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alex41 [277]
3 years ago
14

4. (4x – 2y) – (2x – 6y)

Mathematics
1 answer:
rodikova [14]3 years ago
3 0

Answer:

(4x -2y)-( 2x-6y) = 2x-(-4y)

Step-by-step explanation:

only the same sign can be together. so you take the x first 4-2 which is 2x then you take the y signs 2-6 which would be -4 the full equation becomes 2x-(-4)

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Sauron [17]
Divide by 100. 350/100=3.5 which is 3 and 1/2
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Which could the confederate flag? hi guys
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Answer:

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Step-by-step explanation:

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2 years ago
6c to te second power - 5d + 8
mina [271]
Lets see,
6c to the second power is 36c because 6c times 6c is 36 c
And since the variables are different and only one number doesn't have a variable, 
The answer would be, 36c-5d+8
7 0
3 years ago
Need some help with number word problems, tysm if you do :)
lord [1]

Answer:

Read below

Step-by-step explanation:

<em>x is always the smaller number</em>

<em>y is always the larger number</em>

<u>underlined</u> means it's the question

bolded means it's the answer

<em>1. </em>

<u>One number is 6 times as large as another. Their sum is 42. Find the numbers.</u>

The numbers need to fit the criteria:

  • 6x=y
  • x+y=42

A. 6+36=42 (correct)

B. 7+42=49 (incorrect)

C. 7+35=42 (incorrect because it doesn't follow the 1st rule)

D. 6+42=48 (incorrect)

Only A. 6, 36 fits the criteria.

<em>2. </em>

<u>One number is 3 less than another. Four times the smaller is 4 more than 3 times the larger. Find the numbers.</u>

The numbers need to fit the criteria:

  • x+3=y
  • 4x-4=3y

A.

4+3=7

12-6≠21 (incorrect)

B.

7+3=10

28-3≠30 (incorrect)

C.

13+3=16

52-4=48 (correct)

D.

9+3≠13 (incorrect)

Only C. 13, 16 fits the criteria.

<em>3. </em>

<u>One number is 4 less than another. Five times the smaller is 3 less than 4 times the larger. Find the numbers.</u>

The numbers need to fit the criteria:

  • x+4=y
  • 5x+3=4y

A.

13+4=17

65+3=68 (correct)

B.

-23+4= -19

-115+3≠ -76 (incorrect)

C.

17+4=21

85+3≠84 (incorrect)

D.

-11+4+ -7

-35+3≠ -33 (incorrect)

Only A. 13, 17 fits the criteria.

<em>4.</em>

<u>The sum of two numbers is 23. When three times the smaller is subtracted from the larger, the result is 3. Find the numbers.</u>

The numbers need to fit the criteria:

  • x+y=23
  • y-3x=3

A.

5+18=23

18-15=3 (correct)

B.

8+15=23

15-24≠3 (incorrect)

C.

-13+36=23

36+39≠3 (incorrect)

D.

-5+28=23

28+15≠3 (incorrect)

Only A. 5, 18 fits the criteria.

<em>5.</em>

<u>The sum of two numbers is 26. When twice the smaller is subtracted from the larger, the result is 2. Find the numbers.</u>

The numbers need to fit the criteria:

  • x+y=26
  • y-2x=2

A.

8+18=26

18-16=2 (correct)

B.

9+17=26

17-18≠2 (incorrect)

C.

7+19=26

19-14≠2 (incorrect)

D.

6+20=26

20-12≠2 (incorrect)

Only A. 8, 18 fits the criteria.

4 0
3 years ago
Find the side AB using the law of sines with the one of the sides 11 and the angles 82 and 44 degrees
Rasek [7]

Answer:

7.7

Step-by-step explanation: We are trying to find side c  or side AB

Using the law of sines formula,

a/sin a= b/sin b c/sin c we can solve for missing side.

We are  given side BC or side a which is 11

We also are given angle A is 82 degrees

Angle C is  44 degrees also.

So let set up a proportion.

11/sin 82= x/sin 44

11/sin 82× sin 44=x

x= 7.7

5 0
2 years ago
Read 2 more answers
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