Answer: x³+y³=180
Step-by-step explain: let's remember the formula x³+y³=(x+y)(x²-xy+y²) and also x³+y³=(x+y)³-3xy(x+y) then 
Answer:
He switched the divisor and the dividend when creating an equation to model the problem in step 1.
Step-by-step explanation:
got it right on edgenity quiz
Answer:L=4 W=15
Step-by-step explanation:
P=2L+2W
38-8=30
If length is 8 less than twice the width and the perimeter is 38, then subtract 38-8 which is 30, then divide 30 by 2 to get 15.
P=2(4) +2(15)
P=38
Answer:
C. 17, 12, 7
Step-by-step explanation:
In a triangle, the sum of the lengths of any two sides must be greater then the length of the third side. If you can show any two segments, the sum of whose lengths is less than the length of the third segment, that cannot form a triangle.
In choices A, B, and D, there is at least one sum of the lengths of two segments that is less then the length of the third segment. That shows that choices A, B, and D cannot form triangles.
A. 8 + 7 = 15 < 16 No
B. 9 + 7 = 16 = 16 No
D. 11 + 5 = 16 < 17 No
C.
17 + 12 = 29 > 7
12 + 7 = 19 > 17
17 + 7 = 24 > 12
Yes
Answer:
13:8:7
Step-by-step explanation:
84 - 24 = 60
60 oranges were either ripe or unripe.
18 more ripe oranges than unripe oranges.
x + 18 = ripe oranges
x = unripe oranges
x + 18 + x = 60
2x + 18 = 60
2x = 42
x = 21
21 are unripe oranges
21 + 18 = 39
39 oranges are ripe.
Ratio of the number of ripe oranges to the number of rotten oranges to the number of unripe oranges.
39:24:21
13:8:7
