The first side of a triangle is three times as long as the second side, and the third side is 50 cm shorter than the first side. Find all sides of triangle if its perimeter is 370 cm.

Step-by-step explanation:

First side = a

Second side = b

Third side = c

a is three times as long as the b (a=3b). C is 50 cm shorter than a (c=50-a)

The perimeter is 370cm (a+b+c=370)

Take and solve for b;

Now b is in terms of a, and c is in terms of a, therefore if we replace in the last equation all these values, we can find a.

Add 50 on both sides.

Multiply by the reciprocal of . The reciprocal of a fraction is the inverted fraction. Therefore it is:

Now replace a in the equation to find b.

Finally, replace a in the equation to find c

stew reads at the fastest rate of 265 words per minute.

step-by-step explanation:

it's a given that felicia reads at 260 word per minute and on connie's graph we can see that she reads 200 words per minute. since stew's table tells us that he read 795 in 3 minutes, we can divide 795 by 3 to find out how many words he reads per minute.

795/3 = 265

stew reads 265 words per minute - he reads at the fastest rate since felecia reads at 260 words per minute and connie reads at 200 words per minute.

stew (265) > felecia (260) > connie (200)

$3,200 x 7.25% = $3,200 x .0725 = $232 interest monthly

$232 monthly x 12 annual = $2, 784

step-by-step explanation: