Find each unit rate. Round your answer to the nearest hundredth. 1.
2.
type 800 words in 12 minutes
words per minute
192 students in 4 buses
in each bus
3.
4.
357 miles in 5 hours
miles per hour
8 ducks for $23.60
$
per duck
5.
a 10-lb bag of cherries for $33.49
6.
12 chickens lay 30 eggs
per lb
eggs per chicken
7.
Earn $134 in 8 hours
8.
3
pizzas for $19.99
each
per hour
19.
10.
3500 calories for 6 servings of pie
calories per serving
351 chairs in 27 rows
chairs in each row
11. $37.29 for 2 pairs of jeans.
12.
$37.29 for 2 pairs of ducks

7

step-by-step explanation:

yuo ned the activity or vertical angle of the form of 1,7 but 2,2 has a c4,2 as it verticie so i not have a car

hello,

b) 62.47% of the students are between 14 and 18 years old.

step-by-step explanation:

mean = 15 and standard deviation = 2

student between 14 to 18

formula used z-score

for age 14 , z score

using z-table , p(z> -0.5)=0.3085

for age 18 , z score

using z-table , p(z< 1.5)=0.9332

p(-0.5< z< 1.5)=0.9332-0.3085 = 0.6247

thus, 62.47% of the students are between 14 and 18 years old.

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step-by-step explanation:

first one because it can't have a fraction in it

step-by-step explanation:

sounds & other waves originate from any vibrating object