1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
olasank [31]
2 years ago
9

Work out 21 as a fraction of 12

Mathematics
1 answer:
siniylev [52]2 years ago
8 0

Answer:

see below

Step-by-step explanation:

1 9/12 = > 1 3/4

........

You might be interested in
Abigail earned $10.26 for babysitting her cousin for 3 hours. How much did she earn in each hour?
scoundrel [369]

Divide total earned by number of hours:

10.26/3 = $3.42

She earned $3.42 per hour

5 0
3 years ago
Read 2 more answers
10. Determine if the equation x - y = 1 defines y as a function of x.
vampirchik [111]

Answer:

No.

Step-by-step explanation:

First solve for y:-

x - y^4 = 1

y^4 = x - 1

y = +/- (x - 1)^(1/4)

This is a one-to-many relation . For a given value of y there  2 values of x.

So this is NOT a function.

3 0
3 years ago
Is the relation below a function? Why or why not? name the domain and range.
Salsk061 [2.6K]

Answer:

It is not a function because it is not linear. If you place the coordinates in order of the x coordinates you can see that some of the y's are the same, and therefore do not have a pattern. This makes them non linear. The domain is -4≤x≤3, and the range is 0≤x≤4



4 0
3 years ago
A certain radioactive isotope decays at a rate of 0.3​% annually. Determine the ​half-life of this​ isotope, to the nearest year
Liono4ka [1.6K]

This could be rephrased as:

You start with 100 grams of a substance.  One year later you have 70 grams.  What is the half-life?

We need this formula:

half-life = (time * natural log (2)) / natural log (beginning amount / ending amt)

half-life = (1 year * .69315) / natural log (100 / 70)

half-life = (.69315) / 0.35667494396

half-life = 1.9433661145 years

Rounding to nearest year half-life = 2 years

Sourse: https://www.1728.org/halflif2.htm

(See problem 3)


7 0
4 years ago
Learning Task 1: Illustrate the following fractions on your notebook.
Marizza181 [45]

Answer:

The illustration is found in the attachment below.

<em>Note: The correct order of the question is found below:</em>

<em>Learning Task 1: Illustrate the following fractions on your notebook.</em>

<em>a.)2/3 b.)7/9 c.)10/12 d.)8/12 e.)4/5 f.) 8/6 g.)9/4 h.) 28/10</em>

Step-by-step explanation:

a) Draw a rectangle of sides 3 cm by 1 cm. Divide the rectangle into three equal parts. Shade two out of the three parts to give the fraction 2/3

b)  Draw a rectangle of sides 9 cm by 1 cm. Divide the rectangle into nine equal parts. Shade seven out of the nine parts to give the fraction 7/9

c)  Draw a rectangle of sides 12 cm by 1 cm. Divide the rectangle into twelve equal parts. Shade ten out of the twelve parts to give the fraction 10/12

d)  Draw a rectangle of sides 12 cm by 1 cm. Divide the rectangle into twelve equal parts. Shade eight out of the twelve parts to give the fraction 8/12

e)  Draw a rectangle of sides 5 cm by 1 cm. Divide the rectangle into five equal parts. Shade four out of the five parts to give the fraction 4/5

f)  Draw two rectangle of sides 6 cm by 1 cm. Divide the rectangles into six equal parts each. Shade all the six parts of the first rectangle completely. Then, shade two out of the six parts of the second rectangle to give the fraction 8/6

g) Draw three rectangles of side 4 cm by 1 cm. Divide each of the three rectangles into four parts each. Shade completely the four parts of the first and second rectangle. Then, shade one part out of the four parts of the third rectangle to give the fraction 9/4

h) Draw three rectangles of side 10 cm by 1 cm. Divide each of the three rectangles into ten parts each. Shade completely the ten parts of the first and second rectangle. Then, shade eight parts out of the ten parts of the third rectangle to give the fraction 28/10

6 0
3 years ago
Other questions:
  • Reggie was looking at a map of the school the scale shows that 1 inch equals 150 ft if the distance between his classroom in the
    14·2 answers
  • Multiplication of fractions can be represented in two ways: _____________ and ____________
    13·1 answer
  • A cleaning crew can clean 5 offices in 6hours.how many offices can they clean in 12 hours
    9·2 answers
  • Tony earns $200 per week 5 dollars for every magazine subscription that she sells how much in dollars will she earn in a week in
    9·1 answer
  • Hey, could someone help me finish this please?
    15·1 answer
  • UAAAAAAAAGAAAAAAGAAAAAAAHG GET OUT OF MY HEAD!!
    10·1 answer
  • Can you help me solve this?​
    8·2 answers
  • Determine the slope of the line whose equation is 2x-3y=5
    11·1 answer
  • Question Category: Solving Quadratic Equations by Factoring Select the correct answer. Find the solution(s) for x in the equatio
    12·1 answer
  • Integers less than negative 3
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!