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SashulF [63]
2 years ago
13

If 80% of a number is 20, what is 20% of the number?

Mathematics
1 answer:
Vlad1618 [11]2 years ago
5 0

Answer: 5

Step-by-step explanation:

20/4=5 which is 20%

5*5=25 which is the number

20% of the number is

100/20=5

25/5=5

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0.25k+1.5-k-3.50.25k+1.5−k−3.5
BARSIC [14]

Answer:

-0.75k - 2.0

Step-by-step explanation:

0.25k + 1.5 − k − 3.5

Combining like terms with rational coefficients

0.25k + 1.5 - k - 3.5

Collect like terms with rational coefficients

=0.25k - k + 1.5 - 3.5

= -0.75k - 2.0

Answer equals negative zero Point seven five k minus two point zero

7 0
3 years ago
A 28 foot ladder is propped against a wall. The base of the ladder is 19 ft from the wall how far up the wall does the ladder go
docker41 [41]

Answer:

20.6

Step-by-step explanation:

The problem can be solved by applyPythagoreanean theory

a^2+b^2= c^2

19^2 + b^2= 28^2

361 + b^2= 784

b^2= 784-361

= 423

b= √423

= 20.6

8 0
2 years ago
Cottage cheese is being sold in different size containers. The sizes and prices are given below:
BabaBlast [244]
If the point of the assignment is to get the most amount of cheese per dollar the answer is a.

You just divide the price with the number of ounces you buy and that will give you the price per ounce.

a = 5/(4*5) = $0.25 per ounce
b = 3.24/12 = $0.27 per ounce
c = 4.19/16 = 0.261875

therefore a is the best bang for the buck

Hope this helps :)
7 0
3 years ago
Read 2 more answers
Solve 13 +4x = 3x - 15 for x
natka813 [3]
Solving for x or x=-15
4 0
3 years ago
You begin the week with 20 units of milk. You purchase 40 units. Your ending inventory for the week is 30 units. How many units
Musya8 [376]

Answer:

30 units.  

Step-by-step explanation:

Let x be number of milk units sold.

It has been given that You begin the week with 20 units of milk. You purchase 40 units. Therefore, total units of milk will be 20+40=60 units.

It has been given that your ending inventory for the week is 30 units, which means after selling x units from 60 units you are left with 30 units.

We can set this information in an equation as:

60-x=30

-x=30-60

-x=-30

x=30

Therefore, you have sold 30 units.

8 0
3 years ago
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