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Andrej [43]
3 years ago
9

What is the answer of (-1/4 subtracted by 1/2) divided by (negative 4/7)

Mathematics
1 answer:
Burka [1]3 years ago
7 0
The answer would be 5/8 and 0.625 in decimal form.


1/-4 - 1/2 * 7/-4 (divide then multiply)

1/-4 - 1 * 7 over 2 * -4 (multiply)

1/-4 - 7 over 2 * -4 (simplify 1 * 7 to 7)

1/-4 - 7/-8 (simplify 2 * -4 to -8)

1/-4 - (7/-8) (move the negative sign to the left)

1/-4 + 7/8 (simplify brackets)

5/8 (simplify).

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The formula to convert Fahrenheit to Celsius is C = 5/9 (F-32). convert 12C to Fahrenheit . Round to nearest degree.
4vir4ik [10]

The formula to convert Fahrenheit to Celsius is C = 5/9 (F-32).

convert 12C to Fahrenheit

We replace 12 with C in the formula

12 = \frac{5}{9} (F-32)

Now multiply the fraction inside the parenthesis

12 = \frac{5}{9}F-\frac{5}{9}*32

12 = \frac{5}{9}F-\frac{160}{9}

Add the fraction on both side

12+\frac{160}{9} = \frac{5}{9}F

\frac{108+160}{9} = \frac{5}{9}F

\frac{268}{9} = \frac{5}{9}F

multiply by 9/5 on both sides

\frac{268}{9} *\frac{9}{5} = F

\frac{268}{5} = F

F= 53.6

So Fahrenheit = 53.6

When we round to nearest degree it becomes 54



4 0
3 years ago
A company's value decreased by 11.2% from 2009 to 2010. Assume this continues. If the company had a value of $9,220,000 in 2009,
Firdavs [7]

Answer:

Vf = Vi % (1+0,112)ⁿ

Step-by-step explanation:

Vf: value of the company in t years

Vi: value of the company today (2009)

n: number of years after 2009

Let's do an example:

What is the value of the company in 2014? That would mean 5 years later.

Let's replace the data into the formula:

Vf = $9.220.000 % (1+0,112)⁵

Vf = $9.220.000 % 1,700293

Vf = $5.442.592,70 is the value of the company in 2014.

8 0
3 years ago
A pack of pencils is on sale at Office Pro for $2.96. You
mihalych1998 [28]

Answer:

$14.80

Step-by-step explanation:

Round 2.96 up to 3. 3*5=15. 3-2.96=0.04. 0.04*5=0.2. 15-0.2=14.8.

8 0
3 years ago
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Please help a girl out I'm so confused
kati45 [8]

Answer:

ummm not 100% sure but........a=1 b=26

Step-by-step explanation:

8 0
3 years ago
12^2 - 6^2 equals what
allsm [11]

Answer:

112

Step-by-step explanation:

12 square= 144

6 squared =36

144-36=112

8 0
3 years ago
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