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polet [3.4K]
3 years ago
13

Kevin can travel 22 1/2 miles in 1/3 hour what is his average speed in miles per hour

Mathematics
1 answer:
steposvetlana [31]3 years ago
7 0
67.5 mph // 45/2 miles in 1/3 hour times 3 is 135/2 which is 67.5 mph
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If loss is L percent and cost price is the C.P what will be the selling price???
olga2289 [7]

Answer:

Step-by-step explanation:

25%=25/100= 1+4=5

1 is loss on selling price 4 so cost price =1+4=5

Then loss on cost price = 1/5x100=20%

6 0
3 years ago
Jackson bought 3 pounds of candies for $9.75 What was the price of these candies in cents per pound?
kakasveta [241]

If I’m correct, 3.25 would be the amount for each pound

6 0
4 years ago
How many times smaller is 2 × 10^-10 than 4 × 10^-5
natta225 [31]

Answer:

200,000

Step-by-step explanation:

To find how many times smaller is smaller number than greater number, divide greater number by smaller number.

Greater number =4\times 10^{-5}

Smaller number =2\times 10^{-10}

Then

\dfrac{\text{Greater number}}{\text{Smaller number}}\\ \\=\dfrac{4\times 10^{-5}}{2\times 10^{-10}}\\ \\=\dfrac{4}{2}\times \dfrac{10^{-5}}{10^{-10}}\\ \\=2\times \dfrac{1}{10^{-5}}\\ \\=2\times 10^5\\ \\=2\times 100,000\\ \\=200,000

7 0
4 years ago
What is the sum of the first 7 terms of the geometric series:<br><br> -8 + (-4) + (-2) + 1 + 1/2+...
s2008m [1.1K]
a_1=-8;\ a_2=-4;\ r=a_2:a_1\to r=-4:(-8)=\dfrac{1}{2};\ n=7\\\\S_n=\dfrac{a_1(1-r^n)}{1-r}\\\\subtitute:\\\\S_7=\dfrac{-8\left[1-\left(\dfrac{1}{2}\right)^7\right]}{1-\dfrac{1}{2}}=\dfrac{-8\left(1-\dfrac{1}{128}\right)}{\dfrac{1}{2}}\\\\=\dfrac{-8\cdot\dfrac{127}{128}}{\dfrac{1}{2}}=-\dfrac{127}{16}\cdot\dfrac{2}{1}=-\dfrac{127}{8}=-15\dfrac{7}{8}
4 0
4 years ago
Someone help me with number 3
julia-pushkina [17]
Angle ABD = 40 Degrees. Angle DBC = 50 Degrees. Because we know that a right angle ( a boxed corner ) is 90 Degrees, you add up the X's and divide by 90 to find what X is. X in this case is 10. You then multiply using X ( 10 ). 4x10 is 40 and 5x10 is 50. Thus getting your angles.
7 0
4 years ago
Read 2 more answers
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