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4 years ago

10

suppose a 5 minute overseas call casts $5.91 and a 10 minute call casts $10.86. the cost of the call and the length of the call

are related. How long can you talk on the phone if you have a $20 bill

2 answers:

Alexandra [31]4 years ago

6 0

Answer:

21.72

Step-by-step explanation:

10/10.86=20/?

10 x 2=20

10.86 x 2=21.72

uranmaximum [27]4 years ago

3 0

Answer21.73 dividing is the key

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While making a jar, a potter removes part of a clay sphere and stores the clay from the removed part in a box with dimensions x

Sveta_85 [38]

Answer:

The correct answer to the following question will be " $\frac{5\pi }{192} \ cubic feet$ ".

Step-by-step explanation:

Give that the volume of the box = xyz cubic feet

Amount of jars which you can make = $\frac{192xyz}{\pi }$

Let the volume of the removed clay = V cubic feet

As we know,

$Total \ number \ of \ jars=\frac{Volume \ of \ the \ box}{Volume \ of \ removed \ clay}$

As we place the values in the equation above, we obtain

⇒ $\frac{192xyz}{5\pi}=\frac{xyz}{V}$

When multiplication is applied we receive

⇒ $V(192xyz)=5\pi \times xyz$

⇒ $192V=5\pi$

⇒ $V=\frac{5\pi }{192}$ cubic feet

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3 years ago

△ABC ~ △XYZ. Find X. Thanks!

Marizza181 [45]

Answer:

<h2> $\huge \: \boxed{ \boxed{21}}$ </h2>

Step-by-step explanation:

according to the question

$\frac{14}{2x + 7} = \frac{x - 3}{63}$

$882 = (x - 3)(2x + 7)$

$0 =882 - (x - 3)(2x + 7)$

$882 - (2 {x}^{2} + x - 21) = 0$

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$2x + x - 903 = 0$

$(2x + 43)(x - 21) = 0$

$x = - \frac{43}{2} \\ x = 21$

$\huge \therefore x = 21$

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