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IgorLugansk [536]
3 years ago
5

Solve the system of linear equations using either substitution or the elimination method.

Mathematics
1 answer:
lara31 [8.8K]3 years ago
4 0

Answer:

x = -1

y = 2

Step-by-step explanation:

x + y = 1

y = -x + 1

y = -x + 1  (Multiply this by -1)

y = 3x +5

-y = x - 1

y = 3x +5

0 = 4x + 4

4x = -4

x = -1

x + y = 1

-1 + y = 1

y = 2

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KATRIN_1 [288]

Answer:

x ≈ - 1.28

Step-by-step explanation:

Using the rule of logarithms

log_{b} x = n ⇔ x = b^{n}

Given

ln(x + 4) = 1 , then

x + 4 = e^{1} ( subtract 4 from both sides )

x = e^{1} - 4 = - 1.28 ( to the nearest hundredth )

4 0
3 years ago
I need help lololololololololololololololol
likoan [24]

Answer:

First Blank: 4*2 = <em><u>8</u></em>

Second Blank: 6*2 = <em><u>12</u></em>

Step-by-step explanation:

The common ratio for the right row is the number thats given on the opposite side of it's left row times 2

Hope this helps!

4 0
3 years ago
Read 2 more answers
miles has 25 coins In his pocket. Some are Nichols and some are dimes. He has a total of $1.65 how many of each type of coin doe
Leni [432]

▪ Answer:

n = 17

d = 8

▪ Step-by-step explanation:

Hi there !

1 nickel = 5c

1 dime = 10c

$1.65 = 165c

n + d = 25 => n = 25 - d

5n + 10d = 165

replace n

5(25 - d) + 10d = 165

125 - 5d + 10d = 165

5d = 165 - 125

5d = 40

d = 8 (dimes)

n = 25 - d

n = 25 - 8

n = 17 (nickels)

Good luck !

7 0
3 years ago
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ikadub [295]

Answer:?????????

Step-by-step explanation:

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Kisachek [45]
I believe its C

Hoped I help :)

And have a nice day/weekend :)
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