Sam and Bruno were computing how many kilometers they rode in the 3 bike trips they took last month. In order, they rode 45.7, 40.9, and 38 miles. Their solutions are shown. If one kilometer equals 0.621 miles, which is the best solution to find the total number of kilometers they rode? Why is it correct?
Bruno is correct. When going from a larger unit to a smaller unit you need to divide.
Bruno is correct. When going from a smaller unit to a larger unit you need to divide.
Sam is correct. When going from a larger unit to a smaller unit you need to multiply.
Sam is correct. When going from a smaller unit to a larger unit you need to multiply.
Answers
We are given number of miles the 3 bike trips they took last month = 45.7, 40.9, and 38 miles.
Sam and Bruno were computing how many kilometers.
Also one kilometer equals 0.621 miles.
From this we can see than 1 kilometer is smaller unit and a mile is a larger unit.
In order to convert number of miles into kilometers, we need to divide each number of mile by 0.621 miles.
We always divide a larger value by a smaller value to get the smaller unit.
Therefore,
Bruno is correct. When going from a larger unit to a smaller unit you need to divide.
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James started tutoring children several times a week. The first 2 weeks he had to buy tutoring supplies and had losses of $40 and $56. The next three weeks he made a profit of $105, $70, and $140. At the end of the 6 weeks, he had a net profit of $252.
(b) What was James's average profit or loss for the 6 weeks? Show your work.
This is on k12, please help me!
Answers
Week 1 : - 40
Week 2 : - 56
Week 3 : 105
Week 4 : 70
Week 5 : 140
Week 6 : ?
At the end of the 6th week, net profit is 252.
Profit = 105 + 70 + 140 = 315
Loss = 40 + 56 = 96
Net Profit = 315 - 96 = 219
252 - 219 = 33 Profit on Week 6.
Average profit : 252 / 6 = 42 per week
Answers
The two numbers are 35 and 65.
What is an equation?
Mathematically, an equation can be defined as a statement that supports the equality of two expressions, which are connected by the equals sign “=”.
For example, 2x – 5 = 13.
Given that, two numbers, their sum is 100 and the difference between them is 30. We need to find the number,
Let the 2 numbers be x and y.
y = x + 30
Sum of the two numbers = 100
x + y = 100
x + (x + 30) = 100
2x = 70
x = 35
y = x + 30 = 65
Hence, the two numbers are 35 and 65.
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y = x + 30 ( as the difference between the two numbers is 30)
Sum of the two numbers = 100
=> x + y = 100
=> x + (x + 30) = 100 ( as y = x + 30 as shown above )
=> 2x = 70
=> x = 35
y = x + 30 = 65
Hope I helped! you may comment here if you have any further doubts and i will answer them :)
Answers
Answers
Usingthe percent rule, It is found that 6 is 12.5 percent of 48.
How to find how much percent 'a' is of 'b'?
Suppose a number is 'a' Suppose another number is 'b' We want to know how much percent of 'b' is 'a'. Then, it is calculated as:
(in percentage)
We are asked to find that 6 is what percent of 48.
Let x is the unknown percent.
100% / x% = 48/6
Now multiply both sides of the equation by x
(100/x)x = (48/6)x
Then divide both sides of the equation by (8) to get x
100 = 8x
100/8 = x
12.5 = x
x=12.5
Hence, It is found that 6 is 12.5 percent of 48.
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100%/x%=48/6
(100/x)*x=(48/6)*x - we multiply both sides of the equation by x
100=8*x - we divide both sides of the equation by (8) to get x
100/8=x
12.5=x
x=12.5
Hope this helped! Please mark me the brainliest!
Answers
so is 1/10 meter is 9 cm longer than 1/100 meter.