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RideAnS [48]
2 years ago
5

Tiffany buys a basket of watermelons on sale for \$9$9dollar sign, 9 before tax. The sales tax is 9\%9%9, percent. What is the t

otal price Tiffany pays for the basket of watermelons? \$\ $ dollar sign, space
Mathematics
2 answers:
Mice21 [21]2 years ago
5 0

Answer:   $9.81

Step-by-step explanation:

Given : Tiffany buys a basket of watermelons on sale for $9.

I.e. Cost of a basket of watermelons = $9

Sales tax = 9% = 0.09  [ we divide percentage by 100 to convert it into decimal]

Now , the Total price Tiffany paid = (Cost of a basket of watermelons ) + (Sales tax) x (Cost of a basket of watermelons )

= $9 + (0.09) ($9)

=$9 (1+0.09)

=$9 (1.09)

= $9.81

Hence, the total price Tiffany pays for the basket of watermelons is $9.81.

Phoenix [80]2 years ago
3 0

I know you got this from Khan Academy, and so the answer is $9.81. You probably don't care about how it is done, and you probably just want to put the answer and be done, but I will show you. You have to take the original price of $9 and multiply it with 9%, or 0.09, to get the amount of your tip. add the 9%, or $81. You can also just do 9*109%, or 9*1.09, to put these two steps together and add the original price and the tip.

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Alexxandr [17]

Answer:

112°

Step-by-step explanation:

Given that the diagonals of trapezoid RSTU are congruent, it is an Isosceles Trapezoid.

One of the properties of an Isosceles Trapezoid is that the base angles are equal.

Therefore if the measure of angle S=112°, the measure of Angle U will also be 112°.

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1 year ago
Eighteen 2.5 gallon buckets are needed to fill a cistern with water. Find the constant of variation. Please help! Thank you!
Allushta [10]

Given:

Eighteen 2.5 gallon buckets are needed to fill a cistern with water.

To find:

The constant of variation.

Solution:

If y is directly proportional to x, then

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In the given problem, water in cistern (w) is directly proportional to number of buckets (n).

w\propto n

w=2.5n        (Capacity of each bucket is 2.5 gallons)

Therefore, the constant of variation is 2.5.

6 0
1 year ago
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Use Euler's formula to derive the identity. (Note that if a, b, c, d are real numbers, a + bi = c + di means that a = c and b =
storchak [24]

Answer with Step-by-step explanation:

We have to prove that

sin 2\theta=2sin\theta cos\theta by using Euler's formula

Euler's formula :e^{i\theta}=cos\theta+isin\theta

e^{i(2\theta)}=(e^{i\theta})^2

By using Euler's identity, we get

cos2\theta+isin2\theta=(cos\theta+isin\theta)^2

cos2\theta+isin2\theta=(cos^2\theta-sin^2\theta+2isin\theta cos\theta)

(a+b)^2=a^2+b^2+2ab, i^2=-1

cos2\theta+isin2\theta=cos2\theta+i(2sin\theta cos\theta)

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Comparing imaginary part on both sides

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sin2\theta=2sin\theta cos\theta

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There are 20 children in the cast of a class play, and 8 of the children are boys. of the boys, 4 have a speaking part in the pl
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The probability that a child with a speaking part is chosen randomly would be 2:5.
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2 years ago
Patrick owns an apartment building. He knows that the money he earns in a month depends on the rent he charges. The relationship
belka [17]

E=13,000 and<span>E=1/50R(1650-R)</span>

<span>
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<span>(0.02R)(1650)-0.02R²=13000</span>

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