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Alchen [17]
3 years ago
9

Janet is buying a $28 necklace. The store reduces the price by 20% and then applies a $2 off coupon. How much will Janet pay for

the necklace? Could you show the work please? I would really appreciate it.
Mathematics
2 answers:
LenKa [72]3 years ago
5 0
$28×.2= $5.6 +$2coupon=$7.6
$28-$7.6=20.4 janet pay for the necklace
Leokris [45]3 years ago
4 0
Okay well the starting is 28 dollars, right. But since there is a 20 percent discount, you have to turn 20% to a decimal. That means moving the decimal sign twice to the left to make it .20. From the it would be .20*28, that should equal 5.6. Now, that 5.6 is the amount you have to take away, it is the price of the sale. From then, you subtract which is 28-5.6 which should be 22.4. From that 22.4 you now take away two dollars and then it should be 22.4-2 which should be 20.4. Now that is your answer, 20.4.
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Step-by-step explanation:

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3 years ago
Solve 270=3e^2.4K to the nearest hundredth
mojhsa [17]

Given:

The equation is:

270=3e^{2.4K}

To find:

The solution for the given equation to the nearest hundredth.

Solution:

We have,

270=3e^{2.4K}

Divide both sides by 3.

\dfrac{270}{3}=e^{2.4K}

90=e^{2.4K}

Taking ln on both sides, we get

\ln (90)=\ln e^{2.4K}

\ln (90)=2.4K                  [\because \ln e^x=x]

Divide both sides by 2.4.

\dfrac{\ln (90)}{2.4}=K

\dfrac{4.4998}{2.4}=K           [\because \ln (90)\approx 4.4998]

1.874916667=K

Round the value to the nearest hundredth (two decimal place)

K\approx 1.87

Therefore, the value of K is 1.87.

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3 years ago
2 – (–8) + (–3) =<br><br>A) 14<br><br><br>B) 7<br><br><br>C) 12<br><br><br>D) 1
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Step-by-step explanation:

2 - ( - 8) + ( - 3) \\ 2 + 8 - 3 \\ 10 - 3 \\ 7

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3 years ago
Read 2 more answers
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