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DanielleElmas [232]
3 years ago
10

Cara is eight years older than Samantha. In five years, Cara will be twice as old as Samantha. How old are they

Mathematics
2 answers:
Lostsunrise [7]3 years ago
5 0
Explanation:

x = Cara age now
y = Samatha age now

x = y + 8
x + 5 = 2(y + 5)
---
x = y + 8
x + 5 = 2y + 10
---
x = y + 8
x - 2y = 5
---
put the system of linear equations into standard form
---
x - y = 8
x - 2y = 5

solution:
x = Cara age now = 11
y = Samatha age now = 3
igomit [66]3 years ago
4 0

Answer:

how old is samantha then

Step-by-step explanation:

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adoni [48]

Answer:

96 dollars....

Step-by-step explanation:

divide 24 by 5

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Step-by-step answer:

Given:

two inequalities:

4-x <= -1  ........................(1)

2+3x >= 17......................(2)

Required: find the solution of the intersection of inequalities.

Solution:

Solution to (1):

4-x <= -1   transpose

4+1 <=x    simplify

5 <= x      rewrite

x >= 5

Solution to (2)

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3x >= 17-2

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The intersection of the two solutions x>=5 and x>=5 is therefore x>=5

Check:

x=4, => 4-4 = 0  >1  so not a solution

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x=5, => 2+3(5) = 17, so a solution.

similarly for 6, 7, ....

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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