If R=4. Which is the correct answer if R is substituted into R+9

Pls I need help

Lelu [443]

(1) A part to whole ratio compares different parts of the group to each others is true.

(2) the ratio 3:1 can also be written as 1 to 3 is false.

(3) A part to whole ratio can be written as a fraction, a decimal, and a percent is true.

(4) two term and three term ratios compare quantities measures in different units is false.

(1) A ratio has two parts, a numerator and a denominator.

Example: if we have 2 oranges and 3 apples in a fruit basket.

fruits ratio = 2:3

total fruits ratio = 5

fraction of orange = $\frac{2}{5}$

fraction of apple = $\frac{3}{5}$

This ratio compares a part of each fruit to the whole

Thus, a part to whole ratio compares different parts of the group to each others is true.

(2) The ratio 3:1 is written as $\frac{3}{1} =3$ .

Thus, the ratio 3:1 can also be written as 1 to 3 is false.

(3) the ratio 2:3, has the following fractions, decimal and percentage with respect to whole ratio;

fraction of 2 = $\frac{2}{5}$ , decimal = 0.4, percentage = 40%

fraction of 3 = $\frac{3}{5}$ , decimal = 0.6, percentage = 60%

Thus, a part to whole ratio can be written as a fraction, a decimal, and a percent is true.

(4) the units of the quantities compared have to be the same in order to find their ratios.

Thus, two term and three term ratios compare quantities measures in different units is false.

Learn more here:brainly.com/question/2284943

6 0

3 years ago

Can someone help me with this question

icang [17]

Answer:

(4,2)

Step-by-step explanation:

It's parallel, so all of them have to be on the same way.

The last point has to be at the same distance from the one right above it

8 0

2 years ago

Read 2 more answers

Carson took a total of 24 quizzes over the course of 4 weeks. How many weeks of school will Carson have to attend this quarter b

erastovalidia [21]

Answer:

9 weeks

Step-by-step explanation:

Assuming he takes equal number of quizzes weekly then having taken 24 quizzes within 4 weeks means for every week Carson took 24/4=6 quizzes per week.

With a target of 54 quizzes this quater and while maintaining 6 quizzes per week then Carson will take 54/6= 9 weeks to meet thw target.

Therefore, Carson needs 9 weeks this quater

7 0

4 years ago

A and b are positive integers and a−b=2. Evaluate the following:

Nata [24]

Answer:

1/9

Step-by-step explanation:

You can put in any 2 numbers that would make a-b=2 true, so if you use a=4 and b=2, then 3^2/3^4=1/9. This is still true with any 2 numbers that make a-b=2 true. Hope this helps!

3 0

4 years ago

A-b)3+(b-c)3+(c-a)3:(a-b)(b-c)(c-a)

Ivenika [448]

The answer to the above equation is 3

Step-by-step explanation:

(a-b)³+(b-c)³+(c-a)³: (a-b)(b-c)(c-a)

Let us consider (a−b)= x, (b−c)= y and (c−a)= z.

Hence, It is obvious that:

x+y+z =0 ∵all the terms gets cancelled out

⇒We must remember the algebraic formula

x³+y³+z³−3xyz= (x+y+z) (x²+y²+z²-xy-xz-yz)

Since x+y+z=0 ⇒Whole “(x+y+z) (x²+y²+z²-xy-xz-yz) ” term becomes 0

x³+y³+z³−3xyz =0

Alternatively, x³+y³+z³= 3xyz

Now putting the value of x, y, z in the original equation

(a-b)³+(b-c)³+(c-a)³ can be written as 3(a-b)(b-c)(c-a) since (a−b)= x, (b−c)= y and (c−a)= z.

3(a-b)(b-c)(c-a): (a-b)(b-c)(c-a)

= 3 ∵Common factor (a-b)(b-c)(c-a) gets cancelled out

Answer to the above question is 3

7 0

3 years ago