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3 years ago

if you had 75 bars of chocolate but you gave 60 away, what is the percentage of thw amount you gave away?

Mathematics

1 answer:

mars1129 [50]3 years ago

7 0

Total chocolate bars: 75
Chocolate bars given away: 60

60/75 = 0.8 or 80%

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A salt mixture has 8 parts water and 2 parts salt. Suppose one part of each is added. What is the new ratio of salt

Ivanshal [37]

Answer:

3 to 9

Step-by-step explanation:

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4 years ago

Volume of sphere Marcus is using small stone spheres

satela [25.4K]

<h2>Volume of Sphere</h2>

1. What is the radius of the stone sphere?

- To know what is the radius divide is by 2.

$\large \tt 6 \div 2 = 3$

Therefore, the radius of the stone sphere is 3in

2. What is the volume of the stone sphere?

- Using the formula in finding the Volume of Sphere $\tt V = \frac{4}{3}\pi r^3$ to get the answer. Where the volume of the sphere is $\tt\frac{4}{3}\:\:\:\:\pi$ multiplied by the cube of the radius.

$\tt V = \frac{4}{3}\pi r^3$
$\tt V = \frac{4}{3}\times 3.14\times 3in^3$
$\tt V = \frac{4}{3}\times 3.14\times 27in$
$\tt V = \frac{4}{3}\times 84.78in$
$\tt V = \frac{339.12in}{3}$
$\tt V = 113.04in^3$

Therefore, the volume of the stone sphere is 113.04in³

3. Another stone sphere for the garden has a diameter of 10 inches. What is the volume of the stone sphere? Use 3.14 for <em>π</em>, and round to the nearest hundredth.

- Using the formula in finding the Volume of Sphere $\tt V = \frac{4}{3}\pi r^3$ to get the answer. Where the volume of the sphere is $\tt\frac{4}{3}\:\:\:\:\pi$ multiplied by the cube of the radius.

$\tt V = \frac{4}{3}\pi r^3$
$\tt V = \frac{4}{3}\times 3.14\times 5in^3$
$\tt V = \frac{4}{3}\times 3.14\times 125in$
$\tt V = \frac{4}{3}\times 392.5in$
$\tt V = \frac{1570in}{3}$
$\tt V = 523.33in^3$

<h3>Explanation</h3>

Therefore, the volume of the stone sphere is 523.33in³

<h3>#CarryOnLearning</h3>

4 0

3 years ago

Read 2 more answers

Elizabeth has two identical number cubes. both cubes have faces numbered 1 through 6. If Elizabeth rolls each cube once, What is

Lelechka [254]

The sample space for the two identical dice (outcomes):

(1,1)(1,2)(1,3)(1,4)(1,5)(1,6)

(2,1)(2,2)(2,3)(2,4)(2,5)(2,6)

(3,1)(3,2)(3,3)(3,4)(3,5)(3,6)

(4,1)(4,2)(4,3)(4,4)(4,5)(4,6)

(5,1)(5,2)(5,3)(5,4)(5,5)(5,6)

<span>So if Elizabeth rolls each cube once, there is 36 (6 x 6) possible outcomes.</span>

<span>Let E = event of getting a sum of 10.</span>

<span>The number which is a sum 10 will be:</span>

E = [(4,6), (5,5),(6,4)]

P(E) = number of favorable outcomes divided by total number of possible outcomes

= 3 / 36 or 0.083

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3 years ago

Translate<br> Twice a number is smaller than 42.<br> Help please

vekshin1

I need a picture sorry

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3 years ago

A ball is thrown from an initial height of 1 meter with an initial upward velocity of 25/ms. The ball's height h (in meters) aft

Lina20 [59]

Set h =11
11=-5t^2+25t+1
-5t^2+25t-10=0
Now use quadratic formula to solve for t

t=[-b+\-sqrt(b^2-4ac)]/(2a)
t= [-25+\-sqrt((25)^2-4(-5)(-10))]/2(-5)
t= .438sec and 4.562sec

8 0

3 years ago