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Dmitry_Shevchenko [17]

3 years ago

14

How many ways can you choose 4 CD from a stack of 8

1 answer:

ivolga24 [154]3 years ago

4 0

You could do this 4 way actaully

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Kevinhas$100inasavingsaccountthatearns10%interestperyear.Theinterestisnotcompounded.Howmuchinterestwillheearnin1year?

igor_vitrenko [27]

I don't understand what the question is.. there are no spaces..

8 0

3 years ago

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If y varies directly as x and y-21 when x<br> is 7, find x when y = -5.

klasskru [66]

Step-by-step explanation:

Since, y varies directly as x:

$\therefore \: y = kx..(1) \\ (k = constant \: of \: proportionality) \\ at \: y = 21 \: and \: x = 7 \\ 21 = k \times 7 \\ k = \frac{21}{7} = 3 \\ plugging \: k = 3 \: in \: equation \: (1) \\ y = 3x..(2) \\ plugging \: \: y = - 5 \: in \: (2)\\ - 5 = 3x \\ x = \frac{ - 5}{3} \\ \: \: \: \: \: \: \huge \red{ \boxed{x = - \frac{5}{3} }}$

6 0

3 years ago

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Use the compound interest formula to compute the total amount accumulated and the interest earned.

mezya [45]

A=3,500×(1+0.011÷12)^(12×4)
A=3,657.36

Interest earned
=3657.36-3500=157.36

6 0

4 years ago

A movie theater decreased the size of its popcorn bags by 20%. If the old bags held 15 cups of popcorn, how much do the new bags

vovikov84 [41]

Answer:

<em>Your answer will be </em> $12$ <em> cups of popcorn.</em>

Step-by-step explanation:

To find out how much the new bags hold, you need to find out the discount.

$\frac{20}{100 } = .2$

$15 * .2 = 3$

<em>We know that the discount is </em> $3$ <em>.</em>

<em>To figure out how much the new bags hold, subtract by the old bags.</em>

$15 - 3 = 12$

<em>The new bags hold 12 cups of popcorn. </em>

7 0

3 years ago

What is the area of rectangle PQRS with vertices at P(0, 2), Q(0, 10), R(4, 10), and S(4, 2)?

Cerrena [4.2K]

Answer:

D..... 40

Step-by-step explanation:

8 0

3 years ago