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3 years ago

Can I get a answer for it please

Mathematics

1 answer:

Morgarella [4.7K]3 years ago

6 0

Answer:

25%

Step-by-step explanation:

There are 6+8+10 = 24 cookies

P ( chocolate chip) = number of chocolate chip/ total

= 6/24 = 1/4

Changing to percent

1/4 = 25/100 = 25%

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Natali [406]

Answer:

Step-by-step explanation:

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-4.4+3.6 $\geq$ 1.6x

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3 years ago

Solve for p: p/2 + 0.1 > 0.

AleksandrR [38]

Answer:

p > −0.2

Step-by-step explanation:

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3 years ago

A storage tank contains a liquid radioactive element with a half-life of 96 years. It will be relatively safe for the contents t

PolarNik [594]

Answer:

The tank must remain intact for 1183 years.

Step-by-step explanation:

Exponential equation for decay:

The amount of a substance after t years is given by:

$A(t) = A(0)e^{rt}$

In which A(0) is the initial amount and r is the decay rate.

A storage tank contains a liquid radioactive element with a half-life of 96 years.

This means that $A(96) = 0.5A(0)$ , and we use this to find r.

$A(t) = A(0)e^{rt}$

$0.5A(0) = A(0)e^{96r}$

$e^{96r} = 0.5$

$\ln{e^{96r}} = \ln{0.5}$

$96r = \ln{0.5}$

$r = \frac{\ln{0.5}}{96}$

$r = -0.0072$

$A(t) = A(0)e^{-0.0072t}$

It will be relatively safe for the contents to leak from the tank when 0.02% of the radioactive element remains. How long must the tank remain intact for this storage procedure to be safe?

This is t for which $A(t) = 0.0002A(0)$ . So

$A(t) = A(0)e^{-0.0072t}$

$0.0002A(0) = A(0)e^{-0.0072t}$

$e^{-0.0072t} = 0.0002$

$\ln{e^{-0.0072t}} = \ln{0.0002}$

$-0.0072t = \ln{0.0002}$

$t = -\frac{\ln{0.0002}}{0.0072}$

$t = 1183$

The tank must remain intact for 1183 years.

5 0

3 years ago

Ruby and her friends are going into a restaurant. How much would it cost to buy 3

Gnoma [55]

Answer:

Step-by-step explanation:

3x2.25=6.75

4x4=16

16+6.75=22.75

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3 years ago

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Gelneren [198K]

Answer:

You didnt give us data to use

for example TEAKWOOD IS 3 METER LONG AND PATH 10 HOW LONG IS BUCKSKIN

Step-by-step explanation:

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3 years ago