Hope you can see and understand what I wrote
Answer:
a. Rational; b. rational
Step-by-step explanation:
A rational number is the quotient of two integers.
a. ⁴/₇ + ⁻¹/₃
![\begin{array}{rcl}\dfrac{4}{7} + \dfrac{-1}{3} & = & \dfrac{12}{21} + \dfrac{-7}{21} \\\\& = & \dfrac{5}{21}\\\end{array}](https://tex.z-dn.net/?f=%5Cbegin%7Barray%7D%7Brcl%7D%5Cdfrac%7B4%7D%7B7%7D%20%2B%20%5Cdfrac%7B-1%7D%7B3%7D%20%26%20%3D%20%26%20%5Cdfrac%7B12%7D%7B21%7D%20%2B%20%5Cdfrac%7B-7%7D%7B21%7D%20%5C%5C%5C%5C%26%20%3D%20%26%20%5Cdfrac%7B5%7D%7B21%7D%5C%5C%5Cend%7Barray%7D)
The solution is rational.
b. √4 ⅖
![\begin{array}{rcl}\sqrt{4} \, \dfrac{2}{5} & = & 2 \, \dfrac{2}{5}\\\\& = & \dfrac{22}{5}\\\end{array}](https://tex.z-dn.net/?f=%5Cbegin%7Barray%7D%7Brcl%7D%5Csqrt%7B4%7D%20%5C%2C%20%5Cdfrac%7B2%7D%7B5%7D%20%26%20%3D%20%26%202%20%5C%2C%20%5Cdfrac%7B2%7D%7B5%7D%5C%5C%5C%5C%26%20%3D%20%26%20%5Cdfrac%7B22%7D%7B5%7D%5C%5C%5Cend%7Barray%7D)
The solution is rational.
Answer:
(C) 5
Step-by-step explanation:
x+7=2y
<em>Subtract 7 from both sides</em>
x=2y-7
2y-7=x
<em>Multiply both sides by 2</em>
4y-14=2x
y=2x−1
<em>Add 1 to both sides</em>
y+1=2x
<u>Combine equations:</u>
y+1=4y-14
<em>Add 14 to both sides</em>
y+15=4y
<em>Subtract y from both sides</em>
15=3y
3y=15
<em>Divide both sides by 3</em>
y=5
<u>The answer is </u><u>(C) 5.</u>
The answer is 7.57 of what they make for each year
Answer:
He jogs 4 9/10 kilometers in 6 1/8 minutes
Step-by-step explanation:
If you multiple 4/5 time 6 1/8 you'll get 4.9, which in fraction form is 4 9/10.