Answer:
Step-by-step explanation:
Let the equal number of hours be represented by variable H;
The two equations will be as follows;
Jack; 40 +30H
Mark; 50 +25H
Next, equate them;
40 + 30H = 50 + 25H
30H - 25H = 50 - 40
5H = 10
H =10/5
H = 2hrs
Therefore, they charge the same amount at 2 hrs.
B.) The amount charged;
Replace the variable H in any of the two equations above with 2 to solve for the amount.
Equation 40+30H = 40 + (30*2)
=40 + 60
= $100
X²+4x+8=0
use the quadratic formula: (sorry cannot type it here)
√(b²-4ac)=√(4²-4*1*8)=√(16-32)=√(-16)=+/- 4i
x=(-4+4i)/2 or (-4-4i)/2
x=-2+2i or x=-2-2i
the answer is A
Hi there!
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I believe your answer is:
C) x = 16
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Here’s why:
- We will use inverse operations to solve for 'x'.
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Hope this helps you. I apologize if it’s incorrect.
Answer:
40 percent
Step-by-step explanation:
60 - 20 = 40
Reasoning: The amount of seniors that attended was 20 percent, so 60 (total students) percent minus 20 percent is equal to 40 percent.
Hope this helps!
Answer:The answer is 34 with no remainder.
Step-by-step explanation:When you divide 3060 by 90 you get a whole number of 34 with no remainder.