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Colt1911 [192]
3 years ago
12

How do I find the answer for this equation 20x+15y= 330, when x+y =18

Mathematics
1 answer:
Maru [420]3 years ago
6 0
U divide 330 by 15 and get the quotient then do the same thing to 20 and add the quotients together to solve for x and y
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Because triangle XYZ is a right triangle, the side
Nitella [24]

The final step is to determine the principal square root of both sides of the equation.

  • The triangle XYZ is a right triangle.
  • The sides "a" and "b" are the height and the base of the triangle.
  • The side "c" is the hypotenuse of the triangle.
  • The Pythagorean theorem, sometimes known as Pythagoras' theorem, is a basic relationship between a right triangle's three sides in Euclidean geometry. According to this statement, the areas of the squares on the other two sides add up to the size of the square whose side is the hypotenuse.
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1 year ago
What is a decimal that is equivalent to the expression (2 x 100) + (8 x 10) + (5 x 1) + (6 x 0.01) + (3 x 0.001).
Lana71 [14]

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285.061

Step-by-step explanation:

5 0
2 years ago
Substitution method x=-y <br> 8x+3y=40
Delvig [45]
The answer would be 16
4 0
2 years ago
Read 2 more answers
15/16 simplify lcd.
soldi70 [24.7K]

I think the answer you are looking for is 1

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4 0
3 years ago
Two bicyclists are 7/8 of the way through a mile long tunnel when a train approaches the closer end at 40 mph. The riders take o
Anastaziya [24]

Answer:

the cyclists rode at 35 mph

Step-by-step explanation:

Assuming that the cyclists stopped, and accelerated instantaneously at the same speed than before but in opposite direction , then

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thus denoting v as the speed of the cyclists :

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v= 35 mph

thus the cyclists rode at 35 mph

6 0
3 years ago
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