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ludmilkaskok [199]
3 years ago
9

The sum of 4 times one number and 3 times a second number is 64. If the sum of the two numbers is 19, find the two numbers.

Mathematics
1 answer:
charle [14.2K]3 years ago
4 0
A) 4*x + 3*y = 64
B) x + y = 19
B) x = 19 - y Substituting B into A
A) 4*(19 -y) + 3*y = 64
76 -4y + 3y = 64
-y = -12
y =12
x = 7


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Which of the following points would fall on the line produced by the point-slope form equation y - 2 = 3/2(x + 4) when graphed?
Zielflug [23.3K]

Answer:

c. (-2, 5)

Step-by-step explanation:

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to know which is the correct option we have to replace the equation x and y with what is in the point

a.

y - 2 = 3/2(x + 4)

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b.

y - 2 = 3/2(x + 4)

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c.

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d.

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8 0
3 years ago
Can't get my head around this at all any help would be greatly appreciated.​
chubhunter [2.5K]

Answer:

The input is -6, hope this helps :D

Step-by-step explanation:

Represent the machines as expressions:

outputA= 7x-6

outputB= 3x+2

Find the input when the outputA is 3*outputB:

outputA=3outputB

(7x-6)=3(3x+2)

7x-6=9x+6

2x=-12

x=-6

3 0
3 years ago
Read 2 more answers
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