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2 years ago

For the following system, use the second equation to make a substitution for y in the first equation.

2 answers:

6 0

For the following system, use the second equation to make a substitution for y in the first equation.

2x + y = 6
y = 3x + 4

substitute y = 3x + 4 into 2x + y = 6

2x + y = 6
2x +( 3x + 4) = 6

answer is 2x + (3x + 4) = 6 (last choice(

ale4655 [162]2 years ago

4 0

2x + y + 3x + 4 = 6 is the correct equation :)

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Xelga [282]

1. = Step 1. Simplify Brackets and you get $12.5 - 31.5$ Step 2. Simplify and you get $-19
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3 years ago

Multiply and simplify

aleksandr82 [10.1K]

Answer and explanation:

1. 2 × 3/10 = 6/10 = 3/5

2. 8 × 4/8 = 32/8 = 4

3. 9 × 3/9 = 27/9 = 3

4. 12 × 2/11 = 24/11 = 2 2/11

5. 3 × 5/7 = 15/7 = 2 1/7

6. 2 × 3/5 = 6/5 = 1 1/5

7. 11 × 4/8 = 44/8 = 5 4/8 = 5 1/2

8. 10 × 1/4 = 10/4 = 2 2/4 = 2 1/2

9. 5 × 1/4 = 5/4 = 1 1/4

10. 11 × 2/7 = 22/7 = 3 1/7

Hope this helps!

4 0

3 years ago

At cheng’s bike rental cost $40 to rent a bike for seven hours how many dollars does it cost per hour of bike use

Alchen [17]

40$. 7hrs
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3 years ago

Can anyone solve this triangle?

kirill [66]

Answer:

Step-by-step explanation:

a^2+6^2 = 23^2

a^2 = 23^2 - 6^2

a^2 = 529 - 36

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a = √493

a = 22,20

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3 years ago

Dana walks 3/4 miles in 1/4 hours. What is dana's walking rate in miles per hour?

Harman [31]

Dana’s waking rate in miles per hour is 3 mph.

I did 3/4 x 4 = 3 because she walked 1/4 a mile and I needed to figure out the miles per one whole hour.

I hope this made sense and helped you.

5 0

3 years ago

Read 2 more answers