Bob has some 10lb weights and some 3lb weights. together, all his weights add up to 50 lb. if x represents the number of 3lb weights and y represents the number of 10lb weights, which equation can be used to find the number of each type of weight bob has?
( explain answer)
a. 3x-10y=50
b.3x=50-10y
c.50+10y=3y
d.50+3y=10y

B

Step-by-step explanation:

if x represents the number of 3 lb weights and y represent the number of 10 lb  weights.

Then 3 x+10 y=50

or 3x=50-10 y

so B

idk

step-by-step explanation:

the answer is b: 18

step-by-step explanation:

use the pythagorean theorem to .

a^2+b^2=c^2

plug 18 for "r"

the 2 legs are 18 and 24

18^2+24^2=c^2

324+576=c^2

900=c^2

c=30

30-12=18

18 is the radius

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