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Troyanec [42]
2 years ago
13

The running time (in minutes) of a TV episode is 60-2c where c is the number of commericals aired during the episode. What is th

e running time of an episode with 15 commercials?
Mathematics
1 answer:
slava [35]2 years ago
5 0

Answer:

60-2(15)=?

60-30=30

30 minutes

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for your nursing home, you have ordered 160 bottles of glucose the medical supplier delivered 32 bottles this morning and 70 bot
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Answer:

68

Step-by-step explanation:

70 add 32

160 - 92

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The ______ average ignores compounding.
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3 years ago
How do I solve this?
patriot [66]
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4 0
3 years ago
Read 2 more answers
the height of a triangle is 9m less than its base. the area of the triangle is 56 m^2 find the length of the base (SHOW STEPS)
Veronika [31]
Hey there :)

We know the area formula of a triangle
\frac{1}{2} (base)(height)

We are given:
The area = 56 m²
The base = let p represent this
The height = 9 m less than the base = p - 9

Apply the formula
56 = \frac{1}{2} × ( p ) × ( p - 9 )
56 = \frac{1}{2} × ( p² - 9p )

Divide \frac{1}{2} on both sides
56 ÷ \frac{1}{2} = p² - 9p
112 = p² - 9p

Bring 112 to the other side and equate equation to 0
p² - 9p - 112

Factorise { Sum = -9 , Product = - 112 , therefore suitable factors = - 16 × 7 )
( p - 16 )( p + 7 ) = 0
     ↓          ↓
 p = 16    p = - 7  ←  Reject p = - 7 since length cannot be negative

So, the length  of the base is 16 m

Check:
56 m² = \frac{1}{2} × 16 × ( 16 - 9 )
56 m² = 8 × 7
56 m² = 56 m²
7 0
3 years ago
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