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3 years ago

What is the value of 4 x minus 7 when x = 4?

Mathematics

2 answers:

Stella [2.4K]3 years ago

7 0

Answer:

Step-by-step explanation:

4x - 7 ( x=4)

4 × 4 - 7

16 - 7

Stolb23 [73]3 years ago

6 0

Answer: 9

Step-by-step explanation: Here, we have the expression 4x - 7 and we want to evaluate the expression when x is equal to 4.

To evaluate an expression, we simply plug the value

of the variable into the expression and solve.

So here, since x is equal to 4, we have 4(4) - 7.

4(4) is equal to 16.

So we have 16 - 7 which is equal to 9.

So the value of our expression when x is equal to 4 is 9.

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16) What is the image of the point (-5, 2) under

vovangra [49]

Answer:

Step-by-step explanation:

Under the translation

(x, y ) → (x + 3, y - 4 )

Add 3 to the x-coordinate and subtract 4 from the y- coordinate of the original points, that is

(- 5, 2 ) → (- 5 + 3, 2 - 4 ) → (- 2, - 2 ) → C

3 0

3 years ago

Rewrite the expression 14m-(5+8m) without parentheses

JulijaS [17]

Answer:

14m-5-8m

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

Please help! 3 Questions please show how you solved the problem

Masteriza [31]

Answer:

1) $(-y^2-4y-8+4y^2+6y-3)$

2) $32x^5y^4z^2$

3) $x^3-9x^2+14x+24$

Step-by-step explanation:

Given the expression we have to simplify the expression

1) $(-y^2-4y-8)-(-4y^2-6y+3)$

⇒ $(-y^2-4y-8+4y^2+6y-3)$

Combining like terms, we get

⇒ $3y^2+2y-11$

2.) $(2x^2y^3z^2)(4xy.4x^2)$

⇒ $(2x^2y^3z^2)(16x^3y)$

⇒ $32x^5y^4z^2$

3.) $(x-4)(x^2-5x-6)$

⇒ $x^3-5x^2-6x-4x^2+20x+24$

⇒ $x^3-9x^2+14x+24$

5 0

3 years ago

In order to make money on lones, financial institutions are paid back more than they loan. suppose borrow $350,000 to buy a hous

Korolek [52]

1500.56 x 12 = 18006.72 per year

18006.72 x 30 = 540201.60

540201.60-350000 = 190201.60

5 0

3 years ago

432 tk. is divided amongst three workers A, B and C such that 8 times A's share is equal to 12 times B's share wich is equal to

Flura [38]

Answer:

A got 243 tk

Step-by-step explanation:

Supose the amount C got was "x"

12 times B's share is 6 times C's share, that would be:

B = 6x

Also, 8 times A's share is 12 times B's share, that would be:

8A = 12B

8A = 12(6x)

8A = 72x

A = 72x/8

A = 9x

Now, we can say:

A = 9x

B = 6x

C = x

We know total is 432, thus we can write and solve for x first:

A + B + C = 432

9x + 6x + x = 432

16x = 432

x = 432/16

x = 27

A got "9x", so plugging in x = 27, we know:

A got 9*27 = 243 tk

7 0

3 years ago