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3 years ago

7

Choose the equations that are equivalent. Select all that apply.

1 answer:

Nadusha1986 [10]3 years ago

3 0

Answer:

A. 52 = 8n +4

C. 4 = 52 - 8n

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Need help please 9× > 108

butalik [34]

Answer:

x > 12

Step-by-step explanation:

9x>108

x> 108/9

x > 12

8 0

3 years ago

Read 2 more answers

Which verbal expression best describes the algebraic expression 3x ÷ 5?

Alchen [17]

The right answer for the question that is being asked and shown above is that: "The quotient of three times some number and five." The verbal expression best describes the algebraic expression 3x ÷ 5 is that <span>The quotient of three times some number and five</span>

3 0

4 years ago

Find the range.<br> 3-97-15-42

Anastaziya [24]

Well to find the range, you need to take the highest number and subtract the lowest from it:

3 - -97

3 + 97

100

Range is always positive

plz mark me as brainliest if this helped :)

3 0

3 years ago

Emily bikes 18 miles in 2 hours. Ella bikes 22 miles in 2.5 hours. Which rate is better?

DaniilM [7]

By better I am assuming you meant faster so,
18 ÷ 2 = 9
22 ÷ 2.5 = 8.8
9 > 8.8
therefore Emily has the faster rate.

6 0

4 years ago

The perimeter of a particular square and the circumference of a particular circle are equal. What is the ratio of the area of th

Tasya [4]

Ratio of the area of the square to the area of the circle is $\frac{\pi}{4} : 1$

In terms of fraction $\frac{\pi}{4}$

<em><u>Solution:</u></em>

Given that perimeter of a particular square and the circumference of a particular circle are equal

To find: ratio of the area of the square to the area of the circle

Let the side of square be "a" and radius of circle be "r"

<em><u>The perimeter of square is given as:</u></em>

Perimeter of square = 4a

<em><u>The circumference of circle is given as:</u></em>

Circumference of circle = 2πr

From given,

perimeter of a particular square and the circumference of a particular circle are equal

perimeter of a particular square = circumference of a particular circle

$4a = 2 \pi r\\\\a = \frac{\pi r}{2}$

We need to find the ratio of the area of the square to the area of the circle.

We know that,

$\text{ Area of the square }= a^2\\\\\text{ Area of the circle }= \pi r^2$

Ratio of area of square to area of circle = $a^2 : \pi r^2$

Substituting the value of $a = \frac{\pi r}{2}$ in above ratio,

Ratio of area of square to area of circle = $(\frac{\pi r}{2})^2 : \pi r^2$

On reducing to lowest terms we get,

⇒ $\frac{\pi^2 r^2}{4} : \pi r^2 = \frac{\pi}{4} : 1$

In terms of fraction we get,

$\frac{\pi}{4} : 1 = \frac{\frac{\pi}{4}}{1} = \frac{\pi}{4}$

Thus ratio of the area of the square to the area of the circle is $\frac{\pi}{4} : 1$

3 0

4 years ago