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Darya [45]
3 years ago
6

2.5x + 100= 600 solve for x

Mathematics
1 answer:
ELEN [110]3 years ago
7 0

ANSWER:

2.5x + 100=600

x=200

step by step explanation:

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The 2 equations are 
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we need to have the same coefficient for one of the variables.
Already y variable has the coefficient of 1 for both equations so we can use the equations  as it is. 
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3x-(-2x) + y -y = 23-(-17)
5x = 40
x = 8
substituting x = 8 in the 2nd equation 
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3 years ago
A family of 2 adults and 3 children went out to dinner. The total bill was $42. Each child's dinner cost $4. How much did each a
Yanka [14]

Answer: Each adult’s meal costed $15

Step-by-step explanation:

This situation can be modeled by the following equation:

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Since we know from the problem that a child’s meal costs $4, we know c:

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At this point, we can just solve the resulting equation for a:

2a + 3(4) = 42

= 2a + 12 = 42 (simplify 3(4))

= 2a = 30 (subtract 12 from both sides)

= a = 15 (divide both sides by 2)


So, the cost of each adult’s meal was $15.


8 0
2 years ago
What is the volume of the rectangular prism?
Ivanshal [37]

Answer:

416

Step-by-step explanation:

v-lwh

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3 0
3 years ago
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AURORKA [14]

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Step-by-step explanation:

6 0
3 years ago
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SpyIntel [72]

Answer:

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Step-by-step explanation:

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so f(a)+f(2) = 6(a)+1+13 = 6(a)+14

6 0
3 years ago
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