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Phoenix [80]
3 years ago
7

A test has 20 questions how many do you need to answer correctly in order to get 4/5 of them right

Mathematics
2 answers:
Ket [755]3 years ago
7 0

4/5 x 20 = 16


Answer: 16 questions

lora16 [44]3 years ago
5 0

To figure out the question, we can do 20 multiplied by 4/5, aka 0.8, and we get 16 questions as our answer!

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9(x + 8) + 11(3x + 4)
Sav [38]
Simplify the expression : 42x + 116

Hope this helps!
Have a great day!

5 0
3 years ago
I WILL GIVES BRAINLIEST!!!!
andrew-mc [135]

Answer:

3 1/3 cups

Step-by-step explanation:

one and one half dozen = 1.5 * 12 = 18 cookies


18 cookies    90 cookies

---------------- = -------------

2/3 cup          x cups

using cross products

18 * x = 2/3 * 90

18 x = 60

divide each side by 18

x = 60/18    

divide top and bottom by 6

x = 10/3

change the improper fraction to a mixed number

3 goes into 10 3 times with 1 left over

x = 3 1/3 cups


6 0
3 years ago
4(x + 10) < 20 What is the answer
lukranit [14]

Answer:

x < -5

Step-by-step explanation:

Distribute 4 to x and 10: 4x + 40 < 20

Subtract 40 from both sides: 4x < -20

Divide by 4: x < -5

6 0
2 years ago
What is the general form of the equation for the given circle centered at o (0,0) (4,5)?
charle [14.2K]
The general equation of the circle is expressed as (x-h)2 + (y-k)2 = r2 where (h,k) is the center of the circle. we are are given the center of the circle at (0,0) so the expression is simplified to <span>(x)2 + (y)2 = r2. given the other point, r2 is equal to 41. hence the final equation is x2 + y2 = 41</span>
8 0
3 years ago
Big ideas math cumulative practice
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There are 30 kids in the class and 6 voted for Sunday which means that there is a 6/30 chance that the student picked Sunday or a 20% chance the kid picked Sunday.
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