All categories

3 years ago

What is the value of 3(y+4)-(x-1) when x=3 and Y=2

Mathematics

2 answers:

Papessa [141]3 years ago

7 0

3(y + 4) - (x - 1)

x = 3

y = 2

First plug in the numbers into the variables. Or plug in 3 for "x" and 2 for "y" in the equation.

3(y + 4) - (x - 1)

3(2 + 4) - (3 - 1) Simplify the numbers in the parentheses

3(6) - (2)

18 - 2 = 16

monitta3 years ago

5 0

Put the values of x = 3 and y = 2 to the expression 3(y + 4) - (x - 1):

3(2 + 4) - (3 - 1) = 3(6) - (2) = 18 - 2 = 16

You might be interested in

At 3pm, the length of the shadow of a thin vertical pole standing on level ground is the same as the height of the pole. A while

aliya0001 [1]

Answer: The height of the pole is 175.97 ( approx )

Step-by-step explanation:

Let the height of the pole is x cm,

Also, let the angle of elevation of the sun to the pole at 3 pm is $\theta$

Thus, by the question,

$tan\theta = \frac{\text{ The height of the pole}}{\text{ The height of the shadow}}$

$\implies tan\theta = \frac{x}{x}$ ( at 3pm the height of shadow = height of the pole)

$\implies tan\theta = 1$

$\implies \theta = 45^{\circ}$

Again, according to the question,

When the angle of elevation is $(\theta - 12^{\circ})$ ,

The height of shadow = x + 95,

$\implies tan(45-12)^{\circ}=\frac{x}{x+95}$

$\implies tan 33^{\circ}=\frac{x}{x+95}$

$\implies tan 33^{\circ}x + 95\times tan33^{\circ}=x$

$\implies tan 33^{\circ}x - x = - 95\times tan33^{\circ}$

$\implies -0.3505924068 x = - 61.6937213538$

$x=175.969930202\approx 175.97\text{ cm}$

4 0

3 years ago

The total cost of eight tickets to a water park is $158.80. Each ticket costs the same amount. What is the cost of one ticket?

e-lub [12.9K]

Answer:

19.85

Step-by-step explanation:

158.80 divided by 8 is 19.85

8 0

3 years ago

Solve the equation 0.25 (8z - 4) = z + 8 - 2z

Andrew [12]

Distribute
2z-1=z+8-2z
add like terms
2z-1=-z+8
add z to both sides
3z-1=8
add 1 to both sides
3z=9
divide both sides by 3
z=3

4 0

3 years ago

Read 2 more answers

Please hurry !!!!!!!!!!!!!!!!!

Elan Coil [88]

I think it may be: 0.66666666666

I only looked it up on the internet.

7 0

3 years ago

There are 36 students in mrs.Keaton's sixth grade class. If 5/12 of her students are girls, how many girls are in the class?

olga_2 [115]

There are 15 girls in the class.

7 0

3 years ago

Read 2 more answers