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2 years ago

In order of operations do you add them subtract

2 answers:

6 0

Yes, parenthesis, exponents, multiplication, division, addition, subtraction.
PEMDAS
Unless, subtraction comes first (on the left)
Example:
1)
2+5*8-4
5*8 = 40
40+2 = 42
42-4 = 38

2) 4-5*8+9
5*8 = 40
40-4 = 36
36+9 = 45

Although sometimes you get the same answer from doing either first

jarptica [38.1K]2 years ago

5 0

Add first then subtract
p parentheses
e exponents
m multiply
d divide
a add
s subtract

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2 years ago

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myrzilka [38]

Answer:

Step-by-step explanation:

4). Given sequence → 3, 5, 7, 9, 11........

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Common difference = Successive term - previous term

= 2nd term - 1st term

= 5 - 3

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2 years ago

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There is a competition in the cinema to win free tickets. You must guess the ages of the four employees. Here are the clues: - W

jenyasd209 [6]

Answer:

Kirk is 28 years old, Brian is 36 years old, Matt is 18 years old, and the manager is 24 years old.

Step-by-step explanation:

Let $k$ be Kirk's age.

Let $b$ be Brian's age.

Let $m$ be Matt's age.

Let $m_{1}$ be the boss/manager's age.

From the information given, we can set up 4 equations:

$k+b+m+m_{1}=106$

$k=2(m_{1}-10)$

$b=2m_{1}-12$

$m=\frac{1}{2}m_{1}+6$

Rewrite the first equation, substituting $k$ , $b$ , and $m$ in terms of $m_{1}$ to get:

$2(m_{1}-10)+(2m_{1}-12)+(\frac{1}{2}m_{1}+6)+m_{1}=106$

Open up the parentheses using the distributive property (which is $a(b-c)=ab-ac$ ) and combine like terms to get:

$5.5m_{1}-26=106$

Add 26 to both sides to reach:

$5.5m_{1}=132$

Thus, $m_{1}=24$ . Substitute $24$ for $m_{1}$ in the second, third, and fourth original equations to find that $k=28$ , $b=36$ , and $m=18$ . Therefore, Kirk is 28 years old, Brian is 36 years old, Matt is 18 years old, and the manager is 24 years old. To check, you can add up all of the ages to get 106.

Hope this helps :)

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