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3 years ago

W at as the exact solutions of 2 = 5x + 22 (1 point)

Mathematics

2 answers:

evablogger [386]3 years ago

7 0

Answer:

x = -4

Step-by-step explanation:

Step 1: 2-(5*x+22)=0 (move all to left side)

Step 2: -20 - 5x = -5 • (x + 4)

Step 3: Solve : -5 = 0

Step 4: Solve : x+4 = 0

- Hope this helps! If you would like a more in-depth explanation please let me know.

Scrat [10]3 years ago

6 0

X= -4

Your answer ^^^^

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Solve for y<br><br> -17x + 11y = 13

sveta [45]

Answer:

y=13/11+17x/11 (these are fractions)

Step-by-step explanation:

Move all terms that don't contain

to the right side and solve.

4 0

3 years ago

Can someone answer 14,15 and 16? Thank you!

Sergio039 [100]

14= 4 pi/6 pi = 2/3
15 = 8 pi/10 pi = 4/5
16 = no

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3 years ago

Solve the system of linear equations by elimination 2x+7y=1 2x-4y=12

pishuonlain [190]

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3 0

3 years ago

1. Kristen spent $131 on shirts at Target last week. She bought some fancy shirts for

Masja [62]

Answer:

Kristen bought 2 fancy shirts and 5 plain t-shirts.

Step-by-step explanation:

Given that,

Kristen spent $131 on 7 shirts.

Cost of one fancy shirt = $28

Cost of one plain t-shirt = $15

Let,

x be the number of fancy shirts

y be the number of plain t-shirts

x+y = 7 Eqn 1

28x+15y=131 Eqn 2

Multiplying Eqn 1 by 15

15(x+y=7)

15x+15y=105 Eqn 3

Subtracting Eqn 3 from Eqn 2

(28x+15y)-(15x+15y)=131-105

28x+15y-15x+15y=26

13x=26

Dividing both sides by 13

$\frac{13x}{13}=\frac{26}{13}\\x=2$

Putting x=2 in Eqn 1

2+y=7

y=7-2

y=5

Hence,

Kristen bought 2 fancy shirts and 5 plain t-shirts.

3 0

3 years ago

Explain the answer to 4 + (+9)

yaroslaw [1]

I believe that it would be 13, unless you were trying to make the 9 negative. Hope that helps.

4 0

3 years ago