3 years ago

I don’t know what to do. Can you please help me.

Mathematics

1 answer:

konstantin123 [22]3 years ago

7 0

Answer:

66.67 %

Step-by-step explanation:

The surface area of a cake (cylinder) = 2πr² + 2πrh

but since we are not including bottom for chocolate cake so the formula changes to = 2ℎ+²

πr² + 2πrh

π4² + 2π(4)(4)

16π + 32π

48π inches

<h3>S.A of chocolate</h3>

2ℎ+²(top)

24(2) + (4)²

16 + 16

32 inches

Percentage of cake that is chocolate = S.A of chocolate/S.A of cake * 100%

Percentage of cake that is chocolate = 32 inches/48π inches * 100%

Percentage of cake that is chocolate = 66.67%

(Assuming that top of chocolate is included)

You might be interested in

What is the value of xy+2z when x=-2, Y=4, and z=-5

irakobra [83]

Answer:

Step-by-step explanation:

xy + 2z = (-2)*4 + 2*(-5)

= -8 + (-10)

= -18

8 0

3 years ago

Read 2 more answers

What is the area of the figure below

cestrela7 [59]

There is no picture

6 0

4 years ago

What does x equal in 1/3(6-9x)=-1/5(15x-10)?

Darya [45]

Answer:

True for all x.

Step-by-step explanation:

1. Expand 1/3(6-9x)

2-3x

2. Expand -1/5(15x-10)

-3x+2

3. Subtract 2 from both sides.

2-3x-2 = -3x+2-2

4. Simplify.

-3x = -3x

5. Add 3x to both sides.

-3x + -3x = -3x + -3x

6. Simplify.

0=0

Both sides are equal, so it is true for all x.

4 0

3 years ago

8.6% is equivalent to what fraction in reduced terms?

Nadya [2.5K]

$8.6\%= \frac{8.6}{100} = \frac{86}{1000} = \frac{43}{500}$

5 0

3 years ago

The product of two positive numbers is 1,800. One number is twice the other number. The equation to determine the two numbers, w

Art [367]

Answer:

600

Step-by-step explanation:

x+2x=1800

3x=1800

x=600

4 0

3 years ago

Read 2 more answers