Answer:
<h3><u>Let's</u><u> </u><u>understand the concept</u><u>:</u><u>-</u></h3>
- Here 12 is 90% of a number.
- So we can say that 90% of That number is 12 .
- In this way we can get the the number
<h3><u>Solution</u><u>:</u><u>-</u></h3>
Let,
the number=x
<h3>According to the question ,</h3>
![{:}\longrightarrow](https://tex.z-dn.net/?f=%7B%3A%7D%5Clongrightarrow)
![\sf 90\% \:of \;x=12](https://tex.z-dn.net/?f=%5Csf%2090%5C%25%20%5C%3Aof%20%5C%3Bx%3D12%20)
- We know 90%=90/100
- so add it
![{:}\longrightarrow](https://tex.z-dn.net/?f=%7B%3A%7D%5Clongrightarrow)
![\sf {\dfrac {90}{100}}\times x=12](https://tex.z-dn.net/?f=%5Csf%20%7B%5Cdfrac%20%7B90%7D%7B100%7D%7D%5Ctimes%20x%3D12%20)
![{:}\longrightarrow](https://tex.z-dn.net/?f=%7B%3A%7D%5Clongrightarrow)
![\sf {\dfrac {90x}{100}}=12](https://tex.z-dn.net/?f=%5Csf%20%7B%5Cdfrac%20%7B90x%7D%7B100%7D%7D%3D12%20)
- Now use cross multiplication method
![{:}\longrightarrow](https://tex.z-dn.net/?f=%7B%3A%7D%5Clongrightarrow)
![\sf 90x=12\times 100](https://tex.z-dn.net/?f=%5Csf%2090x%3D12%5Ctimes%20100%20)
![{:}\longrightarrow](https://tex.z-dn.net/?f=%7B%3A%7D%5Clongrightarrow)
![\sf 90x=1200](https://tex.z-dn.net/?f=%5Csf%2090x%3D1200%20)
![{:}\longrightarrow](https://tex.z-dn.net/?f=%7B%3A%7D%5Clongrightarrow)
![\sf x={\dfrac {1200}{90}}](https://tex.z-dn.net/?f=%5Csf%20x%3D%7B%5Cdfrac%20%7B1200%7D%7B90%7D%7D)
![{:}\longrightarrow](https://tex.z-dn.net/?f=%7B%3A%7D%5Clongrightarrow)
![\sf x={\dfrac {200}{15}}](https://tex.z-dn.net/?f=%5Csf%20x%3D%7B%5Cdfrac%20%7B200%7D%7B15%7D%7D)
- Answer will come in decimals so we take approximate value.
![{:}\longrightarrow](https://tex.z-dn.net/?f=%7B%3A%7D%5Clongrightarrow)
![\sf x=13.3](https://tex.z-dn.net/?f=%5Csf%20x%3D13.3%20)
![{:}\longrightarrow](https://tex.z-dn.net/?f=%7B%3A%7D%5Clongrightarrow)
![\sf x=approximately \:13](https://tex.z-dn.net/?f=%5Csf%20x%3Dapproximately%20%5C%3A13)
The number is 13.
Answer:
$25.08
Step-by-step explanation:
48/2= 24(50% of 100% simplifies to 1/2)
24(0.045)=1.08
24 + 1.08 = 25.08
We can assume that the y-intercept for this equation is 125, because that would be how much Anna already has saved before she begins saving money from her allowance. Then, we know that Anna adds $2 to her savings each day from the problem, so we know that the slope will be positive 2 then.
Equation:
y = 2x + 125
Graph:
Attached below
Hope this helps!! :)
Answer:
the area of the trapezoid is 32
Step-by-step explanation:
a (base)2
b (Base)6
h (height)8
Answer:
Step-by-step explanation:
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