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cestrela7 [59]
3 years ago
11

Help i will give brainliest plz help

Mathematics
1 answer:
zhenek [66]3 years ago
8 0

Answer:

7. N. 2x-16

8. Y. 4x+20

9. A. 9x-28.8

10. T. 7x-4

11. S. 6x+54

12. N. 8x+6

13. O. 7x+9

14. N. 7x

15. T. 10x+50

16. W. 4x+15

17. I. 5x+26

18. U. 33/5x-12

19. C. 2.8x-7.56

20. O 10/3x+1/6

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Help me on this please
Butoxors [25]

Answer:

y=35x+50

35*8=280

280+50=330

yes there will be 10 dollars left

I hope this is good enough:

8 0
3 years ago
Which answer correctly estimates the product of 79.623 × 4.83?
mamaluj [8]
The answer to this is 384.57909
6 0
4 years ago
- x - x + 11 - 2x = 83<br>please show step by step!!​
m_a_m_a [10]

Answer:

x=-18

Step-by-step explanation:

<u>Given</u>

<u />-x-x+11-2x=83

<u>Step 1: Combine Like Terms on LHS</u>

<u />-x-x+11-2x=83\\-2x+11-2x=83\\-4x+11=83

<u>Step 2: Subtract 11 on both sides</u>

<u />-4x+11=83\\-4x+11-11=83-11\\-4x=72

<u>Step 3: Divide both sides by -4 to isolate the x-variable</u>

<u />-4x=72\\\\\frac{-4x}{-4}=\frac{72}{-4}\\ \\ x=-18

<u>Final Answer</u>

<u />x=-18

7 0
3 years ago
Read 2 more answers
What is the value of 2.5 - 14.3 (-18.2)?
julia-pushkina [17]

Answer:

262.76

Step-by-step explanation:

We must follow our order of operations here, which tell us to multiply before we subtract.

-14.3 • (-18.2) = 260.26

Then we can look at what's left:

2.5 + 260.26

Work that out to get your answer, 262.76

6 0
3 years ago
Jen factored x² - 4x - 21 as (x - 3)(x + 7) What did she do wrong?
alexgriva [62]

Answer:

She didn't put the sign's in the proper place, it should be ( x + 3 ) ( x - 7 )

Step-by-step explanation:

( x - 3 ) ( x + 7 ) = x² + 7x - 3x - 21 = x² + 4x - 21

( x + 3 ) ( x - 7 ) = x² - 7x + 3x - 21 = x² - 4x - 21

5 0
3 years ago
Read 2 more answers
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