4 years ago

Supply and demand coordinate to determine prices by working

Mathematics

1 answer:

Verdich [7]4 years ago

4 0

The Answer is Together

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A trapezoid has a base length of 22 cm and a mid-segment length of 23 cm. What is the length of the other

Nezavi [6.7K]

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Step-by-step explanation:

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4 years ago

The difference between two whole numbers is 14. Their product is 1,800. What are the two numbers?

Soloha48 [4]

The numbers are "x" and "y", therefore, we suggest this system of equations:
x-y=14
xy=1800
We can solve by substitution method.
x=14+y

(14+y)y=1800
14y+y²=1800
y²+14y-1800=0

Now, we solve this square equation:
y=[-14⁺₋√(196+7200)] / 2=(-14⁺₋86)/2
We have two solutions:

y₁=(-14-86)/2=-50 ⇒x=14+y=14-50=-36
y₂=(-14+86)/2=36 ⇒x=14+y=14+36=50

Answer: we have two solutions:
Solution1: The first number is -36 and the other number is -50
Soltuion2: The first number is 50 and the other number is 36

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4 years ago