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2 years ago

Write an expression for: half a number decreased by 12.

Mathematics

1 answer:

Gennadij [26K]2 years ago

5 0

Answer:

x/2 - 12

Step-by-step explanation:

let the number be x

half a number means x divide by 2. i.e x/2

when decreased by 12 means x/2 - 12

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Find X and BDL. please Help :(

tatiyna

Answer:

Step-by-step explanation:

BD=BL(given)

so ∠BLD=∠BDL=3x

90+∠GBD+30=180

∠GBD=180-120=60°

Also ∠GBD=∠BLD (given)

so ∠BDL=60°

3x=60

x=20°

8 0

2 years ago

What is the total length of nine pieces of chain each measuring 13 yards, 1 foot, 5 inches? Convert the answer to larger units w

dimulka [17.4K]

Answer: The total length of nine pieces of chain is 121.248 yards.

Explanation:

Since we have given that

Length of each chain = 13 yards, 1 foot, 5 inches

As we know that

$1\ inch=\frac{1}{12}\ foot\\\\5\ inches=\frac{5}{12}=0.4167\ foot\\\\\text{Total foot = 1+0.4167 =1.4167 foot}\\\\And\\\\1\ yard=3\ foot\\\\1\ foot=\frac{1}{3}\ yard\\\\1.4167\ foot=\frac{1.4167}{3}=0.472\ yards\\\\So,\\\\13\ yards+0.472=13.472\ yards$

On Converting it into larger units, we get 13.472 yards

Now, Number of pieces of chain =9

Length of 9 pieces is given by

$13.472\times 9=121.248\ yards$

Hence, Nine pieces of chain are 121.248 yards long .

6 0

3 years ago

PLS HELP ASAP I DONT HAVE TIME FOR THIS, IT ALSO DETECTS IF ITS RIGHT IR WRONG

Airida [17]

Answer:

A, or 50.24 ft.

Step-by-step explanation:

Doing the equation above, we know the radius of the circle, which is 8 ft.

8ft times 2 is 16ft.

16ft times pi gives us (rounded) 50.24 ft.

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3 years ago

Can someone help me solve this question? Step by step please

Nina [5.8K]

So what we do is we first get the x on the right side: 7x-x = 6x.

Now we get the 5 to the left side: 71-5= 66.

Now our equation is 66=6x.
We divide 66 by 6 which makes x=11

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3 years ago

A line has a slope of 1/2 between the points (10,5) and (16,n). What is the value of n?

Nataly_w [17]

The value of new will be 8. Hope I'd help you out there.

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3 years ago