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nadya68 [22]
3 years ago
15

There is a jar of jellybeans on Principal Cooper's desk. 40% of the jellybeans are red. There are 28 red jellybeans. How many je

llybeans are there in all?
Mathematics
2 answers:
AnnyKZ [126]3 years ago
4 0
Take 40% to a decimal and times it by 28 you should get 11.
Pani-rosa [81]3 years ago
4 0

Answer:

take 40% to a decimal and times it by 28 you should get 11.

Step-by-step explanation:

You might be interested in
1) 35 is what percent of 140 2) 250 is 45% of what number? 3) 74 is what percent of 740? 4) 350 is 50% of what number?
densk [106]

Answer:

1) 25%

2) 555.56

3) 10%

4) 700

Step-by-step explanation:

1) 35 is what percent of 140

This is calculated as:

35/140 × 100

= 25%

2) 250 is 45% of what number?

Let the number be represented as x

This is calculated as:

45% of x = 250

45/100 × x = 250

45x /100 = 250

Cross Multiply

45x = 250 × 100

x = 25000/45

x = 555.55555556

x = 555.56

3) 74 is what percent of 740?

Let the percentage be represented by x

x% × 740 = 74

Divide both side by 740

x% = 74/740

x% = 0.1

Converting to percentage

0.1 × 100 = 10%

4) 350 is 50% of what number?

Let the number the represented by x

This is calculated as:

50% of x = 350

50/100 × x = 350

50x /100 = 350

Cross Multiply

50x = 350 × 100

x = 35000/50

x = 700

x = 555.56

5 0
3 years ago
Write an equation for the vertical line that contains point E(-12, 7). Is anybody able to help?
BigorU [14]

Answer:

x = -12

Step-by-step explanation:

Vertical lines take the form of x = something and horizontal lines take the form of y = something

Why is this? Notice that whenever you make a horizontal line on a graph and select virtually any point that's on that line, all of the points you pick will have the same y value. Try to imagine the same thing with a vertical line, are the results the same?

So the line x = -12 (we got -12 from the coordinate that was given to us on the question prompt) is a vertical line that passes through virtually all possible y values (from positive infinity to negative infinity, or vice-versa) which means that the question prompt having given us the y value was negligible.

Good luck!

5 0
3 years ago
Solve x2 + 14x = −24 by completing the square.<br><br> What is the solution set of the equation?
yan [13]
Hope this helps with the question :)

3 0
3 years ago
Read 2 more answers
Find the midpoint M of the line segment joining the points S = (1, -2) and T = (-7,-6).​
mafiozo [28]

Answer:

(-3 ,-4)

I have made it in above picture

hope it helps

3 0
2 years ago
What is the square root of 21
Andru [333]

Answer:

4.58

Step-by-step explanation:

21 is not a perfect square, but lies between the perfect squares 16 and 25.  Thus, √21 lies between √16 and √25, that is, between 4 and 5.  Since 21 is closer to 25 than to 16, √21 is closer to 5 than to 4.  A rough estimate of √21 would be 4.7.

√21 done on a calculator comes out to 4.58.

4 0
3 years ago
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