Write the ratio in three different formats: In a year, there are 4 months that have 30 days. Write a ratio of the months with 30 days to the months with other than 30 days. A.1 to 3, 1:3, 1/3B.1 to 2, 1 :2, 1/2C.2 to 1, 2:1, 2/1
D.3 to 1, 3:1, 3/1

Answers

Answer 1
Answer: This problem is an example of ratio and proportion. A ratio is a comparison between two different things. You are given 4 months that have 30 days. You are required to get the ratio of the months with 30 days to the remaining months that have a different number of days. First, you will get the ratio as 4/30 = 2/15. Assuming that the other months also has 30 days. Then the second ratio is 8/30 = 4/15. Multiply 2/15 to 15/4 you will get ½. Other forms of this is 1:2 or 1 is to 2. The answer is B.
Answer 2
Answer: so find the amount of months that don't haave 30 days
12 months total
4 have 30 days
12-4=8
so the ratio of months that have 30 days to the months that do not havve 30 days is 4 to 8 or 4:8
this can be simplified like a fraction
4:8  4/8=1/2
ratio is
1 to 2, 1:2, 1/2

answer is B

Related Questions

Choose the inequality that represents the following graph
8+y is greater than or less than 11
Round 2.36 to the nearest tenth ​
Hel in math pleeeaassseee
Which is bigger 4/5 or 9/10

What is black and white and has lots of problems​

Answers

In a math book we use blank ink with white pages. Thus, it is a math test.

Given information:

Black and white and has lots of problems​.

As per given in question, A test is prepared to check the knowledge obtained by a person during the study time. It was performed before the test presentation. Well, a math book can have black ink with white pages but also a math test can have black and white combination.

It is said to be full of problems because it is made to solve exercises on different topics. And it is said to be black and white because normally the sheets are white and the ink is black.

Therefore, it is a math test.

Learn more about math test here:brainly.com/question/14124586

Answer:

The answer is: A math test

Step-by-step explanation:

A test is designed to assess the knowledge obtained by a person during the study time that was performed before the test presentation.

It is said to be full of problems because it is made to solve exercises on different topics.

And it is said to be black and white because normally the sheets are white and the ink is black.

2/3 times what equals 1

Answers

2/3 times 3/2 equals 1.

2/3*x=1

Find the number which is x

2/3x=1

Multiply both sides by 3/2 to get x by itself

2/3x(3/2)=1(3/2)

Cross out 2 and 3. Divide by 2 and 3. Then becomes 1*1*1*1*x=x

x=1(3/2)

pretend that there is a denominator for 1 which is 1

x=1/1(3/2)

Multiply the numerators together

1*3=3

Multiply the denominators together

1*2=2

Answer:

x=3/2

Eight less than 7.2 times a number is -29.6 wrote out in numbers

Answers

7.2x - 8 = -29.6  that is your answer wrote out in numbers.

Final answer:

To find the number, solve the equation: 7.2x - 8 = -29.6

Explanation:

To solve this problem, let's represent the unknown number as 'x'. The equation can be written as 7.2x - 8 = -29.6.

To isolate 'x', we can add 8 to both sides of the equation: 7.2x = -21.6.

Then, divide both sides of the equation by 7.2 to solve for 'x': x = -3.

Learn more about Solving Equations here:

brainly.com/question/29050831

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What is the rule for finding the ratio of the areas of two objects if you know the scale?

Answers

Answer:

The square of the scale

Step-by-step explanation:

Scaling

Suppose we know the scale of the distances, for example, r=5. It means that for each centimeter in the drawing, it corresponds to 5 cm in the real object being scaled. If we wanted to find the ratio of the areas, we would need to scale both dimensions and the ratio would be the square of the scale factor. In our example, the ratio of the areas would be 25, i.e. each square centimeter would correspond to 25 square centimeters

The rule for finding the ratio of the areas of two objects: The square of the scale

Please help me math problem

Answers

To solve this problem, you add all the numbers together and divide by the total amount of things. In this case, there are six scores, 210, 195, 213, 201, 226, and 155. You would add all of these things together, and then divide by six. All of these things added together equals 1,200. This divided by 6 is 200. David's average score would be a. 200. Hope this helps!

If (a,b) is the center and r is the radius of the circle defined by the parametric equationswhat is the value of a+b+r ?
x= 10cos 3t, y= 10sin 3t 0≤t≤ 2pi
This is a bonus problem it is extremely difficult

Answers


Those particular parametric equations generate a circle with its
center at the origin (0, 0).  So ' a ' and ' b ' are both zero.

The (radius of the circle)² is (10² + 10²) = 200

Radius = √200

So (a + b + r) = √200 .  ( about 14.1421 )

The significance of the ' 3t ' in the argument of the 'x' and 'y' is just that as
't' goes from zero to 2π , the parametric equations draw the circle 3 times.