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g100num [7]
2 years ago
13

What is the solution for this system x+y=6 2x+4y=20

Mathematics
1 answer:
kykrilka [37]2 years ago
7 0

Answer:

It is a linear equation

solving by substitution method

x + y =6 ------ eqn 1

2x + 4y =20 -------- eqn 2

x = 6 - y ------ eqn 3

putting the value of x from eqn 3. into eqn 2.

2(6-y) +4y =20

12 - 2y + 4y =20

12 +2y =20

2y = 20-12

2y = 8

2y / 2 =8/2

y =4

put the value of y into eqn 3

x =6 - y

x = 6 - 4

x = 2

Therefore x = 2, y= 4

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Step-by-step explanation:

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Two similar triangular prisms have volumes of 27 square meters and 64 square meters.
Inessa [10]

Answer:

9/16

Step-by-step explanation:

First we need to know that the dimensions ratio, the surface area ratio and the volume ratio have the following relation:

volume ratio = dimension ratio ^3

surface area ratio = dimension ratio ^2

The volume ratio between small prism and the large prism is 27 / 64.

To find the dimensions ratio, we need to take the cubic root of the volume scale:

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8 0
2 years ago
3.602 × 10 − 4 thx luvs
lorasvet [3.4K]

♡ The Question ♡

- 3.602 × 10 − 4

*୨୧ ┈┈┈┈┈┈┈┈┈┈┈┈ ୨୧*

♡ The Answer ♡

- 32.02

*୨୧ ┈┈┈┈┈┈┈┈┈┈┈┈ ୨୧*

♡ The Explanation/Step-By-Step ♡

- 3.602 x 10 - 4

Multiply the numbers: 3.602 x 10 = 36.02

= 36.02 - 4

Subtract the numbers: 36.02 - 4 = 32.02!

= 32.02

*୨୧ ┈┈┈┈┈┈┈┈┈┈┈┈ ୨୧*

♡ Tips ♡

- No tips provided!

6 0
3 years ago
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Answer:50

Step-by-step explanation:

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