Answer:
The equation is x= (7.74 /9) 6
Step-by-step explanation:
Hi, to answer this question we have to analyze the information given:
If 9 pencils cost $7.74, we have to divide the total cost ($7.74) by the number of pencils (9) to obtain the price of 1 pencil.
Now that we have the price of 1 pencil, to obtain the cost of 6 of them we simply multiply the result by six.
Mathematically speaking:
x= (7.74 /9) 6
Where:
x = Cost of 6 pencils in $
Solving:
x = 0.86 x 6 = $5.16
<span>Scientific notation is the way that scientists easily handle very large numbers or very small numbers. Scientific notation is written by writting a decimal number between 1 and 10 together with an exponent of 10.
Given
![(4.23\times10^{12})\div(9.0\times10^6)](https://tex.z-dn.net/?f=%284.23%5Ctimes10%5E%7B12%7D%29%5Cdiv%289.0%5Ctimes10%5E6%29)
First, using distributive property of numbers, seperate the decimal numbers and the exponents of 10, we have
![(4.23\div9.0)\times(10^{12}\div10^6)=0.47\times10^{12-6}=0.47\times10^6](https://tex.z-dn.net/?f=%284.23%5Cdiv9.0%29%5Ctimes%2810%5E%7B12%7D%5Cdiv10%5E6%29%3D0.47%5Ctimes10%5E%7B12-6%7D%3D0.47%5Ctimes10%5E6)
Because, scientific notation requires that the decimal number part be a number between 1 and 10, we move the decimal point 1 place foward and subtract 1 from the exponent of 10.
Therefore, </span><span>
![(4.23\times10^{12})\div(9.0\times10^6)](https://tex.z-dn.net/?f=%284.23%5Ctimes10%5E%7B12%7D%29%5Cdiv%289.0%5Ctimes10%5E6%29)
in standard notation is
![4.7\times10^5](https://tex.z-dn.net/?f=4.7%5Ctimes10%5E5)
</span>
Answer: 34/10=3.4 The estimated quotient is 3.4
Step-by-step explanation: Basically, you are dividing 33.7 by 9.5, but first you will need to round to the nearest whole number. A whole number does not contain a decimal. 33.7 rounded to the nearest whole number is 34. 9.5 rounded to the nearest whole number is 10. So, you are dividing 34 by 10. 34 divided by 10 is 3.4.
She walked .6 mph because 3/5 x 2= 6/10
1/2 x 2=1
It’s B because it’s the right answer