Answer:
porfavor en español pls para yo poder resolverlo
<span>You can probably just work it out.
You need non-negative integer solutions to p+5n+10d+25q = 82.
If p = leftovers, then you simply need 5n + 10d + 25q ≤ 80.
So this is the same as n + 2d + 5q ≤ 16
So now you simply have to "crank out" the cases.
Case q=0 [ n + 2d ≤ 16 ]
Case (q=0,d=0) → n = 0 through 16 [17 possibilities]
Case (q=0,d=1) → n = 0 through 14 [15 possibilities]
...
Case (q=0,d=7) → n = 0 through 2 [3 possibilities]
Case (q=0,d=8) → n = 0 [1 possibility]
Total from q=0 case: 1 + 3 + ... + 15 + 17 = 81
Case q=1 [ n + 2d ≤ 11 ]
Case (q=1,d=0) → n = 0 through 11 [12]
Case (q=1,d=1) → n = 0 through 9 [10]
...
Case (q=1,d=5) → n = 0 through 1 [2]
Total from q=1 case: 2 + 4 + ... + 10 + 12 = 42
Case q=2 [ n + 2 ≤ 6 ]
Case (q=2,d=0) → n = 0 through 6 [7]
Case (q=2,d=1) → n = 0 through 4 [5]
Case (q=2,d=2) → n = 0 through 2 [3]
Case (q=2,d=3) → n = 0 [1]
Total from case q=2: 1 + 3 + 5 + 7 = 16
Case q=3 [ n + 2d ≤ 1 ]
Here d must be 0, so there is only the case:
Case (q=3,d=0) → n = 0 through 1 [2]
So the case q=3 only has 2.
Grand total: 2 + 16 + 42 + 81 = 141 </span>
Answer:
B and C
Step-by-step explanation:
They are on the same line so they ad up to 180 and are supplementary
490J
Step-by-step explanation:
Given parameters:
Mass of rock = 5kg
Height of hill = 10m
Unknown:
Potential energy at the hilltop = ?
Solution:
Potential energy is the energy at rest of a body. it is given as:
P.E = mgh
m is the mass of the body
g is the acceleration due to gravity = 9.8m/s²
h is the height of the hilltop
P.E = 5 x 10 x 9.8 = 490J
Learn more:
Potential energy brainly.com/question/10770261
#learnwithBrainly
Answer:
C
Step-by-step explanation:
First do what’s in the parentheses. Do copy flip flip
1/4 x 4/7 = 1/7
Then do multiplication 7/5 x 1/7 = 1/5
Then multiply 1/5 by -10 and you get -2
