Answer: I believe it should be answer B
Step-by-step explanation: the x coordinate pairs with y and vice versa and if it’s positive you subtract is how I remember it.
If $25 is 5 times what Lisa earned, we simply divide that $25 by 5 to find that her earnings were $25 ÷ 5 = $5.
Answer:
Dividing a whole number by a fraction you would just multiply the bottom number of the fraction by the whole number.
Step-by-step explanation:
(here is how to divide a fraction by a whole number, if you need help on that also.)
1. Turn the whole number into a fraction. ( ex: 2=2/1)
2. Multiply the fraction by the whole number fraction.
3. Multiply the tops together and the bottoms together
Dividing A Fraction By A Fraction
1. Arrange the equation
2. Keep the first fraction
3. Change the sign
4. flip the fraction
5. Multiply the tops together and the bottoms together
Answer:
The mentioned number in the exercise is:
Step-by-step explanation:
To obtain the mentioned number in the exercise, first you must write the equations you can obtain with it.
If:
- x = hundredths digit
- y = tens digit
- z = ones digit
We can write:
- x = z + 1 (the hundreds digit is one more than the ones digit).
- y = 2x (the tens digit is twice the hundreds digit).
- x + y + z = 11 (the sum of the digits is 11).
Taking into account these data, we can use the third equation and replace it to obtain the number and the value of each digit:
- x + y + z = 11
- (z + 1) + y + z = 11 (remember x = z + 1)
- z + 1 + y + z = 11
- z + z +y + 1 = 11 (we just ordered the equation)
- 2z + y + 1 = 11 (z + z = 2z)
- 2z + y = 11 - 1 (we passed the +1 to the other side of the equality to subtract)
- 2z + y = 10
- 2z + (2x) = 10 (remember y = 2x)
- 2z + 2x = 10
- 2z + 2(z + 1) = 10 (x = z + 1 again)
- 2z + 2z + 2 = 10
- 4z + 2 = 10
- 4z = 10 - 2
- 4z = 8
- z = 8/4
- <u>z = 2</u>
Now, we know z (the ones digit) is 2, we can use the first equation to obtain the value of x:
- x = z + 1
- x = 2 + 1
- <u>x = 3</u>
And we'll use the second equation to obtain the value of y (the tens digit):
- y = 2x
- y = 2(3)
- <u>y = 6</u>
Organizing the digits, we obtain the number:
- Number = xyz
- <u>Number = 362</u>
As you can see, <em><u>the obtained number is 362</u></em>.
For every kilometer, there is 0.621371 miles.
So, 100 kilometers is 62.1371 miles.
Multiply 0.621371 by 100.
