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3 years ago

What is n equal to in the equation? 4(2n+5)=60

Mathematics

2 answers:

zzz [600]3 years ago

4 0

Answer:

n = 5

Step-by-step explanation:

First, you'd want to expand the entire equation to solve it.

4 (2n + 5) = 60

8n + 20 = 60

8n = 40

n = 5

I hope this helped!

murzikaleks [220]3 years ago

4 0

Answer:

n = 5

Step-by-step explanation:

4(2n+5)=60

2n+5=15 Divide both sides by 4

2n = 10 Subtract 5 from both sides

n = 5 Simplify and divide by 2 to isolate the variable

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After a storm damage is the community center sent Kiya and her friends hold fundraising events to help pay for repairs after the

andrew-mc [135]

Answer: the total amount of money that they wanted to raise is $2400

Step-by-step explanation:

Let x represent the total amount of money that Keelan and her friends want to raise.

After the first event they raise $240 which is 10% of the total amount they want to raise. The amount of money that raised after the first event is expressed as

10/100 × x = 0.1 × x = 0.1x

Therefore,

0.1x = 240

Dividing both sides of the equation by 0.1, it becomes

x = 240/0.1

x = $2400

7 0

3 years ago

Write in terms of i Simplify your answer as much as possible. square root of -48

grandymaker [24]

The square root of -48 is 2 because 2x2x2x2x2x2x is not -48

7 0

3 years ago

Joe has one book each for algebra, geometry, history, psychology, Spanish, English and Physics in his locker. How many different

Alisiya [41]

Answer:

There are 35 different sets of 3 books Joe could choose

Step-by-step explanation:

* Lets explain how to solve the problem

- Combination is a collection of the objects where the order doesn't

matter

- The formula for the number of possible combinations of r objects from

a set of n objects is nCr = n!/r!(n-r)!

- n! = n(n - 1)(n - 2)................. × 1

Lets solve the problem

- Joe has one book each for algebra, geometry, history, psychology,

Spanish, English and Physics in his locker

∴ He has seven books in the locker

- He wants to chose three of them

∵ The order is not important when he chose the books

∴ We will use the combination nCr to find how many different sets

of three books he can choose

- The total number of books is 7

∴ n = 7

∵ He chooses 3 of them

∴ r = 3

∵ 7C3 = 7!/3!(7 - 3)! = 7!/3!(4!)

∴ $7C3=\frac{(7)(6)(5)(4)(3)(2)(1)}{[(3)(2)(1)][(4)(3)(2)(1)]}=35$

∴ 7C3 = 35

* There are 35 different sets of 3 books Joe could choose

3 0

3 years ago

-2.7f + 0.3f - 16 - 4=

suter [353]

Answer:

-2.4f or -8 1/3

Step-by-step explanation:

I am not sure what should be at the end of the equal sign but if it is to simplify it would be -2.4f-20

If you want to solve then you get -2.4f=20 so f=-20/2.4 which equal to -8 1/3

3 0

2 years ago

Hey! i’ll give brainliest please help.

xeze [42]

I think the answer is A sorry if I’m wrong

7 0

2 years ago