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hram777 [196]
2 years ago
14

Solve this system of linear equations. Separate

Mathematics
1 answer:
dmitriy555 [2]2 years ago
8 0

Answer: x= -2 and y=7

Step-by-step explanation:

4×20x+11y=37

20×4x+3y=13

Using elimination method

80x+44y=148

80x+60y=260

-16y/-16=-112/-16

Y=7

Substitute for Y in equation (1)

20x+ 11(7)=37

20x+77=37

20x=37-77

20x/20= -40/20

X= -2

therefore, x=-2 and y=7

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atroni [7]

Answer:

it is in answer

Step-by-step explanation:

6 0
2 years ago
What is the solution to the equation -5(5-(a+1))=9-(5-(2a-3))?
Delicious77 [7]
A= -3 should be the answer

8 0
3 years ago
Phil has two rectangular prisms. The height of the second prism is 1/2 times the height of the first prism. The lengths and widt
Vesnalui [34]

The volume of the second prism is also ten times the volume of the first prism.

Let's assume that both prisms have:

width = 3 units

height = 4 units

Prism 1 length = 5 units

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Let's solve their respective volumes to compare...

Volume of prism 1 = length * width * height

                             = 5 * 3 * 4

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Volume of prism 2 = 50 * 3 * 4

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Prism 2/ prism 1 = 10

That means prism 2 is ten times the volume of prism 1.

6 0
2 years ago
What is the x-intercept of the line with this equation 1/3x+y= -15?<br><br> (_,0)
Sidana [21]

( - 45, 0)

to find the x-intercept let y = 0 in the equation

x = 0 → \frac{1}{3} x = - 15

multiply both sides by 3

x = 3 × - 15 = - 45

x-intercept = ( - 45, 0)


4 0
3 years ago
In 1924, the tempature in Fairfield, Montana, dropped from 63 degrees to 21 in 12 hour. What was the average hourly change in te
Drupady [299]
Find the change
the change is 63-21=42
42 degrees in 12 hours
we want to find xdegrees/1hour
42/12=3.5 degrees per hour
8 0
3 years ago
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