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3 years ago

6 1⁄3 + 7 1⁄4 – 2 1⁄2 =

Mathematics

1 answer:

Korvikt [17]3 years ago

6 0

Answer:

11 1/12

Step-by-step explanation:

6 1/3 = 19/3

7 1/4 = 29/4

2 1/2 = 5/2

19/3 + 29/4 - 5/2

We must find the LCM of 3, 4, and 2. This happens to be 12

3*4 = 12

4*3 = 12

2*6 = 12

Multiply each fraction by the factor that'll get it to 12.

19/3 * 4/4 = 76/12

29/4 * 3/3 = 87/12

5/2 * 6/6 = 30/12

Now go through the problem

76/12 + 87/12 - 30/12

76 + 87 = 163

163/12 - 30/12

163 - 30 = 133

133/12

Simplify

133/12 = 11.0833... or 11 1/12

Hope this helps.

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maxonik [38]

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He spent total $4.50

So he had to have spent 1.50 on oranges.

So $1.50=$1.20 x where x will be the pound of oranges bought.

1.50/1.20 = 1.25 or 1 1/4 pounds of oranges.

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4 years ago

7x-5y=-15 and -14x+7y=0 Solve by elimination

geniusboy [140]

Answer: (5,10)

Step-by-step explanation:

multiply first equation with 2 and add it to second to eliminate X

7x-5y=-15 //*2

14x-10y=-30

-14x+7y=0

----------------

-3y=-30

y=-30/-3

y=10

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3 years ago

Evaluate. 11 + 4 divided by 3 times the sqaure root of 64

rjkz [21]

Answer:

Step-by-step explanation:

it would be first bodmas so

(15) /3 * root 64

5 * root 64

5*8

3 0

3 years ago

Read 2 more answers

One-half of a number,<br> increased by 69 is 74.<br> What is the number?

Klio2033 [76]

Answer:

Step-by-step explanation:

let the number be n then half the number is $\frac{1}{2}$ n , so

$\frac{1}{2}$ n + 69 = 74 ( subtract 69 from both sides )

$\frac{1}{2}$ n = 5 ( multiply both sides by 2 to clear the fraction )

n = 10

Thus the number is 10

6 0

3 years ago

Read 2 more answers

Help i need an answer please dont answer if you are not positive

spayn [35]

What is the area of the shaded region and the circle inside?

$r=20,1m+13,2m=33,3m$
$A_1=\pi r^2$
$A_1=33,3^2\pi$
$A_1=1108,89\pi$

What is the area of the circle inside?

$A_2=20,1^2\pi$
$A_2=404,01\pi$

What is the area of the shaded region?

$1108,89\pi -404,01\pi =704,88\pi$
$704,88\pi \approx 704,88*3,14\approx 2213,3232\approx \underline{2213,32}$

The answer: 2213,32 :)

5 0

3 years ago