Calculate the volume of a cone of dase radius 7cm and height 12cm.

615.99 cm3 (i tried my best)

Step-by-step explanation:

v.of cone= 1/3 x pi x 7² x 12

pi used = 22/7

1/3 x 22/7 x 7² x 12

=615.99 cm3

x + y = 90 5x – 10y = 90 90 – 10y = 5x 90 + 10y = 5x

step-by-step explanation:

last month maria hiked the 5-mile mountain trail a number of times and she hiked the 10-mile canal trail several times. let x represent the number of times she hiked the 5-mile trail, and let y represent the number of times she hiked the 10-mile trail. if she hiked a total of 90 miles, which equation can be used to find the number of times maria hiked each trail? x + y = 90 5x – 10y = 90 90 – 10y = 5x 90 + 10y = 5x