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RSB [31]
3 years ago
6

5. What does the following addition equal? 3 and 7 eights + 6 and 5 eights

Mathematics
1 answer:
Blababa [14]3 years ago
8 0

3 7/8 + 6 5/8 =

9 12/8 = 10 4/8

10 4/8 = 10 1/2

The answer is 10 1/2

If you are not looking for a mixed fraction it should be..

21/2

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A <br> B <br> C or D please help
julia-pushkina [17]
The answer is c hope u get it rt
7 0
4 years ago
Adding and Subtracting with Rational Numbers
Pavel [41]

Answer:

-4.6 ft

Step-by-step explanation:

We need to learn to extract only the necessary information to answer question.  The surf shop and the restaurant is extra information.

Monday  1 pm    2.2 ft  

Monday 7 pm  - 2.4 ft

Net change  

-2.4 ft - 2.2 ft = -4.6 ft

The ocean went down 4.6 ft from 1 pm to 7 pm on Monday

4 0
3 years ago
3x - y = 7<br> y = 2x - 2
____ [38]

Answer:

x = 9

Step-by-step explanation:

1) Subsitute! You have to replace y with 2x - 2 in 3x -y = 7, b/c they already gave you the equation for y (in the second part: y = 2x - 2)

 So, your equation would look like this : 3x - (2x - 2) = 7

3) Solve suing PEMDAS!

There's a negative outside the parenthesis of 2x -2 -> - (2x-2). Multiply the negative individually inside the parenthesis so you will get (-2x + 2)

3x - 2x - 2 = 7    subtract the same variable; x

1x - 2 = 7            you don't need to put 1 to x, only if you want!

    + 2  + 2           add 2 on both sides

x = 9

5 0
3 years ago
Which of these have one solution?
Bond [772]
I think it’s A or D I think one of them
7 0
3 years ago
Write the related series for the finite sequence 3, 7, 11, ..., 27. Then find the sum
sweet [91]

Answer:

The sum =105

Step-by-step explanation:

It is given that, finite sequence 3, 7, 11, ..., 27.

<u>Points to remember</u>

1). For a finite sequence sum of n term is given by

Sum  = n/2[first term + last term]

2). nth term of of an AP

tₙ = a + (n - 1)d

Where a - First term

d - common difference

<u>To find the number of terms in the given sequence</u>

Here a = 3 and d = 7 - 3 = 4

tₙ = a + (n - 1)d

27  = 3 + (n - 1)*4

4(n -1) = 27 - 3 = 24

n - 1 = 24/4 = 6

n = 6 +1 =7

<u>To find the sum</u>

Sum  = n/2[first term + last term]

 = 7/2[3 + 27]

 = 7/2[30] = 7 * 15

 = 105

8 0
3 years ago
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