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Goryan [66]
3 years ago
11

3х – 10 y = 14 3х - 9y = 15​

Mathematics
1 answer:
kow [346]3 years ago
5 0

Answer:

{x,y}={8,1}Step-by-step explanation: i just looked it up

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Kevin sold 2 unicycles and 1 bicycle for a total of $110. Greg sold 4 unicycles and 3 bicycles for a total cost of $268. What is
RSB [31]
Simultaneous Equations

2u +   b = $110
4u + 3b = $268

(x2) 4u + 2b = $220
(x1) 4u + 3b = $268

<em />If both the matching coefficients are the same, we subtract equation 2 from equation 1

2b - 3b = -b
$220 - $268 = $-48
-b = -$48
b = $48

If you want to find out what a unicycle costs...
Substitute b = $48 into the first equation
2u + $48 = $110
Balance the equation, whatever happens on one side, happens on the other.
2u + $48 (-$48) = $110 (-$48)
2u = $62
2u(/2) = $62(/2)
u = $31 
4 0
3 years ago
80/91 + 5/9 plz help
rusak2 [61]

Answer:

1.43467643468

Step-by-step explanation:

5 0
3 years ago
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WILL MARK BRAINLIEST IF GOTTEN RIGHT IF GOTTEN WRONG ON PURPOSE OR IF YOU DONT KNOW I WILL REPORT YOU :)
ludmilkaskok [199]

Answer:

I'm like 99.8 percent sure it's b5

4 0
3 years ago
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Suppose a triangle has sides 3, 4, and 6. Which of the following must be true? A: The triangle in question is not a right triang
Talja [164]

Answer:

A: The triangle in question is not a right triangle.

Step-by-step explanation:

If the triangle is a right triangle, then the Pythagorean theorem would hold

a^2 + b^2 = c^2

3^2 + 4^2 = 6^2

9+16 = 36

25 = 36

This is not true so this is not a right triangle

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An interior angel of a regular polygon has a measure of 120 degrees. What type of polygon is it
romanna [79]

Answer: The figure is a regular hexagon.

Step-by-step explanation:

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