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nevsk [136]
2 years ago
8

What is the answer and steps to 18(2 − 1) ÷ 3 + 4

Mathematics
2 answers:
mina [271]2 years ago
4 0

Hi! When you see problems like this, always refer to PEMDAS!

P - Parenthesis

E - Exponents

M - Multiplication

D - Division

A - Addition

S - Subtraction

Also note that you go from left to right and parenthesis is always first!

18(2-1)÷3+4

Start with the parenthesis and subtract 2 from 1. That'll leave you with 1.

18(1)÷3+4

Next is multiplication since there are no exponents. Multiply 18 by 1. That'll leave you with 18.

18÷3+4

Now, divide 18 from 3. That'll leave you with 6.

6+4

Finally, you may add the final two. 6 plus 4 is 10.

With that being said, the correct answer is 10.

posledela2 years ago
3 0

The answer is 10, by using pemdas you can just either add, subtract, multiply or divide.

10

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The sum of two numbers is x. If one of the numbers is 12, what is the other ?
Vlad1618 [11]
If the sum of two numbers is x

Then the equation is like this:

a+b = x

Then it says one of the number is 12. Change either a or b into 12

12 + b =x

If we want to find the other number, we need the make it into the subject

b = x - 12

Hope that help.
6 0
3 years ago
Read 2 more answers
A population of 1,750 cheetahs decreases by 10% per year. How many cheetahs will there be in the population after 11 years? Roun
Triss [41]

Answer:

The answer is C. 546.

If a population decreases by 11%, that means that 89% (100% - 11% = 89%) of cheetahs remains each number. 89% can be expressed as 0.89, so to calculate the change of the population, we must each year multiply the number of cheetahs by 0.89.

After 1 year:     1750 * 0.89 ≈ 1558

After 2 years:  1558 * 0.89 ≈ 1387

After 3 years:  1387 * 0.89 ≈ 1234

After 4 years:  1234 * 0.89 ≈ 1098

After 5 years:  1098 * 0.89 ≈ 977

After 6 years:  977 * 0.89 ≈ 870

After 7 years:  870 * 0.89 ≈ 774

After 8 years:  774 * 0.89 ≈ 689

After 9 years:  689 * 0.89 ≈ 613

After 10 years:  613 * 0.89 ≈ 546

Step-by-step explanation:

4 0
3 years ago
What is 700 divided by 360
OlgaM077 [116]

Answer:

1.94444444444

6 0
3 years ago
Read 2 more answers
How do I fine the sun and difference of number 16?
UkoKoshka [18]
To find the sum, add. To find the difference, subtract. It's simple terminology in mathematics. Hope I helped!
5 0
3 years ago
HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!ASAP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Viktor [21]

Answer: Bert's salary didn't increase while Ernie's salary increased by 11 percent.


Step-by-step explanation:


645 / 580 = 1.11

Simple:

1.11 * 100 = 111

100 is a whole so we subtract 100 from 111 to get 11.

11% is our answer.


It doesn't look like Bert's salary changed, 520 =/ 520


5 0
3 years ago
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