both sides by 8</em>

⇒ $3^{x}$ = $\frac{1}{3^{2} }$

⇒ $3^{x}$ = 3⁻²

⇒ x = -2

Answer: x = -2

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2 years ago

A and b are positive integers and a–b = 3. Evaluate the following: 27^ (1/3 b)/9^ (1/2 a)

maxonik [38]

Answer:

1/27

Step-by-step explanation:

27^(b/3)/9^(a/2) = (27^(1/3))^b/(9^(1/2))^a = (3^b)/(3^a) = 3^(b-a)

= 3^(-(a-b)) = 3^-3 = 1/3^3 = 1/27

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2 years ago

Which of the following represents the factorization of the trinomal below

seraphim [82]

C because you factor it out

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2 years ago

If a square is approximately 4.25 inches and there is 2.54 centimeters in a inch how long is each side of the square in centimet

ludmilkaskok [199]

10.795 square centimeters

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2 years ago

A high school math class has 28 students: 18 seniors and 10 juniors. What is the probability that four randomly selected student

aniked [119]

Answer:

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Step-by-step explanation:

Take the seniors and divide it by the total # of students, and you got your probability!

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2 years ago