Brian has reduced his cholesterol level by 9% after his last check up. If his original level was 260, what is his approximate cholesterol level now?

23.4

Step-by-step explanation:

the reason why we multiply the number is because every time you are finding the answer with percentage you must multip ly.

but then we want to find the answer so you're going to divide 100 by 260 that gives you 2.6 then you still have the 9 we want to cross out the 100 so you still have the 9 so you multiply the 9 by the 2.6 and you get your answer which is 23.4.

I hope I was help

c.   x=2.4cm

step-by-step explanation:

similar triangles are triangles which have the same shape but not the same size. this means their angle measures are equal but their side lengths are not instead they are proportional. to solve, we will set up a proportion and solve.

a proportion is two equal ratios set equal to each other. we form the ratios by finding corresponding sides (sides which match to each other on both triangles by their position). out ratios will be one side of the small triangle over the corresponding side on the big triangle as shown below:

.

to solve the proportion, we'll cross multiply by multiplying numerator with denominator across the equal sign.

94

step-by-step explanation:

average the numbers and use a variable to figure out the minimum to get a 90.

(79+94+91+92+x)/5=90

x = 94