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gizmo_the_mogwai [7]
3 years ago
5

I need help plz

Mathematics
1 answer:
shusha [124]3 years ago
8 0

The solution for given linear equation systems is (3,-4).

Option: C

<u>Step-by-step explanation:</u>

The given equations are 5x+3y=3 and x+y= -1.

Let us isolate x value from equation 5x+3y=3.

5x = 3-3y.

x=\frac{3-3y}{5}.

Substitute this x value in equation x+y= -1.

\frac{3-3y}{5}+y=-1.

After taking LCM for the denominator,

\frac{3-3y+5y}{5}= -1.

3-3y+5y=-5.

2y=-8.

y=-4.

For x=\frac{3-3y}{5} substitute the y value.

x=\frac{3-3(-4)}{5}.

x=\frac{3+12}{5}.

x=\frac{15}{5}.

x=3.

∴ The solution is (3,-4).

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The roof of this garden shed has a gradient of 0.35. find the height of the shed​
Ilya [14]

The height of the shed is 2.325 m

The complete question is

The roof of a lean-to-garden shed has a gradient of 0.35.find the height....they have given the base as 1.5m and a shorter height 1.8m its like a house

<h3>What is a right Triangle ?</h3>

In a Triangle when one angle is 90 degree , the triangle is called Right Triangle .

Structure of the house is a right triangle with base = 1.5m

(height of that triangle)/1.5 = 35/100

height of that triangle = 1.5*0.35 = 0.5250

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The height of the shed is 2.325 m.

To know more about Right Triangle

brainly.com/question/6322314

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