52.5 divide by 121 is .43, so that means each person represents .43% of the 7th grade population. so by multiplying 231 by .43 you get 100%. the number of students in 7th grade is 231
Answer:
The number of hot beverages = 45 and number of cold beverages = 180
Step-by-step explanation:
We have to write the equation of hot and cold beverages and find how many of each were sold.
Cost of cold beverage = $1.50
Cost of hot beverage = $2.00
The total cost of beverages on that day totaled to be $360.
We are also told that the number of cold beverages sold is 4 times as many hot beverages.
Let number of hot beverages = x
Cold beverages = 4x
Total cost = $360
= 360
8x = 360
x = 
x = 45
The number of hot beverages = 45 and number of cold beverages = 180
Answer: 0.665.
Step-by-step explanation:
60% of the bags are from supplier A, and 95% of them are undamaged.
40% of the bags are from supplier B, and 75% of them are undamaged.
Then, the number of undamaged bags from supplier A is:
0.6*0.95 = 0.57 or 57%
from B is:
0.4*0.75 = 0.3 or 30%
This means that the percentage of undamaged bags is:
57% + 30% = 87%.
Then, the probability that an undamaged bag is from supplier A is equal to the percentage of undamaged bags that came from supplier A (57%) and the total percentage of undamaged bags (87%) this is:
P = 57%/87% = 0.655 or 65.5%
Then the probability that an undamaged bag comes from supplier A is 0.665.
(300+64)x(20+6) just divide te numbers into diferrent groups
Answer:
Here you go
Step-by-step explanation:
(3 x 10) x 8 = x(10 x 8)
What you do the distributive property so multiply 3x10 and you get 30 and multiply by 8 you get 240 so one side is solved. Now multiply 10x8 you get 80 and remember to multiply the variable x so you get 80x=240 now divide 80 both sides and you will get 3 as your total answer
