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3 years ago

Sally has 35% off coupon. The total before tax came $23.95. how much did the item originally cost?

Mathematics

1 answer:

Alexxx [7]3 years ago

7 0

Answer:

$36.85

Step-by-step explanation:

23.95 and 35% discount

this means that $23.95 is 65% of the original value (100-35=65)

the highest common multiple of 35 and 65 is 5

so 65 divided by 5 is 13

23.95 divided by 13 is 1.8423...

then you take that number and times it by as many 5's are in 35 that would be 7

so the number times 7 is 12.89.....

now add this number to the original price and you have your answer $36.85

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Determine which function has the greatest rate of change as x approaches infinity.

Mekhanik [1.2K]

Answer: h(x) = 3*x^2 - 7*x + 8

Step-by-step explanation:

The rate of change of a function is equal to the derivate:

remember that a derivate of the form:

k(x) = a*x^n is k'(x) = n*a*x^(n-1)

Then we have:

f(x) = 2*x - 10

f'(x) = 1*2* = 2

g(x) = 16*x - 4

g'(x) = 1*16 = 16

h(x) = 3*x^2 - 7*x + 8

h'(x) = 2*3*x - 1*7 = 6*x - 7

So the only that increases as x increases is h(x), this means that the greates rate of change as x approaches inffinity is the rate of change of h(x)

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3 years ago

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mojhsa [17]

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3 years ago

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3 years ago

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The tens digit is 9 more than the ones digit my number is?

yKpoI14uk [10]

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4 years ago

\250 doctors from three countries in Europe meeting in a conference to decide whether to approve a new vaccine for the flu. Amon

Bezzdna [24]

Answer:

0.683 = 68.3% probability that a randomly chosen doctor is in favor of the vaccine

Step-by-step explanation:

(a) What is the probability that a randomly chosen doctor is in favor of the vaccine

75% of 115/250 = 0.46(German).

60% of 65/250 = 0.26(French).

65% of 70/250 = 0.28(Englishmen). So

$p = 0.75*0.46 + 0.6*0.26 + 0.65*0.28 = 0.683$

0.683 = 68.3% probability that a randomly chosen doctor is in favor of the vaccine

8 0

3 years ago