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skelet666 [1.2K]
3 years ago
12

Just answer quickly 3x - 7y + 5x -1 + 4y

Mathematics
2 answers:
Gennadij [26K]3 years ago
5 0

8x + -3y -1 (simplified)


ohaa [14]3 years ago
3 0
If you simplify it you get 8x - 3y - 1
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Clare mixes 2 1/2 cups of water with 1/3 cup of orange juice concentrate.
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Answer:

We can see that the orange juice mixture tastes stronger in Clare mixture as it has more orange juice than Han's mixture, so hers will Clare's will have more taste.

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4 0
3 years ago
Where does the line y = -4x + 9 cross the y-axis?
Zanzabum

Answer:

slope is -4 y-axis is 9

Step-by-step explanation:

7 0
3 years ago
Beverley has quarters and dimes in her pocket. She has 21 coins with a total value of $3.00. How many of each type of coin does
kondaur [170]

Answer:

Step-by-step explanation:

If all 21 coins were dimes, she'd have $2.10. But she has 90 more cents than that. Now for each coin that's a quarter, not a dime, she has 15 cents more. 90/15= 6. So there are 6 quarters, and 21-6 = 15 dimes.

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6 0
2 years ago
An easy question all wrong or unhelpful or no-work answers will be reported.
miss Akunina [59]
Elimination:

7x - 3y = 20
5x + 3y = 16
(add)
12x = 36
÷ 12
x = 3

(5 × 3) + 3y = 16
15 + 3y = 16
- 15
3y = 1
÷ 3
y = 1/3

Substitution:

5x + 3y = 16
- 3y
5x = 16 - 3y
÷ 5
x = 3.2 - 0.6y

5(3.2 - 0.6y) + 3y = 16
16 - 3y + 3y = 16
16  = 16
- 16
6y = 0
÷ 6
y = 0

Sorry the substitution messed up for some reason, I'll fix it after I've answered the other question

6 0
3 years ago
If x=-5 what is the value of x^2-1/x+1? A. 6 b. -4 c. 4 d. 5 4/5 e. 19 <br> need answers asap
xxTIMURxx [149]

Answer:

The answer is -6 but its not in the option

Step-by-step explanation:

\frac{ {x}^{2} - 1 }{ x  + 1}

Let x = -5

[(-5)²-1]/(-5+1)

= (25-1)/(-4)

= 24/-4

= -6

4 0
3 years ago
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