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2 years ago

3(-4b+1) = 15 pls help asap

Mathematics

1 answer:

Evgen [1.6K]2 years ago

5 0

Answer:

b = -1

Step-by-step explanation:

3(-4b+1) = 15

multiply: -12b + 3 = 15

subtract 3 from 15: -12b = 12

divide: b = -1

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Factorise completely

Andreyy89

1. Number that adds up to -12 and multiplied by the same # that gives u -13. Set it up like this because both are negative so, u need 1 negative and 1 positive.
(x-13)(x+1)

2. Same rule applies. GCF
8y(4y+1)

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2 years ago

The ice cream shop offers 31 flavors. you order a double scoop cone how many different ways can the clerk put the ice cream on t

Lynna [10]

Answer:

465

Step-by-step explanation:

Since we are looking for the the number of combinations to have 2 different flavors in the ice cream, we can use the formula for combination.

$_{n}C_{k}=\dfrac{n!}{k!(n-k)!}$

Our variables are:

n = 31

k = 2

$_{31}C_{2}=\dfrac{31!}{2!(31-2)!}$

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The number of possible combinations of having 2 different flavors out of 31 different flavors is 465.

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3 years ago

Solve 5n – 7p + 3n = 25p for n.

saul85 [17]

5n – 7p + 3n = 25p

Combine like terms

8n - 7p = 25p

Add (7p) to both sides

8n - 7p + 7p = 25p + 7p

Simplifying

8n = 32p

Divide both sides by 8

8n / 8 = 32p / 8

Simplifying

n = 4p

7 0

3 years ago

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Of the 12 temporary employees in a certain company, 4 will be hired as permanent employees. If 5 of the 12 temporary employees a

Aliun [14]

Answer:

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Step-by-step explanation:

$5c_{3}*7c_{1}$

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3 years ago

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answer is

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3 years ago

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