All categories

2 years ago

- 3x-4y=31 -2x + y = 6 Solve the system(by substitution)

Mathematics

1 answer:

Aleks [24]2 years ago

5 0

Answer:

x = -5

y = -4

Step-by-step explanation:

You might be interested in

Can someone help me out with this?

Tanya [424]

Answer:thats a triangle

Step-by-step explanation:

5 0

2 years ago

Read 2 more answers

A candy store called "Sugar" built a giant sugar cube out of wood to hang above the entrance to their store. It took 545454 feet

DedPeter [7]

Answer:

The volume inside the giant sugar cube is 27 cubic feet.

Step-by-step explanation:

It took 54 feet² of material to build the giant sugar cube. That means, the total surface area of the cube is 54 feet²

Formula for surface area of a cube is: $S= 6a^2$ , where $a$ is the length of each edge of the cube.

So, we will get.........

$6a^2=54\\ \\ a^2= \frac{54}{6}=9 \\ \\a= \sqrt{9}= 3$

Now, the volume of the cube will be: $V= a^3= (3)^3 = 27$ feet³

Thus, the volume inside the giant sugar cube is 27 cubic feet.

3 0

2 years ago

Find the average of: 15, 8, -22, 24, -9, -18, 16

trasher [3.6K]

The average is 2. To find the average you add all the numbers then divide the sum by the total amount of numbers.

5 0

3 years ago

Read 2 more answers

Explain how to tell if a number can. be divided by 10 evenly

maxonik [38]

Every number that has 0 as last digit and isn't decimal number, can be divided by 10 without remainder. It works for both positive or negative numbers. If last digit is different from 0, you will have remainder equal to that last digit. Even number 0 is divisible by 10 (the answer is 0 of course) because its last and only digit is 0.

7 0

3 years ago

Help mehelp mehelp mehelp mehelp mehelp me

Bas_tet [7]

Step-by-step explanation:

use Pythagoras theorem,

${a}^{2} + {b}^{2} = {c}^{2}$

${6}^{2} + {8}^{2} = {c}^{2} \\ 36 + 64 = {c}^{2} \\ c = \sqrt{100 } \\ c = 10$

6 0

2 years ago

Read 2 more answers