Answer:
1200 words
Step-by-step explanation:
If he types 40 words a minute, you have to multiply that by thirty because he typed 40 words 30 timers. 40 x 30=1200
184.2 is the answer to 4 significant figure
Company a = 22 + 0.07m
company b = 8 + 0.12m
We are looking for the time when the prices are equal. i.e. the price of company a = the price of company b
company a = company b
22 + 0.07m = 8 + 0.12m
22 - 8 = 0.12m - 0.07m
14 = 0.05m
m = 14/0.05
m = 280
Therefore, the two companies will cost the same if you talk for 280 minutes
The answer is "b"
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The indepentent variable influences the dependent variable
the value of the depdendent variable is dependent on the value of the independent variable
y=f(x)
solve for y in terms of x
y-x-4=0
add x+4 to both sides
y=x+4
f(x)=x+4 is the answer
