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algol [13]
3 years ago
11

If d = c-b / a-n , then wbat is the value of b?

Mathematics
1 answer:
Lera25 [3.4K]3 years ago
3 0

Answer:

Step-by-step explanation:

d = c-b / a-n

Make b the subject

d (a - n) = c - b

-b = d (a - n) / c

Divide both sides by - 1

-b / -1 = d (a - n) / c ÷ -1

b = d (a - n) / c × 1/-1

= d(a - n) / - c

= ad - an / - c

The options given doesn't match the final answer

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andreev551 [17]

Answer:

f(x)= -4x

Step-by-step explanation:

6 0
3 years ago
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Bernard is 5 times older than Victor. Victor is five years older than Peter. If the sum of their ages is 65 years, how old will
Iteru [2.4K]

Answer:

Victor's age after 7 years = 10+7

=> 17 years

7 0
3 years ago
Carlos is 5 less than 3 times his brother's age. Carlos' age is also 11 years older than his brother's age. How old is Carlos?​
mafiozo [28]
<h2>Systems of Equations Word Problems</h2>

To solve these questions, we can translate key words into operations.

  • <em>Older</em> = add
  • <em>Less</em> <em>than</em> = subtract

<h2>Solving the Question</h2>

We're given:

  • Carlos' age is 5 less than 3 times his brother's age
  • Carlos' age is 11 years higher than his brother's age

There are two variables present in this problem: Carlos' age and his brother's age.

  • Let Carlos' age equal <em>x</em>
  • Let his brother's age equal <em>y</em>

Translate the given information into equations:

  • Carlos' age is 5 less than 3 times his brother's age
    ⇒ 3y-5=x
  • Carlos' age is 11 years higher than his brother's age
    ⇒ y+11=x

We can solve for <em>y</em>, his brothers age, using substitution:

3y-5=y+11\\2y=16\\y=8

Now, solve for <em>x</em> by substituting <em>y</em> in either of the equations:

y+11=x\\8+11=x\\x=19

Therefore, Carlos is 19 years old.

<h2>Answer</h2>

Carlos is 19 years old.

8 0
2 years ago
BRAINLIEST IF CORRECT!
Alex Ar [27]

Answer:

1. b 14

2. a 21

3. c 24

4. d 6

Step-by-step explanation:

Divide the coefficient by the denominator of the fraction, then multiply by the numerator to find the simplified coefficient.

6 0
2 years ago
3y-12x=24 and goes through point (2,-6) . write your answer in y=mx+b
Masteriza [31]

Answer:

y= 4x+8

Step-by-step explanation:

Add 12x to both sides.

3y=24+12x

The equation is in standard form.

3y=12x+24

Divide both sides by 3.

3

3y

​

=

3

12x+24

​

Dividing by 3 undoes the multiplication by 3.

y=

3

12x+24

​

Divide 24+12x by 3.

y=4x+8

6 0
2 years ago
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