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lisabon 2012 [21]
3 years ago
12

ANY HELPPPPP PLZ I WILL AMRK YOU BRILLLLLLLLL

Mathematics
1 answer:
Stella [2.4K]3 years ago
5 0

Answer:

The correct answer is 27

Step-by-step explanation:

- 5a - b

- 5(-6) - 3

30 - 3

= 27

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The number of students in Mrs. Patrick's piano class decreased by 15% in 2 years to 17 students. How many students did she have
guapka [62]

Answer:

20 students

Step-by-step explanation:

If the class decreased by 15%, the students that she has now (17) represents a percentaje of:

100% - 15% = 85%

so<u> the 17 students are 85% of what she had</u>:

Students         Percentage

      17          ⇒        85%

and we are looking for how many students she had 2 years ago, thus we are looking for the <u>100%</u> of students (the original number of studens). If we represent this number by x:

Students         Percentage

      17          ⇒        85%

      x          ⇒        100%

and we solve this problem using the <u>rule of three</u>: multiply the cross quantities on the table( 17 and 100) and then divide by the remaining amount (85):

x = 17*100/85

x = 1700/85

x=20

2 years ago she had 20 students

6 0
3 years ago
What fraction does 4 triangles represent when 1 hexagon is worth 1 whole
strojnjashka [21]

Answer: 2/3

Step-by-step explanation: a hexagon is made up of 6 triangles so it would be 4/6 which can be simplified is 2/3

4 0
2 years ago
A car dealership has various combinations of vehicles in their car lot, all of which have an equally likely change of being sele
Effectus [21]

Answer:

The probability of a car being selected will be given by :the number of car required/ the total number of cars

Step-by-step explanation:

Probability is the likelihood of an event occurring.

This is given by : number of required outcome/number of possible outcome

7 0
3 years ago
Finding Decimal Products Which statements are true for the product of 0.2 and 0.2? Check all that apply. The product will be sma
scoray [572]

Answer:

0 The product will be smaller than both the factors.

0 There will be a zero in the tenths place.

0 The answer is 0.04.

6 0
2 years ago
Solve for u<br> 3(2u+5)=33<br> Simplify your answer as much as possible.
Pie
6u+15=33
6u=33-15
6u=18
u=3

U = 3 Is the answer!!!
HOPE THIS HELP!! :D
4 0
3 years ago
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