A wool sweater originally costs $42.00. If the sweater is on sale for 25% off, what is the new cost of the sweater?

The answer would be $31.5

Step-by-step explanation:

25 percent of 42 is 10.5. 42 minus 10.5 is 31.5.

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34.5 cm

step-by-step explanation:

generally for a circular segment of angle, θ° and radius r

arc length

= (θ/360) x circumference

= (θ/360) x 2πr

in our case, θ = 60°, π=3.142 and r = 33 cm

substitute into above formula

arc length

= (60/360) x 2(3.142)( 33) = 34.5 cm

step-by-step explanation:

for exempl this   system of equations   y = x - 3

                                                                y = 2x - 5

look   the line : y = x -3     ( red)

                            the line : y = 2x -5 ( bleus)