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hammer [34]
3 years ago
9

you buy 75 candy bars at a cost of $0.49 each what is the total cost of 75 candy bars? use mental math

Mathematics
2 answers:
avanturin [10]3 years ago
7 0

It took me a second but its $36.75

svp [43]3 years ago
5 0
The cost= 75 candy bars •$0.49;
75•49/100= ((75•50)-75)/100= ((75•100/2)-75)/100= ((7500/2)-75)/100=
(3750-75)/100= 3675/100= 36.75

Or
75•50cents= 37.5
considering you pay 50 cents instead of 49;
37.5 -0.75= 36.75
Now you took away the extra penny between 50 and 49
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Kobotan [32]
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4 0
2 years ago
Limited time . 10 points
AfilCa [17]

Answer:

Therefore the value of x is

x=1\pm\sqrt{19}i

Step-by-step explanation:

Given:

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For a Quadratic Equation ax² + bx + c = 0 , Formula Method is given as

x=\dfrac{-b\pm\sqrt{b^{2}-4ac}}{2a}

On Comparing with above we get

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Substituting a , b , c in Formula method we get

x=\dfrac{-(-2)\pm\sqrt{(-2)^{2}-4(1)(20)}}{2\times 1}\\\\x=\dfrac{2\pm\sqrt{-76}}{2}\\\\x=\dfrac{2\pm2\sqrt{19}i}{2}\\Dividing\ by\ 2\ we\ get\\\\x=1 \pm\sqrt{19}i

Therefore the value of x is

x=1\pm\sqrt{19}i

8 0
3 years ago
Halp me please. This questions is killing me. I need the answer. Solve $3a + 4b = a - 8b + 24$ for $a$ in terms of $b$.
Anuta_ua [19.1K]

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3 0
3 years ago
10.5÷1.5 workout it out
ddd [48]
56.9 would be the anser
7 0
3 years ago
. Duke's photography pays $9 for a 5x7 photograph.
g100num [7]

Answer:

the markup percentage is 66.67%

Step-by-step explanation:

The computation of the percent of markup based on cost is shown below:

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= ($15 - $9) ÷ ($9)

= 66.67%

By taking the difference of the selling price & paid price and then divided it by paid price we can get the percentage of markup

Hence, the markup percentage is 66.67%

5 0
3 years ago
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