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hoa [83]
3 years ago
15

Lines a and b are parallel.

Mathematics
2 answers:
Novosadov [1.4K]3 years ago
8 0

Answer:

The answer is x=5.

Step-by-step explanation:

11x + 7x + 90 = 180

18x + 90 = 180

       -90    -90

= 18x = 90

 x = 5

x is 5!

Jlenok [28]3 years ago
7 0
The value of X is 16 because the lines intercept
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You can download songs online for $0.99 each. Write an equation relating the total cost (c) to the number of songs (s) you downl
Nookie1986 [14]

Answer:

It would cost $49.50

$0.99 x 50 = $49.50

5 0
3 years ago
Jim is showing his work in simplifying (−8.5 + 6.1) − 1.3.
dexar [7]

9514 1404 393

Answer:

  In step 4, Jim's answer is incorrect.

Step-by-step explanation:

In step 1, Jim swaps the order of addends using the commutative property of addition.

In step 2, Jim uses the distributive property to factor -1 from the final two terms. (The associative property lets Jim move parentheses.)

  6.1 +(-8.5 -1.3) . . . associative property

  6.1 +(-1)(8.5 +1.3) . . . distributive property

In step 3, Jim has used the properties of real numbers to form the sum of two of them.

In step 4, Jim wrote an answer of 1.1, when the answer should have been -3.7. Jim's answer is incorrect.

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The descriptive statements about steps 2 and 4 are both true.

8 0
2 years ago
20 POINTS
chubhunter [2.5K]
Answer: 2 inches, 3 inches, or 3.125 and 2.083


Explanations:
The simplest way is to take 20% of the 2.5 inches and go that much above & below 2.5 inches.

2.5 x 20% = 2.5 x 0.20 = 0.5

So 2.5 - 0.5 = 2 inches was predicted
And 2.5 + 0.5 = 3 inches was predicted.

The more complicated way is to see number + 20% of that number = 2.5, and what number - 20% = 2.5.

Which solution sounds more like what you’re doing in class right now?

If it’s the more complicated way:

0.8x = 2.5 (80% of the predicted rain value equals 2.5)
x = 3.125 inches was predicted

1.2x = 2.5 (120% of the predicted rain value equals 2.5)
x = 2.083 inches was predicted

Sorry, this is probably confusing. Let me know what questions you have.
6 0
2 years ago
What is the fraction and decimal
vfiekz [6]
The fraction is 1/15 and the decimal is 1.15
5 0
3 years ago
Solve x − y = 5 for y.
AnnyKZ [126]

Answer:

-y=5-x

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
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