Apple pie- $4
lemon pie- $14
A * 4 = E........A = E / 4
B / 4 = E........B = 4E
C + 4 = E......C = E - 4
D - 4 = E.......D = E + 4
A + B + C + D = 100
(E/4) + (4E) + (E - 4) + (E + 4) = 100
E/4 + 6E = 100 ....multiply by 4
E + 24E = 400
25E = 400
E = 400/25
E = 16 <===
Answer:
120960
Step-by-step explanation:
We get 11 books 7 of geography and 4 of chemistry
We need to line all of them with 2 constraints
1.-three of the geography must be: 1 in the middle and in each end, then we already have
C₄,₃ = 4! / ( 4 - 3 ) ! C₄,₃ = 4*3*2*1
C₄,₃ = 24 different ways
Now we have 7 books of chemistry. To place them we get
P₇ = 7! P₇ = 7*6*5*4*3*2*1 P₇ = 5040
Now the total number will be
C₄,₃* P₇ = 120960
Answer:
Step-by-step explanation:
Given:
The 
term of the sequence is given as:
In order to find the fifth term of this sequence, we need to plug in 5 for 
in the above expression and solve. This gives,
Therefore, the fifth term of the sequence is .
<h2>
</h2>
◇◆□■□■□■□■□■□■□■□■□■□■□■□■□■□■□■□■□■□◆◇
5a + ( -5 ) - 3a + 10b - 3 - b
( 5a - 3a ) + ( -5 - 3 ) + ( 10b - b )
2a + ( -8 ) + 9b
◇◆□■□■□■□■□■□■□■□■□■□■□■□■□■□■□■□■□■□◆◇
