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kifflom [539]
3 years ago
14

Two fifth of a certain number plus two is equal to ten​

Mathematics
1 answer:
Fed [463]3 years ago
3 0

Answer:

that no. is 20

Step-by-step explanation:

let us take that certain no. as x

so

2/5. x +2=10

2x/5 = 10-2

2x = 8×5

x= 40/2

x= 20

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Given f(x) = x^2 - 5x, find f(x-3)
Hoochie [10]

Answer:

f(x-3)= x^2 -11x +24

Step-by-step explanation:

We want to find an equivalent expression for f(x-3)

To do this, we can simply substitute every 'x' variable in f(x) by 'x-3'

Therefore f(x-3)= (x-3)^2 -5*(x-3)

Lets re arrange the expression by grouping terms.

f(x-3)=x^2 - 6x +9 -5x + 15

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3 0
3 years ago
8n + 12 - 5n = 21<br> n=?
insens350 [35]

Answer:

n=3

Step-by-step explanation:

Simplifying

8n + 12 + -5n = 21

Reorder the terms:

12 + 8n + -5n = 21

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Solving

12 + 3n = 21

Solving for variable 'n'.

Move all terms containing n to the left, all other terms to the right.

Add '-12' to each side of the equation.

12 + -12 + 3n = 21 + -12

Combine like terms: 12 + -12 = 0

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3n = 21 + -12

Combine like terms: 21 + -12 = 9

3n = 9

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n = 3

Simplifying

n = 3

5 0
3 years ago
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What is two thousand,six hundred two in expanded form?
Taya2010 [7]

Answer:

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Step-by-step explanation:

expanded form is: way to write a number by adding the value of its digits

4 0
2 years ago
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Allushta [10]

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Step-by-step explanation:

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3 years ago
6th grade math i mark as brainliest​
Alinara [238K]

Answer:

16

Step-by-step explanation:

4*4

6 0
3 years ago
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