All categories

3 years ago

Divide 450 grams into ratio 7:2

1 answer:

6 0

Let us assume the common ratio = x
Then from the given question we can write
7x + 2x = 450
9x = 450
x = 450/9
   = 50
Then the quantity 450 grams can be divided in the ratio of 7 : 2 by = 7x:2x
      = (7 * 50) : (2 * 50)
      = 350:100
I hope this is the answer you were looking for and the procedure for finding the answer is also absolutely clear to you.

You might be interested in

Graph y=-2/3x-3 i need help quick

timurjin [86]

Answer: just get gud at math lol

Step-by-step explanation: no

5 0

3 years ago

Sal is participating in a charity walk. The distance Sal walks, in kilometers, is proportional to the number of hours he spends

vredina [299]

the attachment is not clear dude...

5 0

2 years ago

3/8 - 10/13 -7/5 -30/104 -41/104 -39/80

salantis [7]

Answer:

-41/104

Step-by-step explanation:

Simplify 3/8 and 10/13 then calculate the least common multiple, calculate multipliers, make equivalent fractions and Add fractions that have a common denominator for your final answer.

4 0

3 years ago

A diagram of a pizza is shown.

mash [69]

Answer:

A. 30 cm

Step-by-step explanation:

The surface area of a 14-inch pizza is 3.14 x 49 (7 x 7 = 49) = 153.86 square inches of surface area

4 0

2 years ago

For online courses, like those in eCore, there is a positive correlation between the amount of time spent in the course and the

Troyanec [42]

Answer:

Regression Line is given by,

y = 22.909 + 0.209 x

The course grade of a student in the course who spent an average of 103 minutes in the course each week is: 22.909 + 0.209 × 103 = 44.436

Step-by-step explanation:

The equation of Regression equation is of the form of:

y = a + bx

where, a is intercept and b is slope

The formula for a and b is given by,

$a=\frac{\sum Y \sum X^2-\sum X \sum XY}{n\sum X^2-(\sum X)^2}\\ and, b = \frac{n\sum XY -\sum X \sum Y}{n\sum X^2-(\sum X)^2}$

Here, ∑X = 1149.8, ∑Y = 377.2, ∑XY = 93115.95, ∑X² = 320246.72

Thus, a = 22.909

and b = 0.209

Thus, Regression Line is given by,

y = 22.909 + 0.209 x

Thus, The course grade of a student in the course who spent an average of 103 minutes in the course each week is: 22.909 + 0.209 × 103 = 44.436

Now plotting these line:

6 0

2 years ago