All categories

3 years ago

Help ,with number 9, please

Mathematics

1 answer:

sleet_krkn [62]3 years ago

7 0

9 is linear. Rearrange to get into standard line format

2x + 3y = 5
3y = -2x + 5
y = -2/3x + 5/3

Now, plot a point at 5/3 on the y axis. Go down 2 and right 3 and put another point
Then draw a line running through both points.

You might be interested in

What is the solution to the following system? x+y+z=6 x-y+z=8 x+y-z=0

Ghella [55]

I don't really know if this is correct but I think it is x+y+z=14

4 0

3 years ago

Read 2 more answers

If i stands for income and e stands for expenses, what is the formula for p, profits?

Zarrin [17]

Profit is calculated by subtracting the expenses from the income. So:
p = i - e

3 0

3 years ago

#19 please I’m literally failing math

ankoles [38]

Answer:

$51.12

Step-by-step explanation:

Hello there!

In number 19, we want to find the total price of a sweatshirt that costs $48 dollars but has 6.5% sales tax

Sales tax is a small percentage of the cost of an item that is added to items when they are being sold.

In this problem, 6.5% of the cost of the sweatshirt will be added to the cost of the sweatshirt in the form of sales tax. The price of the sweatshirt plus the amount in sales tax will be the total cost of the sweatshirt.

Translating that as an equation,

48 + 48*6.5%=total cost

You can calculate 48*6.5% as $\frac{48*6.5}{100}$ , which is equal to 3.12

So that means that $3.12 will be added to the cost of the sweatshirt.

Therefore,

48 + 3.12=$51.12, which will be the total cost of the sweatshirt, including sales tax

Hope this helps!

7 0

3 years ago

What is −5/8÷9 1/0 ? −25/36 a −91/6 b −35/80 c −1/36 d

Alla [95]

Answer:

Step-by-step explanation:

3 0

3 years ago

Which expression can be used to find the surface area of the following square pyramid? I DONT KNOW HOW TO PUT A PHOTO ON PC!!! b

chubhunter [2.5K]

Answer:

40 or 16+6+6+6+6

Step-by-step explanation:

To find the surface area of a 3d figure, we can imagine all of its faces laid down on a flat plane. In this case, we would have a square, and four congruent triangles. Now all we have to do is find the areas of each shape and add them up.

4 is the base of the pyramid, so it's also the square's side length. Since a square has four equal sides, our square's length and width are both 4.

4*4 = 16

For every triangle we have, the base is 4 and the height is 3. The area of a triangle can be found using the formula A=(bh)/2. We plug in the values:

A = (4*3)/2

A = (12)/2

A = 6

Since we have 4 triangles, the surface area is:

16+6+6+6+6 = 40

7 0

4 years ago