Mathematics Middle School

20% of a is 18. What is a?

Answers

Answer 1

Answer:

3.6

Step-by-step explanation:

All you have to do is divide it.

Answer 2
90 is the answer for your question

Related Questions

The variable in the equation 26 = 1 – 3r is r. Remembering the form ax + b = c, what are the values of the constants, a, b, and c in the equation?

Answers

The value of the constant a, b and c in the equation are -3, 1 and 26 respectively.

What is variable?

Variable are numbers represented by letters in a mathematical equation. Therefore,

26 = 1 - 3r

Using the form ax + b = c, where a, b and c are constant.  

The value of a, b and c in the expression 26 = 1 - 3r can be solve as follows:

-3r + 1 = 26

Therefore,

a = -3b = 1c = 26

learn more on variable here: https://brainly.com/question/12035180

Answer:

A=-3

B=1

C=26

Step-by-step explanation:

During a winter cold spell the temperature change was -1.2 f per hour for a period of 4.5 hours which expressions can be used to find the overall change in the temperature during that time period.

A.) 4.5 divided (-1.2) degrees Fahrenheit

B.) 4.5x (-1.2) degrees Fahrenheit

C.) 4.5 - (-1.2) degrees Fahrenheit

D.) (-1.2)+(-1.2)+(1.2)+(1.2) degrees Fahrenheit

E.) 4(-1.2)+(0.5)(-1.2) degrees Fahrenheit​

Answers

Answer:

B.) 4.5x (-1.2) degrees Fahrenheit

Carlos recorded the weight of several bags of potatoes. He then counted the number of potatoes in each bag. The scatterplot below represents the relationship between the number of potatoes in a bag and the weight of the bag.

A.10 pounds
B.8 pounds
C.55 pounds
D.50 pounds

Answers

Answer:

A

Step-by-step explanation:

Answer: let me know when you repost the question

Step-by-step explanation:

Mai biked 6 and 3/4 miles today, and Noah biked 4 and 1/2 miles. How many times the length of Noah's bike ride was Mai's bike ride?

Answers

Answer:

2/3 times as far

Step-by-step explanation:

1.5 times
So, to know how many times the length of Noah's bike ride was Mai's bike ride, we can use the following equation: Therefore, Mai biked 1.5 times more miles than Noah

The volume of the rectangular prism is 16 cubic cm. The length is 2 and 1/3 cm and the width is 4 cm. What is the height?

Answers

Answer:

The answer is 1 and 5/7 cm

Step-by-step explanation:

Fill in the blanks to complete the equation that describes the diagram.

Answers

Answer:

4+ -6 = -2

Hope this helps! Have a nice day!

Step-by-step explanation:

Find the equation of a line that is perpendicular to the line y=1/9x+4 and contains the point (-9,0).​

Answers

Answer:

When you are finding a line that is perpendicular, you need to look at the slope. In the format, y=mx+b, the m represents the slope. In this case, the slope (m) of the line is -1/9. A line with a perpendicular slope is the negative inverse. The negative inverse for -1/9 is 9/1. Once you know the slope, you can begin to plug in the new information in order to find the new b (y intercept).

New Line information:

m=9/1, (2,-5) --> this means that x = 2 and y = -5

y=mx+b

-5 = 9/1(2) + b

-5 = 18 + b

-23 = b

Once you find the b, you plug the b and m into the equation y = mx + b

y = 9/1x -23

Step-by-step explanation:

9(2x + 15) = 45
Can you help me?

Answers

Answer:

= -5

Step-by-step explanation:

First you would use distributive property and multiply the 9 and 2 (18x) then 9 and 15 (135)
Now you have 18x+135=45 so you need to get X alone by using inverse operations and subtract 135-45 (90)
18x=90 now you divide 18 and 90 and your answer is x=5

John wants to find the perimeter of a square with side length 2p - 5. Write two expressions that represent the perimeter, including one expression in simplest form.

Answers

Answer:

i dont know

Step-by-step explanation:

One expression is 4(2p - 5) and the simplest form of this is 8p -20

BRAINLIEST PLEASE HELP WICH ITEMS DO I DRAG INTO THE BOXES BE SPECIFIC ONLY ANSWER IF YOU'RE 100% CORRECT

Answers

Answer:

first box answer is 4 tens, 7 ones, and 6 tenths

second box answer is  4 ones, 7 hundredths, 6 thousandths

third box answer is 4 tenths, 7 hundredths, 6 thousandths

Answer:

4 tens 7 ones 6 tenths goes to 47.6..... 4 ones 7hundreths 6thousandths goes to 4.076.... 4 tenths 7 hundredths 6 thousandths goes to 0.476

Step-by-step explanation:

Hope this helps

12 + 3 to the power of 2 + 50

(using PEMDAS)

Answers

First you do 3 to the 2nd power which is 9 then you just add 12+9+50= 71

Answer:

71

Step-by-step explanation:

What are the steps to convert 6/15 into a decimal?


please say the steps and the answer if possible :)<3

Answers

Answer:

2.5

Step-by-step explanation:

you have to do division.

Answer: 2.5 all u really have to do is divide it equals .4

Step-by-step explanation:

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