Answer:
c. two real solutions
Step-by-step explanation:
x = -5 , x = 1.5
Answer:
It would take 34.5 minuets for 9 people to paint 9 walls
Step-by-step explanation:
Divide 23 by 2 and you sound get 11.5
and 11.5 to 23 to get 34.5
The reason you must do it like this is because if they all do it at the same rate you need to know how long it would to for 3 people to do it so that you have a minimum point, then add the mid and min points to get the max point, 9 people.
Part (a)
Let's replace x with 15 and evaluate to see if he is correct or not.
x/2 - 3 = 6
15/2 - 3 = 6
7.5 - 3 = 6
4.5 = 6
We get a false statement after simplifying everything. We need to get the same number on both sides to get a true statement. Therefore, Ahmed is not correct.
<h3>Answer: No, he is not correct</h3>
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Part (b)
Let's solve for x. We do so by first adding 3 to both sides, and then multiplying both sides by 2. This follows PEMDAS in reverse, undoing everything to isolate the variable.
x/2 - 3 = 6
x/2 = 6+3 .... add 3 to both sides
x/2 = 9
x = 9*2 .... multiply both sides by 2
x = 18 is the answer
As a check, we'll use the same idea as part (a)
x/2 - 3 = 6
18/2 - 3 = 6
9 - 3 = 6
6 = 6
We get a true statement this time. This confirms x = 18
<h3>Answer: x = 18</h3>
Answer:
yes because it is odd
Step-by-step explanation: