What is the value of y in the equation 6.4x 2.8y = 44.4, when x = 3? user: what is the value of x in the equation x ��� y = 30, when y = 15? 4 8 80 200
Answers
=19.2+2.8y=44.4
=2.8y=44.4-19.2
2.8y=25.2
Y=25.2/2.8=9
Y=9
Related Questions
Given that cos 27° = 0.891, enter the sine of a complementary angle. sin
A bucket of candy contains 24 Jolly Ranchers, 18 Hershey Kisses, 12 packs of Smarties, and some Starburst. The probability of reaching in and pulling out a pack of Smarties is How many Starburst are in the bucket?
Which expression is equivalent to 21 + 49?A 7(3 + 49)B 7(3 + 7)C 7(14 + 42)D 7(14 + 49)
Bob has a tree house at a height of 20 ft. When he's feeling adventurous he uses a rope to climb the tree house instead of the ladder. If the weight of the rope is 32 lb, then how much work must Bob do to pull the rope up once he has entered the house? A. 173.00 ft-lb B. 235.29 ft-lb C. 320.00 ft-lb D. 383.54 ft-lb
Answers
Answer:
a = 3
Step-by-step explanation:
f(x) = a(bˣ)
At x = 0
f(0) = a(b⁰)
f(0) = a(1)
f(0) = a
From the graph
f(0) = 3
Therefor
a = 3
R=R1+R2 for R2
Answers
R=R1+R2
subtract R1 from both sides
R-R1=R2
B. 19.87
C. 19.44
D. 19.43
Answers
The answer of the multiplication is 19.872. close to the nearest hundredth, it is 19.87. That is because the digit after 7 is 2 which is less than 5. had it been 5 or greater than 5, the answer would have been A. 19.88.
Answers
angles are x,2x,3x
add
x+2x+3x=6x
6x=180
divide 6
x=30
tmes 2
30*2=60
30*3=90
the angles are 30,60,90 degrees
Answers
Answer:
Your favorite radio station in a given year plays 105120 songs.
Step-by-step explanation:
Lets make some assumptions:
1. A radio program in average last 50 minutes, because 10 of them are for commercials.
2. a song average length is about 3 minutes
3. the speakers use 10 to 20 minutes of the radio program.
4. So, in an hour just 30 minutes are effectively used to play songs on a radio station. That results in 10 per hour at least, and 13.3 at most. So lets settle an average of 12 songs per hour.
5. The radio station plays songs 24 hours a day unstoppable.
Now:
A day has 24 hours, a week seven days and therefor (24*7= 168 hours) 168 hours in a week.
A year has 52.1429 weeks, so it has 8760 Hours (52.17429weeks*168hours=8760 hours )
So:
8760 hours in a year
12 songs per hour
Answers
The volume of the square base is,
V = (s²) (h)
s² = V/h
s² = 3n³ + 13n² + 16n + 4 / 3n + 1
You can do this division by factoring, synthetic division, or by plain division.
Factoring out 3n + 1 from the numerator gives you:
s² = (3n + 1)(n² + 4n + 4) / 3n+1
s² = n² + 4n + 4
Therefore, the area of the square base is n² + 4n + 4.