Seraphina is driving two hours to visit her family. for the first hour, she traveled at a speed of 58 miles per hour. then, in the second hour, she traveled at a speed of 67 miles per hour. what is the percentage increase of seraphina's speed? if necessary, round to the nearest tenth of a percent.

The percentage increase of Seraphina's speed is 15.52 %

Step-by-step explanation:

Total amount if time that Seraphina drove to visit her family is 2 hours.

For the first hour, she traveled at a speed of 58 miles per hour and in the second hour, she traveled at a speed of 67 miles per hour.

Increase in speed is the speed at which she travelled in the second hour - the speed at which she travelled in the first hour. It becomes

67-58 = 9 miles per hour

The percentage increase of Seraphina's speed is

(Increase in speed/ her speed in the first hour) × 100. This becomes

9/58 × 100

= 15.5172

15.52 %

where does the z at is it on the x axes or on the y axes any way if it is on the y axes put it horizontally and if it is on the x axes put it vertically

mariah is studying the life cycle of the monarch butterfly. she must choose one stage in the cycle to present in science class: egg, caterpillar, chrysalis, or adult. she plans to make her choice randomly using a custom spinner divided into four sections. first, however, she spins the spinner 50 times to see the frequencies it generates.

stage times landed on

egg 10

caterpillar 12

chrysalis 15

adult 13

step-by-step explanation: