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elena-s [515]
2 years ago
5

Do you have good methods to calculate percentage mentally? Plz give me some good tips. I will also be giving BRAINLIEST!!!!

Mathematics
2 answers:
user100 [1]2 years ago
4 0

Answer:

If trying to find precentages Like 75% first try to find 50% and 25% and add them together.

Step-by-step explanation:

for example:

75%=50%+25%

to find 50% well just divide the number by half and to find 25% divided the number by 4. Then add these number to get 75%!

kati45 [8]2 years ago
3 0

Answer: well me if I want to find a percentage of a number I turn the percent into a decimal.

Step-by-step explanation:

Example- 15% of 60

0.15*60= 9

15% of 60 is 9

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List the numbers that have 30 as a multiple
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First we list the multiples of each number.
multiples of 5 are 10,15,20,25,30,35,40,...
multiples of 6 are 12,18,24,30,36,42,48,...
multiples of 15 are 30,45,60,75,90,...
now, when you look at the list of multiples, you can see that 30 is the smallest number that appears in each list.
therefore, the least common multiple of...... 5,6 and 15 is 30.
3 0
3 years ago
Peter makes $7000 a month plus some money by commission rates. He gets 6% of everything he sells. If peter sold $55000 worth of
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He made a total of $10,300 that month
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2 years ago
4/5 of a number is 32​
andrew11 [14]

Answer:

x = 40

Step-by-step explanation:

Step 1: Write out an equation

4/5(x) = 32

Step 2: Solve by dividing both sides by 4/5

x = 32/(4/5)

<em>Use KCF (Keep Change Flip) if you do not have a calc.</em>

x = 40

6 0
3 years ago
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Using the quadratic formula to solve 4x^2-3x + 9=2x + 1 what are the values of x​
Alchen [17]

Answer:

x=5±√−103/8

Step-by-step explanation:

There's no real solutions

4x2−3x+9−(2x+1)=2x+1−(2x+1)

4x2−5x+8=0

x=−b±√b2−4ac/2a

x=−(−5)±√(−5)2−4(4)(8)/2(4)

x=5±√−103/8

8 0
3 years ago
Find the LCM of 3,12,16​
maria [59]

Answer:

The lcm is 48. Hope this helps

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3 years ago
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