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What is the sum of the first 100 positive multiples of 4?
To find the sum of the first 100 positive multiples of 4, we can use the formula for the sum of an arithmetic series: Sn = n/2 * (a1 + an), where Sn is the sum, n is the number of terms, a1 is the first term, and an is the last term. In this case, a1 = 4, an = 4*100 = 400, and n = 100. Plugging these values into the formula, we get: Sn = 100/2 * (4 + 400) = 50 * 404 = 20,200. Therefore, the sum of the first 100 positive multiples of 4 is 20,200.
What times 3600 equals 400?
Well, honey, 400 divided by 3600 equals 0.1111. So, technically speaking, 0.1111 multiplied by 3600 does indeed equal 400. But let's be real, that's not a common way to phrase it. Just call it a day and use a calculator, darling.
How many inches is 400 cm?
1 inch = 2.54 cm Hence in 400 cm there are 400 /2.54 cm = 157.48 inches. 157.48 inches = 13 ft. 1.48 inches = 4 yds 1 dt 1.48 inches.
What is 400 km convert to mph?
Please note that km is a distance, while mph is a speed, so you can't convert that directly. For a speed problem, first convert the kilometers to miles, then use the formula: distance = speed x time
72 is 18 percent of what number?
Use the names of operations to convert this to an algebraic equation: "is" means "=" Percent means "/100" (divided by 100) "of" means "*" (multiply) "what number" means to insert your favorite letter for a variable (usually the letter x) 72=18/100 * x 72 = .18x 72/.18 = x 400 = x Mental Check: 10% of 400 is 1/10 of 400 which is 40. 20% of 400 is 2/10 of 400 which is 80. Is 72 larger than 40, less than 80 but closer to 80? Yes. So I think we're at least close. Use your calculator: 18% of 400 or .18 * 400 = 72!!
