Corrcet answer is the second choice! (1407.4)
Answer:
Step-by-step explanation:
<u>GIVEN:
</u>
To find the missing number in the proportion, you have to isolate it the term of x from one side of the equation.
![\sf{\dfrac{8}{7}=\dfrac{x}{21} }](https://tex.z-dn.net/?f=%5Csf%7B%5Cdfrac%7B8%7D%7B7%7D%3D%5Cdfrac%7Bx%7D%7B21%7D%20%20%7D)
First, thing you do is switch sides.
![\sf{\dfrac{x}{21}=\dfrac{8}{7} }](https://tex.z-dn.net/?f=%5Csf%7B%5Cdfrac%7Bx%7D%7B21%7D%3D%5Cdfrac%7B8%7D%7B7%7D%20%20%7D)
Multiply by 21 from both sides.
![\Longrightarrow: \sf{\dfrac{21x}{21}=\dfrac{8*21}{7} }](https://tex.z-dn.net/?f=%5CLongrightarrow%3A%20%5Csf%7B%5Cdfrac%7B21x%7D%7B21%7D%3D%5Cdfrac%7B8%2A21%7D%7B7%7D%20%7D)
Solve.
Multiply the numbers from left to right.
Use the order of operations.
PEMDAS stands for:
- Parentheses
- Exponents
- Multiply
- Divide
- Add
- Subtract
![\Longrightarrow: \sf{\dfrac{8*21}{7}=\dfrac{168}{7}=24 }](https://tex.z-dn.net/?f=%5CLongrightarrow%3A%20%5Csf%7B%5Cdfrac%7B8%2A21%7D%7B7%7D%3D%5Cdfrac%7B168%7D%7B7%7D%3D24%20%7D)
![\Longrightarrow: \boxed{\sf{x=24}}](https://tex.z-dn.net/?f=%5CLongrightarrow%3A%20%5Cboxed%7B%5Csf%7Bx%3D24%7D%7D)
- <u>Therefore, the final answer is x=24.</u>
I hope this helps. Let me know if you have any questions.
Answer:
D
Step-by-step explanation:
The box plot explains the right numbers in order
0.6 = 6/10
0.7 = 7/10
7/9 = 0.77777
0.7 is between the two fractions.
If you need the fraction directly in the middle of the two it is
31/45.