(please help) look at the picture below
1 answer:
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First, you would need to determine how many questions he got correct.
30 - 12 = 18
Next, you would need to create an equation for this problem. Let x represent the unknown percentage.
= 
Now, you would cross multiply.
30x = 1,800
The last step would be to isolate the x. To do this, you would divide both sides of the equal sign by 30.
x = 60
Ahmad got 60% of the questions correct.
I hope this helps!
30 - 12 = 18
Next, you would need to create an equation for this problem. Let x represent the unknown percentage.
Now, you would cross multiply.
30x = 1,800
The last step would be to isolate the x. To do this, you would divide both sides of the equal sign by 30.
x = 60
Ahmad got 60% of the questions correct.
I hope this helps!
Answer:
3rd Option and 4th Option
Step-by-step explanation:
Note: The options to the question is attached as picture below
<u>1st case</u>
Initial deposit (P) = 500
Annual interest rare (r) = 2.5%
Account balance after x years, y = P(1+r/100)×
y = 500(1+2.5/100)×
y = 500(1+0.025)×
y = 500(1.025)× ----- 3rd option
<u>2nd case</u>
Initial deposit (P) = 400
Annual interest rare (r) = 2%
Account balance after x years, y = P(1+r/100)×
y = 400(1+2/100)×
y = 400(1+0.02)×
y = 400(1.02)× ---- 4th option
