Answer:
-77
Step-by-step explanation:
77+77=154 wrong
77+(-77)=0 right
77+0=77 wrong
77+(-76)=1 wrong
Answer:
11 pennies and 9 nickels
Step-by-step explanation:
Set up a system of equations where p is the number of pennies and n is the number of nickels:
p + n = 20
0.01p + 0.05n = 0.56
Solve by substitution by rearranging the first equation:
p + n = 20
p = 20 - n
Then, plug this in as p into the second equation, and solve for n:
0.01p + 0.05n = 0.56
0.01(20 - n) + 0.05n = 0.56
0.2 - 0.01n + 0.05n = 0.56
0.2 + 0.04n = 0.56
0.04n = 0.36
n = 9
Then, plug this into the first equation to solve for p:
p + n = 20
p + 9 = 20
p = 11
So, Jayden has 11 pennies and 9 nickels
Its been a slight while since I have done probibility, but from what I remember, I came op with the answer of a 2.3% probability that all of her friends would be able to come to the lunch she plans on the 4 different days.
Answer:
0.837
Step-by-step explanation:
3850*4.65%=179.025
150/179.025=0.837
0.837
Answer:
28 biscuits
18 packages of pemmicans
4 packages of butter and cocoa
Step-by-step explanation:
We are given percentage of total daily calories for each item.
Since total number of calories per person each day is 5600,then;
Number of calories from biscuit daily = 40% × 5600 = 2240 calories
Since there are 80 calories per biscuits, then number of biscuits = 2240/80 = 28 biscuits
Number of calories from pemmican daily = 45% × 5600 = 2520 calories
Since there are 140 calories per package, then number of packages of pemmican = 2520/140 = 18 packages of pemmicans
Number of calories from butter and cocoa daily = 15% × 5600 = 840
Since there are 210 calories per package, then number of packages = 840/210 = 4 packages of butter and cocoa