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3 years ago

Joe and grace are baking cookie

Mathematics

2 answers:

garik1379 [7]3 years ago

8 0

Step-by-step explanation:

Joe and Grace are baking cookies

STatiana [176]3 years ago

3 0

Answer:

is that a question?

Step-by-step explanation:

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25% of 200 is _________.

telo118 [61]

Simple, change 25% into 0.25.

Thus,

n=0.25*200
n=50

thus, your answer is, 25% of 200 is 50.

8 0

3 years ago

Read 2 more answers

Find the volume of the cone. Use 3.14 for π. Round to the nearest tenth.

Leviafan [203]

$Volume\,\,of\,\,cone=1527.1\,\,cm^3$

So, Option C is correct.

Step-by-step explanation:

We need to find Volume of cone.

We are given:

π = 3.14

Length = 27 cm

Diameter = 15 cm

The formula used to find Volume of cone is:

$Volume\,\,of\,\,cone=\frac{1}{3}\pi r^2h$

We are given diameter but we need radius in the formula

So, Radius = Diameter/2 = 15/2 = 7.5 cm

We need to find height of cone.

Using Pythagoras theorem:

$h^2=p^2+b^2\\ (27)^2=p^2+(7.5)^2\\729=p^2+56.25\\p^2=729-56.25\\p^2=672.75\\Taking\,\,square\,\,root:\\p=25.93$

So, Height of cone = p= 25.93

So, r= 7.5 and h= 25.93 and π = 3.14

Putting values in the formula:

$Volume\,\,of\,\,cone=\frac{1}{3}3.14*(7.5)^2*25.93$

$Volume\,\,of\,\,cone=1526.62$

Rounding off to the nearest tenth:

$Volume\,\,of\,\,cone=1527.1\,\,cm^3$

So, Option C is correct.

Keywords: Volume of cone.

Learn more about Volume of cone at:

#learnwithBrainly

6 0

3 years ago

Solve for a. 4a+5=2+3.25a4a+5=2+3.25a

Rina8888 [55]

Answer:

a=-4

Step-by-step explanation:

4a-3.25a=2-5

0.75a=-3

a=-4

3 0

3 years ago

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Complete the missing value in the solution to the equation. y=-2x+4 y=-2

anygoal [31]

Answer:

X=3,y=-2

Step-by-step explanation:

This is a simultaneous equation question and we will have to solve using substitution method

So let's solve

y=-2x+4...(1)

y=-2....(2)

Let's substitute (2) into (1)

-2=-2x+4

Substrate 4 from both sides

-6=-2x

Divide both sides by-2

x=3

Substitute the value of x in (1)

y=-2(3)+4

y=-6+4

y=-2

Therefore x is 3,y is -2

3 0

2 years ago

Please do answer: Simplify the expression---5x-2y + 3x + 2y (100 points)

netineya [11]

5x-2y+3x+2y

Combine like terms

5x+3x-2y+2y
(5+3)x+(-2+2)y
8x+0
8x

8 0

2 years ago

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