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Rama09 [41]
3 years ago
11

If B is the midpoint of AC,AB=x+6 and AC=5x-6 then what is BC

Mathematics
1 answer:
lyudmila [28]3 years ago
8 0
Look at the picture.

\overline{BC}=\overline{AC}-\overline{AB} \\ \\ \Downarrow \\ \\
\overline{BC}=5x-6-(x+6)= 5x-6-x-6=4x-12

BC is 4x-12.

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Which option shows 18 divided by 15 as a fraction or mixed number
frutty [35]
\dfrac{18}{15} =  1\dfrac{18-15}{15} =  1\dfrac{3}{15}
6 0
3 years ago
Solve the literal equation for the given variable<br> n =4/5(m+7); m
Step2247 [10]

Answer:

<h2>m =  \frac{5n}{4}  - 7</h2>

Step-by-step explanation:

<h2>n =  \frac{4}{5} (m + 7)</h2>

First of all multiply both sides by 5

That's

<h3>5n = 5 \times  \frac{4}{5} (m + 7) \\ 5n = 4(m + 7)</h3>

<u>Next divide both sides by 4</u>

That's

m + 7 =  \frac{5n}{4}

Subtract 7 from both sides to make m stand alone

We have

<h3>m + 7 - 7 =  \frac{5n}{4}  - 7</h3>

We have the final answer as

<h3>m =  \frac{5n}{4}  - 7</h3>

Hope this helps you

7 0
3 years ago
Find volume with full working out thank you ;)
Alina [70]

Answer:

2110 cm³

Step-by-step explanation:

Volume = V1 + V2,

Where V1 is the volume of the pyramid, and V2 is the volume of half cylinder

V1 = ⅓×(Base area)×height

V1 = ⅓×(12.6×21.5)×8.5 = 767.55

V2 = ½×(pi×r²×h)

r = 12.6÷2 = 6.3

V2 = ½×(pi×6.3²×21.5) = 1340.415

Volume = V1 + V2

= 767.55 + 1340.415

= 2107.965

= 2110 cm³ (3 sf)

4 0
4 years ago
HELPEHELP
xz_007 [3.2K]

Answer:

The equation should be 2.5x+1.8=59.3

Step-by-step explanation:

First, subtract the 1.8 dollars from the 59.3. You will get 57.5. Divide it by 2.5 and you will get the number 21 as x.

3 0
3 years ago
15miles/1 hours = ?ft/1 hours
Nataly [62]

Answer:

79200ft/1 hour

Step-by-step explanation:

Formula  

multiply the length value by 5280

8 0
3 years ago
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