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4 years ago

The sum of two numbers is 15 if the sum of their reciprocal is 3/10 find the numbers

Mathematics

1 answer:

malfutka [58]4 years ago

6 0

Answer:

The numbers are 10 and 5

Step-by-step explanation:

x+y=15

(1/x)+(1/y)=(3/10)

(1/(15-y))+(1/y)=(3/10)

x=10, y=5

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Step-by-step explanation:

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4 years ago

A big lockers above a smaller locker they both have 0.5 m wide and 0.6 m deep Big lockers 1.2 m tall and small lockers half of t

Tomtit [17]

Answer:

$0.54\,\,m^3$

Step-by-step explanation:

Given: Dimensions of a big locker are 0.5 m × 0.6 m × 1.2 m

Dimensions of a small locker are 0.5 m × 0.6 m × $\frac{1.2}{2}=0.6\,\,m$ (as height of small locker is half the height of big locker )

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3 years ago

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(3x + 2y = 7<br> (7x-2y = 3

sineoko [7]

Answer for the equation by elimination

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2 years ago

Are the graphs of the lines in the pair parallel? Explain.

jonny [76]

You need to convert the second equation to slope/intercept form. The first equation is in that form already. Then you can compare slopes.

-6x + 8y = 14
8y = 6x + 14
y = (3/4)x + 14/8

SO THE SLOPE IS 3/4 which is the same as slope of equation 1

Therfore they are parallel.

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3 years ago