What is the sum of the first 60 positive integers?. (Points : 1). 60. . 61. . 1800. . 1830
Answers
if 0 is a positive integer
sum=0+1+...+59=(0+59)*60/2=59*30=1770
else
sum=1+2+3+...+60=(1+60)*60/2=61*30=1830
end if
Answer D: 1830
In US, 0 is not positive, in Europe yes!!!
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And i need help with these problem.An alloy of tin is 15% tin and weighs 20 pounds. A second alloy is 10% tin. How much (to the nearest tenth lb.) of the second alloy must be added to the first alloy to get a 12% mixture. ______ pounds
Solve 2(x−5)^1/3=−16
Tom is twice as old as Mary, but he is 2 years younger than Jim. What is Mary's age if Jim will be twenty years old in 2 years time?
/_A and /_B are vertical angles. If m_A = (2x – 4) and mZB = (x + 1)º,then find the value of x.
2. (3,1) and (3,-1)
Answers
Once you plug that in you should get the final answers of
1. slope = 3
2. slope = -2/0 which is undefined which means this slope would be part of a vertical line
Answers
108 is 144% of what number?
108 = 144% of x
108 = 144% * x
108 = 1.44x
1.44x = 108
x = 108/1.44
x = 75
Answer: 108 is 144% of 75.
Answers
Calculate the area of the circular field if its radius is 110m and express this area in hectares?
A≈38013.27m²
b. For what amount of weekly sales us plan B better than plan A?
Answers
Answer:
a)
Expression for plan A:
Total weekly earnings =
Expression for plan B:
Total weekly earnings =
b)
As long as is less than 1000 plan B is profitable.
Step-by-step explanation:
a)
Expression for plan A:
Total weekly earnings =
Expression for plan B:
Total weekly earnings =
b)
For plan B to be better the amount earned by plan B for a specific number of sales should be greater than amount earned by plan A.
Therefore, we can write the following inequality:
Now we can simplify the above inequality to find at which value of it will be profitable to used plan B.
So as long as is less than 1000 plan B is profitable.
Expression A: S= 100+ 100(0.15y) y=Commission
Expression B: S= 150+ 150(0.10y)
Now to get Part B done. Plug in numbers for Y and use the results as the sales continue to increases. For example, start with 5 sales, then go to 10 then 15, and so on and so fourth. Hope I was able help you understand the question a little bit more! :)
Answers
It's weight would be: x*150 / 100
Where, x= weight of nickel
Final answer:
A nickel weighs 5 grams. As a dime is said to weigh 50% as much as a nickel, we calculate 50% of 5 to find the weight of the dime, which gives us 2.5 grams.
Explanation:
The subject of this question is in the context of Mathematics, more specifically proportional relationships. The weight of a nickel is 5 grams. As mentioned, a dime weighs 50% less than a nickel. So to find the weight of the dime, we calculate 50% of 5 grams.
First, to find 50%, we need to divide by 100 and then multiply by 50. That is: (5 / 100) * 50 = 2.5 .
So, a dime weighs 2.5 grams. Always remember, weight measurements can have slight variations depending upon measurement techniques and tools used. For instance, if you place a coin on a standard electronic balance, you may obtain a weight of 2.5 g with a nominal uncertainty in the measurement of ± 0.01 gram. However, in a general sense for our calculation with given data, the weight of a dime is indeed 2.5 grams.
Learn more about Proportional Relationships here:
#SPJ3
Answers
Answer:
would that be 12
Step-by-step explanation: