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musickatia [10]
3 years ago
11

Solve 2x+y=3.5,-x+2y=2.5

Mathematics
2 answers:
Alex73 [517]3 years ago
5 0

Answer:

x = 1.75 -y, y = 1.25 + x

Step-by-step explanation:

Part One

2x + y = 3.5

<em>Divide</em>

x + y = 1.75

<em>Move the variable and change its sign</em>

x = 1.75 -y

Part Two

-x + 2y = 2.5

<em>Divide</em>

-x + y = 1.25

<em>Add</em>

y = 1.25 + x

padilas [110]3 years ago
3 0

Answer:

y=1.7

x=.9

Step-by-step explanation:

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Monica's college runs on a trimester schedule, so she receives a bill 3 times a year for tuition. Each trimeste
BigorU [14]

Answer:

total cost for Samantha to get her degree = $5,128.2

Step-by-step explanation:

Number of trimesters per year = 3

Number of years = 4

∴ Total number of trimesters throughout college = 3 × 4 = 12 trimesters

Tuition per trimester = $2.350

Total tuition (12 trimesters) = 2.350 × 12 = $28.2

cost of books per trimester = $425

cost of books throughout college (12 trimesters) = 425 × 12 = $5,100

total cost for Samantha to get her degree = total cost of tuition + total cost of books

total cost for Samantha to get her degree = 28.2 + 5,100

total cost for Samantha to get her degree = $5,128.2

7 0
3 years ago
Which expression is equivalent to –5(x + 10)? F. 5x + 50 G. −5x + 10 H. −5x − 50 I. 5x − 50
Sveta_85 [38]

Answer:

H) -5x - 50

Step-by-step explanation:

(-5 · x) + (-5 · 10) = -5x - 50

6 0
3 years ago
What is the slope of the line that passes through the points (-2, 7) and (2, -5)?
amm1812

Answer:-3

Step-by-step explanation:

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Step-by-step explanation:

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7 0
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Read 2 more answers
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