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Nata [24]
4 years ago
8

How many questions need to be answered correctly to receive a score of 80%?dhow your work

Mathematics
1 answer:
dangina [55]4 years ago
6 0
It depends on how many questions there are
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Steve built a square dog pen that has a perimeter of 240 inches. What is the length of one side of Steve's dog pen?
Liono4ka [1.6K]
240 divided by 4 equals 60
6 0
3 years ago
Read 2 more answers
<img src="https://tex.z-dn.net/?f=x-%5Csqrt%7Bx%7D%20-2" id="TexFormula1" title="x-\sqrt{x} -2" alt="x-\sqrt{x} -2" align="absmi
Nata [24]

Answer:

(sqrt(x) +1)(sqrt(x)-2)

Step-by-step explanation:

x - 2 \sqrt{x}  +  \sqrt{x}  - 2 \\  \sqrt{x} ( \sqrt{x}  - 2) + 1( \sqrt{x}  - 2 ) \\ ( \sqrt{x}  + 1)( \sqrt{x}  - 2)

4 0
3 years ago
Algebra problem help
True [87]
To solve this problem you must apply the proccedure below:

 1. You have that one canned juice drink is 20% orange juice and another is 5% orange juice.

 2. You must make a system of equation, as below:

 x+y=15  (i)
 0.20x+0.05y=0.15x15   (ii)

 3. Now, you must find the value of x (the liters of the first canned needed) and y (the liters of the other canned needed):

 x+y=15  (i)
 x=15-y

 0.20x+0.05y=0.15x15   (ii)
 0.20(15-y)+0.05y=2.25
 y=5 liters

 x+y=15  (i)
 x=15-5
 x=10 liters

 4. Therefore, the asnwer is:

 10 liters of the canned juice drink that is 20% orange juice and 5 liters of the other canned juice drink that is 5% orange juice.

 
4 0
3 years ago
Aiden and gia went to a clothing store where all the items had a 7% sales tax added to their cost. before the tax was added aide
pshichka [43]

Answer:

a. $34.24

b. $33

Step-by-step explanation:

Hope this helps

5 0
3 years ago
Read 2 more answers
Plz Help!!! And plz explain how you got the answer. Will give brainiest
Aleks [24]
D is the answer and here’s why
4 0
3 years ago
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