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torisob [31]
2 years ago
12

Hi i need help with this

Mathematics
1 answer:
Orlov [11]2 years ago
5 0

answer: perimeter of the rectangle is 22 and the perimeter of the square is 8 making the perimeter of the shapes combined 30

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Solve the following system of equations. Enter the y-coordinate of the solution. Round your answer to the nearest tenth.
Alex17521 [72]
-2x + 6y = -34
-x + 3y = -17
x = 3y +17

Sub this into 1st eqn
5(3y + 17) + 2y = 21
15y + 85 + 2y =21
17y = -64
y = -3.7647 (to 5 sig. fig.)
y = -3.8 (to nearest tenth)

Sub y = -3.7647 into 2nd eqn
x = 3(-3.7647) +17
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7 0
3 years ago
10. The bill (including parts and labor) for the repair of an oven was $142. The cost
Lubov Fominskaja [6]

Total cost=$142

cost of parts=$62

cost paid for labour=$142-$62=$80

According to question,

》cost of labour per hr=$32

which can be written as,

》cost of labour/time=$32

Use cross multiplication,

》time=cost of labour/32

Since cost of labour is 80,

Time=80/32

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6 0
3 years ago
Solve this problem, and identify the percent, amount, and base.<br> What percent of 60 is 15?
ValentinkaMS [17]
First, you must understand the question. what % of 60 is 15, so I would write an equation to express this.

15 = 60x

From there, solve for x, so Divide by 60 on each side. The answer is 1/4, or 25%
7 0
3 years ago
The figures are similar. Find the missing length.
saw5 [17]

Step-by-step explanation:

<h2>Answer:-</h2><h3>Given ,</h3>

The figure is Similar.

Observation:-

Similar figures have similar sides. If we see carefully in smaller triangle, 3 has been added to each side and they are similar. We need to find y.

We have :-

5+3=8 as similar sides.

So, applying same algorithm,

y + 3 = 5

y = 5 - 3

\boxed{ \tt{y = 2 \ cm}}

is the answer.

Hope it helps :)

4 0
2 years ago
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horrorfan [7]
What’s the question?
6 0
2 years ago
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