Answer:
A: 740-20= 720
B: 700+ (20+0) = 700
Step-by-step explanation:
B: 20
x0 = 0
Answer is D) 5 mc, 15 t&f
you have two unknown variables, thus you need two equations
definitions:
a = quantity of multiple choice questions
b = quantity of true and false questions
100 points = a*11 points/question + b*3 points/question
20 questions = a +b
using 2nd equation, find equation for 'a':
a = 20 - b
substitute this equation for 'a' into 1st equation:
100 = 11a + 3b
100 = 11(20 - b) + 3b
100 = 220 - 11b + 3b
100 - 220 = -8b
-120 = -8b
-120/-8 = b
15 = b
resolve 2nd equation now knowing value of 'b':
a = 20 - b
a = 20 - 15
a = 5
verify solution is correct by substituting values into first equation
11a + 3b = 100
11(5) + 3(15) = 100
55 + 45 = 100
100 = 100 [OK]
verify solution is correct by substituting values into second equation
a + b = 20
5 + 15 = 20
20 = 20 [OK]
Since 6 gallons flow in 1 minute
Then 70 gallons will flow in ;
70 * 1/6. = 11.7 minutes
It will takes 11.7 minutes to fill the water trough
Answer:
<h2>D. fraction 1 over 16 ft³</h2>
Step-by-step explanation:
The formula of a volume of a cube:
V = s³
s - side length
We have s = 1/4 ft. Substitute:
V = (1/4)³ = 1/64 ft³
We have four cubes.
4V = 4 · 1/64 = 1/16 ft³
Answer:
$23,385.14
Step-by-step explanation:
1.031 = 103.1%. you have the 100% there to keep the initial money loaned and 3.1% for the additional interest
22000*1.031 = 22682 for one year and then multiply by 1.031 again with the new answer (22682) which gives you 23385.142 and round to 2 decimals for cents.