Let x represent the amount of money he invested at 11% and y money he invested at 12%. Now we write system of equations:
x*1.11 + y*1.12 = 70 000 + 7900
x + y = 70 000
We will multiply second equation with 1.11
x*1.11 + y*1.11 = 77700
and subtract if from first:
0.01*y = 200
y = 20000
x = 70000 - 20000 = 50000
Step-by-step explanation:
<u>Step 1: Find the reasonable estimate</u>
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The closest number to 28 out of the option is 30. Therefore, the correct option is D.
Answer: Option D
Answer:
30 , 45 , 51 , 39
Step-by-step explanation:
You just add up the numbers until you get 165
Answer:
9 meters
Step-by-step explanation:
I don't know step by step if jts wrong tell me.