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Dvinal [7]
3 years ago
8

URGENT!!!! The coleman family had their bill at a resturant reduced by $7.50 because of a special discount. They left a tip of $

8.90 which was 20% of the reduced amount. Using x to represent the original bill write an algebraic equation and solve it to find the cost of their bill before the discount. SHOW ALL WORK PLEASE.
Mathematics
1 answer:
Alborosie3 years ago
3 0
I believe it is right ($52.00) but this could be wrong sorry

$8.90×20%

$8.90÷.20=44.5

discounted price:$44.5

44.5+$7.50=$52.00

original price without discount:$52.00

hopefully this helped:)|:)|:)|

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Kaylee is selling candles to raise money for her lacrosse team. The large candles sell for $25 each and the
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Answer:25(20)+10(10)=600

X Y

Step-by-step explanation: sell 20 (X) Large candles and sell 10 (Y) small candles

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3 years ago
The measure of a vertex angle of an isosceles triangle is 120° and the length of a leg is 8 cm. Find the length of a diameter of
Goryan [66]

ANSWER

The length of a Diameter is 3.714

EXPLANATION

The circumscribed triangle is shown in the attachment.

We use the cosine ratio to find the altitude of the isosceles triangle.

\cos(60 \degree)  =  \frac{altitude}{hypotenuse}

\cos(60 \degree)  =  \frac{altitude}{8}

Altitude =8cos(60°)

Altitude=4cm

Let the upper half of the altitude be y cm.

Then the radius of the circle is (y-4)cm

The upper radius meets the tangent at right angles.

From the smaller right triangle,

\sin(60 \degree)  =  \frac{4 - y}{y}

y\sin(60 \degree)  = 4 - y

y\sin(60 \degree)   + y= 4

(\sin(60 \degree)   + 1)y= 4

y=  \frac{4}{\sin(60 \degree)   + 1}

y = 16 - 8 \sqrt{3}

y=1.857

The diameter is 2y

d = 32 - 16 \sqrt{3}

=2(1.875)

The length of a Diameter is 3.714

7 0
3 years ago
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When you divide with negative exponents, you divide the rational numbers like normal and then you add the exponents.
Doss [256]

Answer:

the same as multiplying them, except you're doing the opposite: subtracting where you would have added and dividing where you would have multiplied. If the bases are the same, subtract the exponents. Remember to flip the exponent and make it positive, if needed.

Step-by-step explanation:

6 0
2 years ago
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Francesca has 63 cm of ribbon. She will cut it into two pieces so that the longer piece is 15 cm longer than the shorter piece.
Pie

Answer:

48

Step-by-step explanation:

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6 0
3 years ago
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A cylinder has a height of 4 meters and a radius of 1.5 meters. What is the approximate radius of a sphere that has the same sur
Mama L [17]

If the surface area of the cylinder is 12π square meters. Then the radius of the sphere will be 1.7 meters.

<h3>What is a cylinder?</h3>

A cylinder is a closed solid that has two parallel circular bases connected by a curved surface.

A cylinder has a height of 4 meters and a radius of 1.5 meters.

Then the approximate radius of a sphere that has the same surface area as the cylinder.

We know that the Surface area of the cylinder will be is given as

Surface area = 2πrh

Surface area = 2 x π x 1.5 x 4

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Then we have

Surface area of sphere = surface area of cylinder

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More about the cylinder link is given below.

brainly.com/question/3692256

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