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Licemer1 [7]
2 years ago
6

Please help. I’ll mark you as brainliest if correct

Mathematics
1 answer:
saul85 [17]2 years ago
5 0

Answer:

25.12

Step-by-step explanation:

C = 2pir

2 * pi = 6.28, 6.28 * 4 = 25.12

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To eliminate the y-terms and solve for x in the fewest steps, by which constants should the equations be multiplied by before ad
vovikov84 [41]

Answer:

use -9 to multiply the first equation

use -4 to multiply the second equation.

Step-by-step explanation:

5x-4y=28.....eqn (1)×-9

3x-9y=30....eqn(2)×-4

-45x+36y=-252

-(-12x+36y=-120)

therefore, -33x÷33 =-132÷-33

x=4.

substitute (x=4) in any of the equation. I'm just going to use eqn 1.

5x-4y=28

5(4)-4y=28

20-4y=28

-4y =28-20

-4y÷-4 = 8÷-4

y=-2

so, x=4, y=-2

Note: for proof of answers substitute the answers for x and y and see if you have the same result...e.g

5(4)-4(-2)=28.

6 0
2 years ago
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If the factory has available 270 tires, 90 frames, and 170 pedals, which item would limit the amount of complete tricycles that
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Answer:

The pedals

Step-by-step explanation:

A tricycle requires 3 tires, 1 frame, and 2 pedals.

Divide all the amounts by the amounts needed for one tricycle.

270/3=90

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3 years ago
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Combine like terms 1,17-0,07a+(-3,92a).<br><br> HELPPPPPPP!!!
Anna35 [415]

Answer:

=1.17-3.99a

Step-by-step explanation:

1.17-0.07a+\left(-3.92a\right)

=1.17-0.07a-3.92a

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8 0
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A stem and leaf plot is not suitable in this data because this data is not kind of data for a stem and leaf plot.

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If you're finding out the mean for this plot You could use a stem and leaf plot.

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6x+6= x squared + x<br><br> How do I deal with the x squared when solving for x
lukranit [14]
I honestly think it has two solutions
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