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3 years ago

How to do this I don’t understand

Mathematics

1 answer:

Andrej [43]3 years ago

5 0

Answer:

holy this is just substitution child

Step-by-step explanation:

1. y + 2, y = 4

if y is equal to 4, we can replace y in the equation

4 + 2 = 6

2. 6a / 3, a = 3

6 * 3 / 3 = 6

4. x - 7, x = 12

12 - 7 = 5

5. 2c - 4, c = 5

2 * 5 - 4 = 6

7. 2z - 3x

2 (8) - 3(5) =

16 - 15 = 1

8. 6x / (y + z)

(6 * 5) / (2 + 8)

30 / 10 = 3

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Juniper wants to make a new rectangular garden in her backyard that has a length that is 2 more than twice the width. She needs

lisabon 2012 [21]

Answer:

2x+2y ≤ 64

x=2y+2

Step-by-step explanation:

x = length

y = width

the length is 2 more than twice the width or 2 more than twice y

x = 2+2y

the perimeter of the garden = 2 times the length + 2 times the width

she have 64ft of wire so the perimeter should be equal or less than 64 ft

64 ≥ 2x + 2y

5 0

2 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

2 years ago

Read 2 more answers

Example 4:

oee [108]

Answer:

sorry but i need the points

Step-by-step explanation:

3 0

2 years ago

Put the following rational numbers in order from least to greatest.<br><br> -8.2, 0.4, -2.5, 2.4

Lena [83]

Answer:

-8.2,-2.5,.4,2.4

Step-by-step explanation:

start by negatives. negatives are lesser the higher they are. so -8.2 is less than -2.5. then positives are greater than negatives. .4 is less than 2.4. hope this helps

3 0

3 years ago

Read 2 more answers

A cylinder has a base diameter of 20 meters and a height of 10 meters. What is its

amid [387]

The answer is 3140
V=pie r 2 h
3.14x10 2 x10
3.14x100x10
314x10
3140

5 0

2 years ago