Answer: 2x - $1000
<u>Step-by-step explanation:</u>
Initial investment: x
First Month: x - $500 <em>because she lost $500</em>
Second Month: 2(x - $500) = 2x - $1000 <em>because she double her money from the end of the first month.</em>
Answer:
47
Step-by-step explanation:
Y=5x+6 will pass through (1,11) and it is parallel to y=5x-7
5x can be interpreted as 5/1, which is the rise over run ( rise / run )
for every X value the line will go up by five
Y=Mx+B
If we start at 11 and go down by five we get 6, this means if we have a B value of 6, with a rise/run of 5/1. at the first X value (1, Y), the Y value will be 11. (1,11)
I'm bad at explaining so ask away and ill further elaborate.
Answer:
a. standard notation means in the number written in only number digits.
- to convert these multiply the two numbers given. FYI these are given in scientific notation, which is used so that numbers are easier to write.
<u>remember</u>: if the exponent is negative, you have move the decimal to the right. whereas, if the exponent is positive, you have to move the decimal to the left.
3 X 10^-4 --> move 4 places to the right.
answer - table salt: 0.0003
1.2 X 10^-2 --> move 2 places to the right.
answer - rock salt: 0.012
b. we know the standard notation of table salt is 0.003, so we simply multiply 40 by this.
answer - 0.0003 X 40 = 0.012
c. 0.012 = 0.012 (yes)
answer - yes the value i got in part B is equal to the mass of an average grain of rock salt. this shows that the mass of an average table salt is 1/40 times smaller than the mass of an average grain of rock salt.
-<em> i am not sure about the "what does this mean" part. you can put whatever there but i put what i think it could be. i think it would be based on what notes you took on class. </em>