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kkurt [141]
2 years ago
11

The variables x and y vary directly. Given the equation y = 2x , find the value of x when

Mathematics
2 answers:
anastassius [24]2 years ago
4 0
Answer:
The answers B, 5


Whitepunk [10]2 years ago
3 0
The answer for this question is 5
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There are two mystery numbers the sum of eight times the first number and 10 times the second number is 24. The sum of seven tim
bonufazy [111]

Answer:

x = the first mystery number = 2

y = the second mystery number = 0.8

Step-by-step explanation:

Let

x = the first mystery number

y = the second mystery number

8*x + 10*y = 24

8x + 10y = 24

7*x + 10*y = 26

7x + 10y = 26

8x + 10y = 24 (1)

7x + 10y = 26 (2)

Subtract (1) from (2) to eliminate y

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Substitute x = 2 into (1)

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10y = 24 - 16

10y = 8

y = 8/10

y = 0.8

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y = the second mystery number = 0.8

8 0
2 years ago
A
Advocard [28]

Answer:

3.6

Step-by-step explanation:

round ur previous answers to the nearest tenth then subtract them.

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