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2 years ago

X + 15y = 45 / x + 10y = 30 solve for x and y

Mathematics

2 answers:

umka2103 [35]2 years ago

8 0

Answer:

x=10; y=2

10+15(2)=40

10+10(2)=30

so this is correct

Step-by-step explanation:

AleksAgata [21]2 years ago

7 0

Answer:

25y = 45/1x = 30

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Step-by-step explanation:

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Answer:

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lianna [129]

Answer: The equation of the sphere with the center and radius

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b) The intersection of this sphere with the y z-plane the x- co-ordinate

is zero(i.e., x = 0 )

Step-by-step explanation:

a) The equation of the sphere having center (h,k,l) and radius r is

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on simplification , we get solution

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$x^{2} +y^{2} +z^{2}-6 x+18 y-6 z+74=0$

b) The intersection of this sphere with the y z-plane the x- co-ordinate

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3 years ago

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alexandr1967 [171]

Answer:

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Step-by-step explanation:

fraction of the wall is limestone is 4/22

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8 inches brick : 8/22

4 inches limestone : 4/22

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3 years ago