All categories

2 years ago

Evaluate. 2x-y when x=5 and y= -5

Mathematics

2 answers:

Elina [12.6K]2 years ago

7 0

$2x - y \\ 2(5) - ( - 5) \\ 10 + 5 \\ 15$

PLEASE GIVE BRAINLIEST

vfiekz [6]2 years ago

3 0

I believe It is 15. Because you have to substitute the x and y values into the equation. 2(5) - (-5). 10-(-5). 10+5=15

You might be interested in

Find an equation for the line that passes through the points (-4, -1) and (6, 3)

skad [1K]

Answer:

y=2/5x+3/5

Step-by-step explanation:

Use the slope formula to get the slope:

m=4/10

m=2/5

The y intercept is 3/5

The equation is y=2/5x+3/5

3 0

3 years ago

Read 2 more answers

For the points in the table, does pressure vary directly with volume? If so, identify k and write an equation. No, this is not a

wel

Can't see the table but direct variation is: y = kx
So if the output is some constant multiple which could be positive, negative or fraction then yes it is direct variation. So just divide a couple y/x = k to see what you get.

7 0

3 years ago

Read 2 more answers

The scatter plot shows the relationship betweeen the number of hours students spend watching television and the numer of hours t

rosijanka [135]

(0,9) it represents the incline of the line

5 0

3 years ago

Read 2 more answers

What type of triangle is given by the points D(1,1), E(3,8) and F(5,1).

Vlad1618 [11]

Answer:

when the copper is gold and triangle is isocesles triangles what is your number?

Step-by-step explanation:

the answer is i leb ye

8 0

2 years ago

Dennis is cutting construction paper into rectangles for a project he needs to cut one rectangle that is 12 inches times 15 1/4

Nataly_w [17]

Answer:

Dennis need 288.91 square inches of construction paper for his project.

Step-by-step explanation:

Dennis is cutting construction paper into rectangles for a project.

He needs to cut one rectangle that is 12 inches times 15 1/4 inches

First convert the mixed fraction to improper fraction

$15\frac{1}{4} = \frac{(15\times4) + 1}{4} = \frac{61}{4}$

So the area of 1st rectangle is

$A_1 = 12\times \frac{61}{4} = 183 \: in^{2}$

He needs to cut another rectangle that is 10 1/3"" x 10 1/4""

The symbol " means inches

First convert the mixed fraction to improper fraction

$10\frac{1}{3} = \frac{(10\times3) + 1}{3} = \frac{31}{3}$

$10\frac{1}{4} = \frac{(10\times4) + 1}{4} = \frac{41}{4}$

So the area of 2nd rectangle is

$A_2 = \frac{31}{3}\times \frac{41}{4} = 105.91 \: in^{2}$

The total construction paper needed for this project is

$A = A_1 + A_2\\\\A = 183 + 105.91\\\\A = 288.91 \: in^{2}$

Therefore, Dennis need 288.91 square inches of construction paper for his project.

6 0

3 years ago