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3 years ago

4/5 divided by 3 fraction.......

Mathematics

1 answer:

astra-53 [7]3 years ago

5 0

Answer:

4/15

Step-by-step explanation:

$\frac{\frac{4}{5} }{3}=\frac{4}{5}(\frac{1}{3})=\frac{4}{15}$

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Two pennies, a nickel, and a dime are placed in a cup. You draw a first coin and then a second coin.

QveST [7]

Answer:

a) {P1P2, P1N, P1D,P2P1, P2N,P2D,NP1,NP2,ND,DP1,DP2,DN}

PP=2/12 NP=4/12 DP=4/12 DN=2/12

b) 1/3

Step-by-step explanation:

Let us call pennies by P1 and P2.

a)There are 12 possible outcomes as it is written above.

b)In order to have 11 cents we need a penny and the dime. There are 4 such possibilities (events). The total number is 12. So the probability is 4/12.

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3 years ago

Select the expressions that are equivalent to 6z+7z.

vampirchik [111]

Answer: 13z

Step-by-step explanation: combine 6z and 7z to get 13z

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3 years ago

Read 2 more answers

A pair of shoes is currently priced at $55.00. If the store manager marks it down to $22.00, by what percent did he mark down th

telo118 [61]

Answer:

60%

Step-by-step explanation:

55 - 22 = 33

33/55 = 0.6

0.6*100 = 60%

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3 years ago

A 41 gram sample of a substance that's used to detect explosives has a k-value of 0.1392. Find the substance's half life, in day

-BARSIC- [3]

Answer:

The substance half-life is of 4.98 days.

Step-by-step explanation:

Equation for an amount of a decaying substance:

The equation for the amount of a substance that decay exponentially has the following format:

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

In which k is the decay rate, as a decimal.

k-value of 0.1392.

This means that:

$A(t) = A(0)e^{-0.1392t}$

Find the substance's half life, in days.

This is t for which $A(t) = 0.5A(0)$ . So

$A(t) = A(0)e^{-0.1392t}$

$0.5A(0) = A(0)e^{-0.1392t}$

$e^{-0.1392t} = 0.5$

$\ln{e^{-0.1392t}} = \ln{0.5}$

$-0.1392t = \ln{0.5}$

$t = -\frac{\ln{0.5}}{0.1392}$

$t = 4.98$

The substance half-life is of 4.98 days.

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3 years ago

What is the value to 370

MAXImum [283]

Answer:

Answer is on the pic

Step-by-step explanation:

I hope it's helpful!

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3 years ago

4/5 divided by 3 fraction.......​

4/5 divided by 3 fraction.......