Answer:The correct answer is D-x/2=45; x=90
Explanation: I just took the test and got a 100%
Answer:
$35 for each sweater
Step-by-step explanation:
First subtract the skirt $160 - $20 = $140
Then Divide to find cost of each sweater $140/4 = 35
Answer: 35
Answer:
9.30918
Step-by-step explanation:
Answer:
75%
Step-by-step explanation:
A percent is a value out of 100.
Change the fraction
to an equivalent fraction with the denominator equal to 100.
×
= 
This fraction represents a percent.
= 75%
Answer:
Because the kind of compounfds that you try to determine using paper chromatography (organic compounds) are usually not soluble in water. Furthermore, water could react chemically with some of this compounds, because it's a very reactive molecule. You need organic solvents that are mostly inert.