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GrogVix [38]
3 years ago
13

What is 21/9 in simplest form

Mathematics
1 answer:
Vedmedyk [2.9K]3 years ago
6 0
Exact form: 7/3
mixed number form: 2 1/3
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The values of x and y are proportional. Determine the constant of proportionality(k)
Studentka2010 [4]
<h3>The constant of proportionality is k = 5</h3>

For direct proportion equations, you divide the y value over its corresponding x value to get the value of k.

For example, the point (x,y) = (2,10) is on the diagonal line. So k = y/x = 10/2 = 5.

Another example: the point (x,y) = (6, 30) is also on the same diagonal line, so k = y/x = 30/6 = 5 is the same result as before.

You can use any point on the diagonal line as long as it is not (0,0). This is because division by zero is not allowed.

side note: the direct proportion equation y = k*x becomes y = 5*x which is the graph of that diagonal line. The slope is m = 5, the y intercept is b = 0. All direct proportion graphs go through the origin as shown in the diagram.

3 0
3 years ago
if you have budgeted 12% of your monthly income for groceries how much can you spend on groceries if you earn 950 bi-weekly
Leviafan [203]

Answer:

$247

Step-by-step explanation:

It depends.

Most months, you will earn $1900, so your budget will be ...

... 12% × $1900 = $228.

In one month out of 6, you will earn $2850, so your budget can be ...

... 12% × $2850 = $342.

_____

If you average out your earnings over 6 months, and compute your budget on that basis, then your monthly grocery budget is ...

... ($950 × 13)/6 × 12% = $247

7 0
3 years ago
Whats the gcf of 15 and 70
makvit [3.9K]
The gcf of 15 and 70 is 5
8 0
3 years ago
Read 2 more answers
Roger has $2, $1 and 50 cent pieces in the ratio of 5:4:2. If 30 of roger’s coins are 50 cent pieces, how many $2 coins and $1 c
rosijanka [135]

Answer:

Step-by-step explanation:

So the ratio is 5:4:2

there are 11 parts to this ratio (5+4+2)

the 5 is for the $2, the 4 is for the $1 and the 2 is for the 50 cents

he has 30 of the 50 cents

so you divide 30 by 2 to get one part of this ratio

1 part of this ratio is equal to 15 coins

multiply 15 by 5 to get the number of $2 coins: 75

multiply 15 by 4 to get the number of $1 coins: 60

add all of those parts together

30+60+75 = 165

If he uses a $1 coin to buy the sundae he will have 75 $2 coins and 59 $1 coins left

however, if he uses two 50 cents coins to buy the sundae he will have 75 $2 coins and 60 $1 coins left

4 0
3 years ago
Read 2 more answers
HELP Determine which lines, if any, must be parallel. Check all that apply. HELP WITH THE ENTIRE QUESTION
Law Incorporation [45]

Answer:

a b

m n

the 2nd one

Step-by-step explanation:

4 0
3 years ago
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