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3 years ago

Solve for X:

Mathematics

2 answers:

galben [10]3 years ago

4 0

Answer:

A. -61/9

Step-by-step explanation:

(7x + 28) + (7x +28) = 5x - 5 . . . . . . . given equation

14x +56 = 5x -5 . . . . . . . . . . . . . . . . . collect terms

9x = -61 . . . . . . . . . . . . . . . . . . . . . . . . subtract 5x+56

x = -61/9 . . . . . . . . . . . . . . . . . . . . . . . . divide by the coefficient of x

Nesterboy [21]3 years ago

3 0

Answer:

A. -61/9

good luck

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Sophia finished 2/3 of a book. She calculated that she finished 90 more pages than she has yet to read. How long is her book?

TEA [102]

Answer:

The book is 270 pages long.

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3 years ago

How many numbers can you make with four digits

Natasha_Volkova [10]

Well, first consider how many digits there are. You have 1, 2, 3, 4, 5, 6, 7, 8, 9, and 0, depending on how you use it, that are all digits.
If you count 0 as a digit other than a place holder (0000, 0001, etc.), you would end up with ten thousand (10,000) numbers with four digits, starting with 0000, and ending with 9999. If you count 0 as nothing other than a place holder (1000, 1001, etc.), you would have nine thousand (9,000) numbers with four digits, starting with 1000.
So, depending on how you view 0, you can make up to 10,000 different numbers that contain four digits.

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4 years ago

Read 2 more answers

Which ones are like terms?<br> -1 and 4<br> 3x and -6<br> 5x and -1<br> 5x and 4

irina [24]

Answer: -1 and 4
Explanation: the others aren’t because they have variables in one and numbers in the other

7 0

3 years ago

If there are 20 values in a data set in order from smallest to largest, what is

Natasha_Volkova [10]

Answer:

C The mean of the 10th and 11th values

Step-by-step explanation:

Strike the lowest and largest number until you get 1 or 2:

1, 2, 3,4 5,6 ,7 8, 9, 10, 11, 12, 13 ,14, 15, 16, 17, 18, 19, 20

2, 3,4 5,6 ,7 8, 9, 10, 11, 12, 13 ,14, 15, 16, 17, 18, 19

3,4 5,6 ,7 8, 9, 10, 11, 12, 13 ,14, 15, 16, 17, 18

4 5,6 ,7 8, 9, 10, 11, 12, 13 ,14, 15, 16, 17

5,6 ,7 8, 9, 10, 11, 12, 13 ,14, 15, 16,

,6 ,7 8, 9, 10, 11, 12, 13 ,14, 15

,7 8, 9, 10, 11, 12, 13 ,14,

8, 9, 10, 11, 12, 13

9, 10, 11, 12

10, 11,

Finding the Mean:

10+11

21/2

Mean:

10.5

8 0

3 years ago

A 13 foot board is cut into two pieces. The length of the shorter piece is 1 ft more than half the length of the longer piece. F

docker41 [41]

The length of the pieces are 5 foot and 8 foot.

<h3>what is Algebra?</h3>

Algebra is the part of mathematics that helps represent problems or situations in the form of mathematical expressions.

Given:

Total length of board is 13 foot.

let the length of first piece be x

and length of second piece be y

So, x+ y = 13 .......(1)

Now, The length of the shorter piece is 1 ft more than half the length of the longer piece

x = y/2 + 1......(2)

Now, solving (1) and (2) we get

y/2 + 1 + y = 13

3y/2 = 12

y=24/3

y=8

Then x= 13-8

x= 5

Hence, the length of the pieces are 5 foot and 8 foot.

Learn more about Algebra here:

brainly.com/question/24875240

#SPJ1

7 0

1 year ago