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Lorico [155]
3 years ago
6

Why does the following system of linear equations have no solution? x + 4y = 20 x + 4y = 16

Mathematics
1 answer:
Shkiper50 [21]3 years ago
7 0
4y+4y=21x+16
8y=21x+16
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If a space of 18 inches is allowed for each person, how many persons can be seated in a row of bleacher seats 90 feet long?
REY [17]

Answer:

31 people

Step-by-step explanation:

think of it like a line,

first person at zero then add 3 feet per person so...

1 + 90/3 = 31 people

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6 0
4 years ago
Standard form to slope-intercept form<br> -4x+y=2
kow [346]

Answer:

y = 4x+2

Step-by-step explanation:

slope intercept form is y = mx+b

so we need to solve for y

-4x+y =2

add 4x to each side

4x-4x+y =+4x+2

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6 0
3 years ago
For $ (x) = 2x+1 and g(x) = x - 7, find (f •g)(2).
blondinia [14]

Answer:

3x - 14

Step-by-step explanation:

f = 2x + 1

2x + 1 * g

g = x - 7

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3x - 7 * 2 = 3x - 14

Comments:

Hope this helped (:

also I assumed the $ = f at the begining so please let me know if I am wrong

7 0
3 years ago
7. Malik deposited
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6 0
3 years ago
A small plane flew 708 miles in 3 hours with the wind. Then on the return trip, flying against the wind, it traveled only 420 mi
Bogdan [553]

Answer:

against the wind:

x - y = 715/(2+10/60)

---

with the wind:

x + y = 715/(1+50/60)

---

put the system of linear equations into standard form

---

x - y = 715/(2+10/60)

x + y = 715/(1+50/60)

---

x - y = 330

Step-by-step explanation:

5 0
4 years ago
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