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4 years ago

Are the ratios 3:9 and 2:6 equivalent?

Mathematics

2 answers:

Wewaii [24]4 years ago

8 0

Answer:

Yes they are

Step-by-step explanation:

If you reduce them

3:9, divide each by 3, you get 1:3

2:6, divide each by 2, you get 1:3

sleet_krkn [62]4 years ago

3 0

Answer: The ratios 3:9 and 2:6 are equivalent.

Step-by-step explanation:

This is because the unit ratio of 3:9 is 1:3.

To get this you can divide 3/3 and 9/3. This equals 1:3.

I know that 2:6 is equivalent to 3:9 because the unit ratio for 2:6 is also 1:3.

I can find this by dividing 2/2 and 6/2. This equals 1:3.

Therefore, <u>Yes</u> the ratios are equivalent.

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A certain book had an original rating of 27 out of 30 points on a survey chart. Each month, the rating fell by 3 points. Express

Natali [406]

Answer:

D.) f(m)=27−3m

Step-by-step explanation:

Given that:

Original rating = 27

Total possible rating points = 30

Drop in rating point per month = 3

m = number of months since release :

Hence,

F(m) = original rating - drop in rating per month * number of months since release

F(m) = 27 - 3(m)

F(m) = 27 - 3m

7 0

3 years ago

const2013 [10]

The value of 'x' is 8.

5 0

3 years ago

Read 2 more answers

If f(x)=3<img src="https://tex.z-dn.net/?f=x%5E%7B2%7D" id="TexFormula1" title="x^{2}" alt="x^{2}" align="absmiddle" class="late

Anvisha [2.4K]

Answer:

$\sf f(-3) = 23$

<u>given:</u>

$\sf f(x) = 3x^2 -4$

to find the output, replace x with the given integer.

solve:

$\sf f(-3) = 3(-3)^2 -4$

$\sf f(-3) = 3(9) -4$

$\sf f(-3) = 27 -4$

$\sf f(-3) = 23$

5 0

2 years ago

Which expression is equivalent to 1/1-2sin^2(x)?

Alika [10]

Answer:

a) $\frac{1}{cos(2x)}$

Step-by-step explanation:

5 0

3 years ago

A marathon is 46,145 yards (about 26 miles) long. If Terrence has run 23,561 yards, estimate by rounding to thousands the number

barxatty [35]

Given:

The length of the marathon is L= 46,145 yards.

The length covered by terrence is d = 23,561 yrads.

The objective is to find the remaining distance need to cover by terrence.

To calculate the remaining distance, we will use the relation,

$x=L-d$

On plugging the values in the above relation, we get,

$\begin{gathered} x=46145-23561 \\ =22584\text{ yards} \\ \approx23000\text{ yards} \end{gathered}$

Hence, Terrence needs to run about 23000 yards.

5 0

1 year ago