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MariettaO [177]
3 years ago
6

PLEASE HELP!! WILL MARK BRAINLIEST AND THANK YOU!!! IM DESPERATE!!!!

Mathematics
2 answers:
777dan777 [17]3 years ago
6 0
Answer: 91 in ²

This has to be answered in three parts:

1) Area of square
2) Area of triangle
3) Addition of both areas

Let’s start with step one: area of square. The easiest way to solve this sort of equation is by breaking the shape into two easier shapes and finding the area of both. I have attached an image below of how we will separate these shapes

Let’s find the area of the square.

Step 1) Write formula

l • w = a

Step 2) Fill in information and solve

7 • 11 = 77

That’s the area of the square! Now let’s move onto the triangle

Step 1) Write formula

1/2(b•h)

Step 2) Fill in information and solve

(Though it doesn’t say the base, we can find this by subtracting 15 and 11)

1/2(4•7)

1/2 (28)=14

That’s the area of the triangle side! Now let’s add these together for the final answer

Final Step: Finding final area

To find the area of the whole shape, let’s add these two together

Triangle: 14
Square:77

14+77=91

Hope this is right and it helps comment below for more questions :)
mel-nik [20]3 years ago
5 0

Answer:

91 in²

Step-by-step explanation:

Area of tarpezoid = (sum of both bases x height) / 2

A = ((11 + 15) x 7) /2 = 91

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Step-by-step explanation:

Given,

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Let,

The number of hours worked by first mechanic = x

The number of hours worked by second mechanic = y

According to given statement;

x+y=25    Eqn 1

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95(x+y=25)\\95x+95y=2375\ \ \ \ Eqn\ 3

Subtracting Eqn 3 from Eqn 2

(95x+115y)-(95x+95y)=2675-2375\\95x+115y-95x-95y=300\\20y=300

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Putting y=15 in Eqn 1

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The first mechanic worked for 10 hours and the second mechanic worked for 15 hours.

Keywords: linear equation, elimination method

Learn more about elimination method at:

  • brainly.com/question/12700460
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Step-by-step explanation:

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