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3 years ago

You buy a shirt at Kohl’s that costs 27.50 but it’s 20% off. How much is the new price of the shirt

Mathematics

2 answers:

Andrej [43]3 years ago

8 0

Answer:

$22.00 I think

Step-by-step explanation:

You multiply 27.50 by 20 percent and you get 5.50. Then, you have to take that amount off of the original price and you get $22.00! Hope I helped you! Sorry if i make you get it wrong!

SOVA2 [1]3 years ago

4 0

Answer:

27.50 * 0.2 (20%) = 5.5 (discount)

27.50 - 5.5 = $22

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A prop for the theater club’s play is constructed as a cone topped with a half- sphere. What is the volume of the prop? Round yo

san4es73 [151]

The volume of the prop is calculated to be 1,875.6 cubic cm.

Step-by-step explanation:

Step 1; The prop consists of a cone and a half-sphere on top. We will have to calculate the volumes of the cone and the half-sphere separately and then add them to obtain the total volume.

Step 2; The volume of a cone is determined by multiplying $\frac{1}{3}$ with π, the square of the radius (r²) and height (h). Here we substitute π as 3.14. The radius is 8 cm and the height is 12 cm.

The volume of the cone = $\frac{1}{3}$ × 3.14 × 8 × 8 × 12 = 803.84 cubic cm.

Step 3; The area of a half-sphere is half of a full sphere. The volume of a sphere is given by multiplying $\frac{4}{3}$ with π and the cube of the radius (r³). Here the radius is 8cm. We take π as 3.14.

The volume of a full sphere = $\frac{4}{3}$ × 3.14 × r³ = $\frac{4}{3}$ × π × 8³ = 2,143.5733 cubic cm.

The volume of a half-sphere = $\frac{ 2,143.5733}{2}$ = 1,071.7866 cubic cm.

Step 4; The total volume = The volume of the cone + The volume of the half sphere,

The total volume = 803.84 cubic cm + 1,071.7866 cubic cm = 1,875.6266 cubic cm. By rounding this off to the nearest tenth we get 1,875.6 cubic cm.

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3 years ago

Chantel starts a savings account with $37. Each month she deposits $15 more into her account. Chantel now has saved $97. Which e

I am Lyosha [343]

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3 years ago

Diane reed had office supply sales of $3,285 this month. this is a 78% of last months supply sales. what was the amount of last

Hoochie [10]

To solve this problem, we can set up an equation, letting the unknown value of last month's supply sales be represented by the variable x.

First, we must convert 78% to its decimal equivalent, by dividing 78/100. This is because percentages are parts of a whole 100 percent.

78/100 = 0.78

Now, we are ready to set up our equation, using our knowledge that the word "of" refers to multiplication in mathematics.

3,285 = 0.78x

To solve our equation, we must divide both sides of the equation by 0.78 to get the variable x alone on the right side of the equation.

x = 4211.53846154

This means that last month's supply sales were about $4,211.54 (we round the last digit up because 8 is greater than 5).

Hope this helps!

8 0

3 years ago

PLEASE PLEASE HELP<br><br>question is attached

Andreas93 [3]

Short Answer
x1 = 4.8284
x2 = - 0.828
Remark
Substitute the value for y from the first equation into the second equation. Multiply by 4 and then see if it factors out. Solve for x first and then y.

Step one
Solve for y in the first equation. Subtract x from both sides.
y = 2 - x

Step Two
Equate the two ys.
2 - x = - 1/4x^2 + 3

Step Three
Bring the left side over to the right side.
0 = -1/4 x^2 + x + 3 - 2 Combine the like terms.
0 = -1/4 x^2 + x + 1

Step Four
0 = -1/4 x^2 + x + 1 Multiply through by 4
0 = - x^2 + 4x + 4

Step five
This won't factor. The only thing you can do is use the quadratic equation for roots.

a = - 1
b = 4
c = 4

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

$\text{x = }\dfrac{ -(4) \pm \sqrt{4^{2} - 4(-1)4}}{-2}$

$\text{x = }\dfrac{ -(4) \pm \sqrt{16 + 16}}{-2}$

$\text{x = } 2 \pm \sqrt{32 }\div -2$

x = 2 +/- sqrt(4^2 * 2) / (- 2)

x = 2 +/- 4 sqrt(2) / - 2
x = 2 -/+ 2 sqrt(2)
x = 2 -/+ 2 *(1.414)
x = 2 -/+ 2.828

x1 = 4.8284
x2 = - 0.828

4 0

3 years ago

Read 2 more answers

The points (3,17) and (5,23) give us an m value of how much?

Ne4ueva [31]

(3, 17) and (5,23)

23-17= 6

5-3=2

y-17=m(3-x)

m=3

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3 years ago