Matt makes $80 a month mowing lawns. His friend James also mows lawns, but he makes x dollars less per month than Matt does. James makes a total of $816 per year. How much less each month does James make than Matt? Equation: 12(80 – x) = 816

Solve the linear equation to find the value for x.

x =
How much does James earn each month?

Remember that x represents how much less per month James makes than Matt.

The data is:

Matt makes $80 per moth.

James makes ($80 - x) per month.

James makes $816 per year.

Now, a year has 12 months, then we have that:

($80 - x)*12 = $816

With this equation we can find the value of x.

so we must isolate x in one side:

($80 - x)*12 = $816

$80*12 - x*12 = $816

$960 - x*12 = $816

x*12 = $960 - $816 = $144

x = $144/12 = $12

Then james makes $12 less than Matt each month, this means that James makes:

J = ($80 -  $12) = $68 per month.

hydroxyl -oh

alcohols, always polar, can form hydrogen bonds with h2o molecules

carboxyl -cooh  

cargoxylic acids, has acidic properties which is a source of hydrogen ions, found in cells in ionized for with a charge of oh-1

carbonyl > co

ketone if within skeleton, aldehyde if group is at the end of skeleton, k & a may be structural isomers, it determines 2 sugars (ketose & aldose)

amino -nh2

amines, acts as a base, it can pick up h+ ions from surrounding solution, ionized with charge of 1+

methyl ch2

addition to rna/dna affects and gene expression

phosphate -opo3 ²⁻

organic phosphates, contributes to negative charge to, molecule that it is a part of, and potential to react with h20

sulfhydryl -sh

thiols, cross-linking stabilize the protein, and it is structure