Answer:
Step-by-step explanation:
follow the Pemdas order of operations
add and subtract (left to right)
apply the rule +(-a)=-a
+(-78)=-78
=54-78-(-39)
54-78=-24
=-24-(-39)
apply the rule -(-a)=+a
-(-39) =+39
=-24 +39
-24+39=15
=15
Answer:
Step-by-step explanation: fifty-four point zero three nine
Answer:
5:24
Step-by-step explanation:
15:72
3 is the greatest common factor
5:24
Answer:
There are 8 inventors.
Step-by-step explanation:
- Let 's' be the salesperson
Given that there are 3 more than twice as many salespeople as inventors.
Also given that the whole company has 27 employees.
i.e.
s + i = 27
substituting s = 3+2i
3 + 2i + i= 27
3 + 3i = 27
3i = 27 - 3
3i = 24
divide both sides by 3
i = 8
- Thus, there are 8 inventors.
<u>VERIFICATION</u>
As the total number of employees is 27.
so the salespeople will be:
s = 3+2i
= 3 + 2(8)
= 3 + 16
= 19
Thus, the total employees are verified as:
s + i = 27
19 + 8 = 27
27 = 27
Answer:
b = 1
Step-by-step explanation:
5 = 5b
b = 1