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podryga [215]
3 years ago
7

Three times the larger of two numbers is equal to four times the smaller. The sum of the numbers is 21. Find the numbers.

Mathematics
1 answer:
irakobra [83]3 years ago
4 0
3 * x = 4y (from the question)
X+y = 21 (from the question)

3(21-y) = 4y (sub equation 2 in equation 1)

63-3y = 4y

Y=9 (now you sub the 9 instead of y in any of the equations and solve for x)
X=21-y = 21-9 = 12

Hope it helps, the logic is sound just go over the math.
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Use the distance formula to determine the distance between the two points.

Distance

=

√

(

x

2

−

x

1

)

2

+

(

y

2

−

y

1

)

2

Substitute the actual values of the points into the distance formula.

√

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(

−

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+

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Tap for more steps...

√

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The result can be shown in multiple forms.

Exact Form:

√

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Decimal Form:

11.40175425

…

image of graph

([)]|√>≥

789÷<≤

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