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meriva
3 years ago
5

From an 8- foot board, a carpenter sawed off one piece that was 2 3/4 feet long and another piece that was 3 1/2 feet long. How

much of the board was left? Please explain how you got things and explain the work. ​
Mathematics
1 answer:
alexdok [17]3 years ago
3 0

Answer:

1 3/4 or 1.75

Step-by-step explanation:

An easy way to do this is to convert to decimals

1/4 = 0.25

2/4 = 0.5

3/4 = 0.75

Now, for the numbers for this problem.

2 3/4 would be equal to 2.75

3 1/2 would be equal to 3.5

Add those two numbers together and you get 6.25

Subtract that from 8 and you get 1.75 or 1 3/4

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Simplify this complex fraction.
soldier1979 [14.2K]

answer: 6 3/4

you divide 1/3 by 2 1/4

= 1/3 / 9/4

= 3/1 x 9/4

= 27/4

= 6 3/4

5 0
3 years ago
Show your work<br> 2) Is(-3,-7) a solution to<br> 4x – 8y &lt; 24<br> Show your work
asambeis [7]

Answer: false, 44 is not less than 24

Step-by-step explanation:

Substitute-3 for x and -7 for y.

4(-3)-8(-7)<24

-12+56<24

44<24

3 0
3 years ago
Which represents the solution set of the inequality 6x-9​
FrozenT [24]

Answer:

3(2x-3)

Step-by-step explanation:

6x-9 Common factor is 3

6x/3 = 2x

-9/3 = -3

3(2x - 3)

5 0
3 years ago
(2x105)/(3x103) + 3x103 * 5x102
AleksAgata [21]

Answer:

1500066.66

Step-by-step explanation:

Given: (2\times10^{5} )/(3\times 10^{3} ) + 3\times10^{3} \times 5\times10^{2}

Now, simplifying it.

Using PEDMAS in solving the expression

First opening the parenthesis

= 2\times10^{5} /3\times 10^{3}  + 3\times10^{3} \times 5\times10^{2}

Next dividing the number

as per law of indices, x^{m} \div x^{n} = x^{m-n}

= 2\times10^{5-3} /3 + 3\times10^{3} \times 5\times10^{2}

= 2\times10^{2} /3 + 3\times10^{3} \times 5\times10^{2}

= \frac{2\times10^{2} }{3}  + 3\times10^{3}  \times 5\times10^{2}

Next multiplying the number as per PEDMAS

as per law of indices, x^{m} \times x^{n} = x^{m+n}

= \frac{2\times10^{2} }{3}  + 15\times10^{3+2}

= \frac{2\times10^{2} }{3}  + 15\times10^{5}

= \frac{2\times 100}{3}  + 15\times10^{5}

Next dividing the number as per PEDMAS

= 2\times 33.33  + 15\times10^{5}

Next multiplying the number as per PEDMAS

= 66.66+1500000

Now adding the number

= 1500066.66

4 0
3 years ago
How to write 24.357 in express unit form?
nignag [31]
(2x10)+(4x1)+(3x1/10)+(5x1/100)+(7x1/1000)
<span>1/10,1/100,1000 are fractions

Hope I Helped!!!</span>
8 0
3 years ago
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